Asp.net中GridView使用详解(引)

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GridView无代码分页排序 GridView选中，编辑，取消，删除 GridView正反双向排序 GridView和下拉菜单DropDownList结合 GridView和CheckBox结合 鼠标移到GridView某一行时改变该行的背景色方法一 鼠标移到GridView某一行时改变该行的背景色方法二 GridView实现删除时弹出确认对话框 GridView实现自动编号 GridView实现自定义时间货币等字符串格式 GridView实现用“...”代替超长字符串 GridView一般换行与强制换行 GridView显示隐藏某一列 GridView弹出新页面/弹出新窗口 GridView固定表头(不用javascript只用CSS，2行代码，很好用) GridView合并表头多重表头无错完美版（以合并3列3行举例） GridView突出显示某一单元格（例如金额低于多少，分数不及格等） GridView加入自动求和求平均值小计 GridView数据导入Excel/Excel数据读入GridView

1.GridView无代码分页排序：

效果图： 1.AllowSorting设为True，aspx代码中是AllowSorting="True"； 2.默认1页10条，如果要修改每页条数，修改PageSize即可，在aspx代码中是PageSize="12"。 3.默认的是单向排序的，右击GridView弹出“属性”，选择AllowSorting为True即可。

2.GridView选中，编辑，取消，删除：

效果图：

后台代码： 你可以使用sqlhelper,本文没用。代码如下： using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page {

//清清月儿http://blog.csdn.net/21aspnet      SqlConnection sqlcon;     SqlCommand sqlcom;     string strCon = "Data Source=(local);Database=数据库名;Uid=帐号;Pwd=密码";     protected void Page_Load(object sender, EventArgs e)     {         if (!IsPostBack)         {             bind();         }     }     protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)     {         GridView1.EditIndex = e.NewEditIndex;         bind();     }

//删除     protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)     {         string sqlstr = "delete from 表 where id=‘" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "‘";         sqlcon = new SqlConnection(strCon);         sqlcom = new SqlCommand(sqlstr,sqlcon);         sqlcon.Open();         sqlcom.ExecuteNonQuery();         sqlcon.Close();         bind();     }

//更新     protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)     {         sqlcon = new SqlConnection(strCon);         string sqlstr = "update 表 set 字段1=‘"             + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "‘,字段2=‘"             + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text.ToString().Trim() + "‘,字段3=‘"             + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "‘ where id=‘"             + GridView1.DataKeys[e.RowIndex].Value.ToString() + "‘";         sqlcom=new SqlCommand(sqlstr,sqlcon);         sqlcon.Open();         sqlcom.ExecuteNonQuery();         sqlcon.Close();         GridView1.EditIndex = -1;         bind();     }

//取消     protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)     {         GridView1.EditIndex = -1;         bind();     }

//绑定     public void bind()     {         string sqlstr = "select * from 表";         sqlcon = new SqlConnection(strCon);         SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);         DataSet myds = new DataSet();         sqlcon.Open();         myda.Fill(myds, "表");         GridView1.DataSource = myds;         GridView1.DataKeyNames = new string[] { "id" };//主键         GridView1.DataBind();         sqlcon.Close();     } }
前台主要代码：                             ... ... < asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"                         ForeColor="#333333" GridLines="None" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"                         OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit">                         <FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />                         <Columns>                             <asp:BoundField DataField="身份证号码" HeaderText="用户ID" ReadOnly="True" />                             <asp:BoundField DataField="姓名" HeaderText="用户姓名" />                             <asp:BoundField DataField="员工性别" HeaderText="性别" />                             <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />                             <asp:CommandField HeaderText="选择" ShowSelectButton="True" />                             <asp:CommandField HeaderText="编辑" ShowEditButton="True" />                             <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />                         </Columns>                         <RowStyle ForeColor="#000066" />                         <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />                         <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />                         <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />                     </asp:GridView>

3.GridView正反双向排序： 效果图：点姓名各2次的排序，点其他也一样可以。 后台代码： using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; public partial class Default3 : System.Web.UI.Page {

//清清月儿的博客http://blog.csdn.net/21aspnet      SqlConnection sqlcon;     string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=";     protected void Page_Load(object sender, EventArgs e)     {         if (!IsPostBack)         {             ViewState["SortOrder"] = "身份证号码";             ViewState["OrderDire"] = "ASC";             bind();         }     }     protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)     {         string sPage = e.SortExpression;         if (ViewState["SortOrder"].ToString() == sPage)         {             if (ViewState["OrderDire"].ToString() == "Desc")                 ViewState["OrderDire"] = "ASC";             else                 ViewState["OrderDire"] = "Desc";         }         else         {             ViewState["SortOrder"] = e.SortExpression;         }         bind();     }

    public void bind()     {                 string sqlstr = "select top 5 * from 飞狐工作室";         sqlcon = new SqlConnection(strCon);         SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);         DataSet myds = new DataSet();         sqlcon.Open();         myda.Fill(myds, "飞狐工作室");         DataView view = myds.Tables["飞狐工作室"].DefaultView;         string sort = (string)ViewState["SortOrder"] + " " + (string)ViewState["OrderDire"];         view.Sort = sort;         GridView1.DataSource = view;         GridView1.DataBind();         sqlcon.Close();     } }

前台主要代码： <asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"                         CellPadding="3" Font-Size="9pt" OnSorting="GridView1_Sorting" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">                         <FooterStyle BackColor="White" ForeColor="#000066" />                         <Columns>                              <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />                             <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>                             <asp:BoundField DataField="员工性别" HeaderText="性别" SortExpression="员工性别"/>                             <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>                                                         </Columns>                         <RowStyle ForeColor="#000066" />                         <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />                         <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />                         <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />                     </asp:GridView>

4.GridView和下拉菜单DropDownList结合：

效果图：

后台代码： using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; public partial class Default4 : System.Web.UI.Page {     SqlConnection sqlcon;     string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";     protected void Page_Load(object sender, EventArgs e)     {         DropDownList ddl;         if (!IsPostBack)         {             string sqlstr = "select top 5 * from 飞狐工作室";             sqlcon = new SqlConnection(strCon);             SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);             DataSet myds = new DataSet();             sqlcon.Open();             myda.Fill(myds, "飞狐工作室");             GridView1.DataSource = myds;             GridView1.DataBind();             for (int i = 0; i <= GridView1.Rows.Count - 1; i++)             {                 DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];                 if (Convert.ToString(mydrv["员工性别"]).Trim() == "True")                 {                     ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1");                     ddl.SelectedIndex = 0;                 }                 if (Convert.ToString(mydrv["员工性别"]).Trim() == "False")                 {                     ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1");                     ddl.SelectedIndex = 1;                 }             }             sqlcon.Close();         }     }     public SqlDataReader ddlbind()     {         string sqlstr = "select distinct 员工性别 from 飞狐工作室";         sqlcon = new SqlConnection(strCon);         SqlCommand sqlcom = new SqlCommand(sqlstr, sqlcon);         sqlcon.Open();         return sqlcom.ExecuteReader();     }

前台主要代码： <asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"                         CellPadding="3" Font-Size="9pt"  BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">                         <FooterStyle BackColor="White" ForeColor="#000066" />                         <Columns>                              <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />                             <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>                             <asp:TemplateField HeaderText="员工性别">                                 <ItemTemplate>                                     <asp:DropDownList ID="DropDownList1" runat="server" DataSource=‘<%# ddlbind()%>‘ DataValueField="员工性别" DataTextField="员工性别">                                     </asp:DropDownList>                                 </ItemTemplate>                             </asp:TemplateField>                             <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>                                                         </Columns>                         <RowStyle ForeColor="#000066" />                         <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />                         <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />                         <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />                     </asp:GridView>

5.GridView和CheckBox结合：

效果图：

后台代码：

using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient;

public partial class Default5 : System.Web.UI.Page { //清清月儿http://blog.csdn.net/21aspnet     SqlConnection sqlcon;     string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";     protected void Page_Load(object sender, EventArgs e)     {         if (!IsPostBack)         {             bind();         }     }     protected void CheckBox2_CheckedChanged(object sender, EventArgs e)     {         for (int i = 0; i <= GridView1.Rows.Count - 1; i++)         {             CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");             if (CheckBox2.Checked == true)             {                 cbox.Checked = true;             }             else             {                 cbox.Checked = false;             }         }     }     protected void Button2_Click(object sender, EventArgs e)     {         sqlcon = new SqlConnection(strCon);         SqlCommand sqlcom;         for (int i = 0; i <= GridView1.Rows.Count - 1; i++)         {             CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");             if (cbox.Checked == true)             {

                string sqlstr = "delete from 飞狐工作室 where 身份证号码=‘" + GridView1.DataKeys[i].Value + "‘";                 sqlcom = new SqlCommand(sqlstr, sqlcon);                 sqlcon.Open();                 sqlcom.ExecuteNonQuery();                 sqlcon.Close();             }         }         bind();     }     protected void Button1_Click(object sender, EventArgs e)     {         CheckBox2.Checked = false;         for (int i = 0; i <= GridView1.Rows.Count - 1; i++)         {             CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1");             cbox.Checked = false;         }     }     public void bind()     {         string sqlstr = "select top 5 * from 飞狐工作室";         sqlcon = new SqlConnection(strCon);         SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);         DataSet myds = new DataSet();         sqlcon.Open();         myda.Fill(myds, "tb_Member");         GridView1.DataSource = myds;         GridView1.DataKeyNames = new string[] { "身份证号码" };         GridView1.DataBind();         sqlcon.Close();     } }

前台主要代码：

<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"                         CellPadding="3" Font-Size="9pt"  BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px">                         <FooterStyle BackColor="White" ForeColor="#000066" />                         <Columns>                              <asp:TemplateField>                                 <ItemTemplate>                                     <asp:CheckBox ID="CheckBox1" runat="server" />                                 </ItemTemplate>                             </asp:TemplateField>                              <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" />                             <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/>                                                         <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/>                                                         </Columns>                         <RowStyle ForeColor="#000066" />                         <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />                         <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />                         <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />                     </asp:GridView>                      <asp:CheckBox ID="CheckBox2" runat="server" AutoPostBack="True" Font-Size="9pt" OnCheckedChanged="CheckBox2_CheckedChanged"                         Text="全选" />                     <asp:Button ID="Button1" runat="server" Font-Size="9pt" Text="取消" OnClick="Button1_Click" />                     <asp:Button ID="Button2" runat="server" Font-Size="9pt" Text="删除" OnClick="Button2_Click" />

6.鼠标移到GridView某一行时改变该行的背景色方法一：

效果图： 做法： 双击GridView的OnRowDataBound事件； 在后台的GridView1_RowDataBound()方法添加代码，最后代码如下所示： protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)     {         int i;         //执行循环，保证每条数据都可以更新         for (i = 0; i < GridView1.Rows.Count; i++)         {             //首先判断是否是数据行             if (e.Row.RowType == DataControlRowType.DataRow)             {                 //当鼠标停留时更改背景色                 e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor=‘#00A9FF‘");                 //当鼠标移开时还原背景色                 e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");             }         }

    }

前台代码： <html xmlns="http://www.w3.org/1999/xhtml" > < head runat="server">     <title>实现鼠标划过改变GridView的行背景色 清清月儿http://blog.csdn.net/21aspnet </title> < /head> < body>     <form id="form1" runat="server">     <div>         <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="身份证号码"             DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">             <Columns>                 <asp:BoundField DataField="身份证号码" HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" />                 <asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名" />                 <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址" />                 <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />             </Columns>             <FooterStyle BackColor="White" ForeColor="#000066" />             <RowStyle ForeColor="#000066" />             <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />             <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />             <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />         </asp:GridView>         <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:北风贸易ConnectionString1 %>"             SelectCommand="SELECT top 5 [身份证号码], [姓名], [员工性别], [家庭住址], [邮政编码] FROM [飞狐工作室]" DataSourceMode="DataReader"></asp:SqlDataSource>         </div>     </form> < /body> < /html>

7.鼠标移到GridView某一行时改变该行的背景色方法二：

效果图：

做法：和上面的一样就是代码不同 protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)     {         //int i;         ////执行循环，保证每条数据都可以更新         //for (i = 0; i < GridView1.Rows.Count; i++)         //{         //    //首先判断是否是数据行         //    if (e.Row.RowType == DataControlRowType.DataRow)         //    {         //        //当鼠标停留时更改背景色         //        e.Row.Attributes.Add("onmouseover", "c=this.style.backgroundColor;this.style.backgroundColor=‘#00A9FF‘");         //        //当鼠标移开时还原背景色         //        e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=c");         //    }         //}         //如果是绑定数据行         if (e.Row.RowType == DataControlRowType.DataRow)         {             //鼠标经过时，行背景色变             e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor=‘#E6F5FA‘");             //鼠标移出时，行背景色变             e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=‘#FFFFFF‘");         }

    }

8.GridView实现删除时弹出确认对话框：

效果图：

实现方法： 双击GridView的OnRowDataBound事件； 在后台的GridView1_RowDataBound()方法添加代码，最后代码如下所示：
    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)     {         //如果是绑定数据行         if (e.Row.RowType == DataControlRowType.DataRow)         {              if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)             {                 ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm(‘你确认要删除：\"" + e.Row.Cells[1].Text + "\"吗?‘)");             }         }

    }

9.GridView实现自动编号：

效果图：

实现方法： 双击GridView的OnRowDataBound事件； 在后台的GridView1_RowDataBound()方法添加代码，最后代码如下所示：     protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)     {         //如果是绑定数据行 //清清月儿http://blog.csdn.net/21aspnet          if (e.Row.RowType == DataControlRowType.DataRow)         {             ////鼠标经过时，行背景色变             //e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor=‘#E6F5FA‘");             ////鼠标移出时，行背景色变             //e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=‘#FFFFFF‘");

            ////当有编辑列时，避免出错，要加的RowState判断             //if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)             //{             //    ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm(‘你确认要删除：\"" + e.Row.Cells[1].Text + "\"吗?‘)");             //}

        }         if (e.Row.RowIndex != -1)         {             int id = e.Row.RowIndex + 1;             e.Row.Cells[0].Text = id.ToString();         }

    }

注意这时最好把前台的第一列的表头该为“编号”，因为以前的第一列被“吃掉”了。 <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"                         OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">                         <FooterStyle BackColor="White" ForeColor="#000066" />                         <Columns>                             <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />                             <asp:BoundField DataField="姓名" HeaderText="用户姓名" />                             <asp:BoundField DataField="员工性别" HeaderText="性别" />                             <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />                             <asp:CommandField HeaderText="选择" ShowSelectButton="True" />                             <asp:CommandField HeaderText="编辑" ShowEditButton="True" />                             <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />                         </Columns>                         <RowStyle ForeColor="#000066" />                         <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />                         <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />                         <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />                     </asp:GridView>

10.GridView实现自定义时间货币等字符串格式：

效果图： 图1-未格式化前 图2-格式化后 解决方法： 在asp.net 2.0中，如果要在绑定列中显示比如日期格式等，如果用下面的方法是显示不了的

<asp :BoundField DataField="CreationDate" DataFormatString="{0:M-dd-yyyy}" HeaderText="CreationDate" />

主要是由于htmlencode属性默认设置为true,已防止XSS攻击，安全起见而用的，所以，可以有以下两种方法解决

1、

<asp :GridView ID="GridView1" runat="server"> < columns> < asp :BoundField DataField="CreationDate" DataFormatString="{0:M-dd-yyyy}" HtmlEncode="false" HeaderText="CreationDate" /> < /columns> < /asp>

将htmlencode设置为false即可

另外的解决方法为，使用模版列

<asp :GridView ID="GridView3" runat="server" > < columns> < asp :TemplateField HeaderText="CreationDate" > < edititemtemplate> < asp :Label ID="Label1" runat="server" Text=‘<%# Eval("CreationDate", "{0:M-dd-yyyy}") %>‘> < /asp> < /edititemtemplate> < itemtemplate> < asp :Label ID="Label1" runat="server" Text=’<%# Bind("CreationDate", "{0:M-dd-yyyy}") %>‘> < /asp> < /itemtemplate> < /asp> < /columns> < /asp>

前台代码： <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="身份证号码"             DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" CellPadding="3" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound">             <Columns>                 <asp:BoundField DataField="身份证号码" HeaderText="身份证号码" ReadOnly="True" SortExpression="身份证号码" />                 <asp:BoundField DataField="姓名" HeaderText="姓名" SortExpression="姓名" />                 <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />                 <asp:BoundField DataField="出生日期" HeaderText="出生日期" SortExpression="出生日期" />                 <asp:BoundField DataField="起薪" HeaderText="起薪" SortExpression="起薪" />             </Columns>             <FooterStyle BackColor="White" ForeColor="#000066" />             <RowStyle ForeColor="#000066" />             <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />             <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />             <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />         </asp:GridView>         <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:北风贸易ConnectionString1 %>"             SelectCommand="SELECT top 5 [出生日期], [起薪], [身份证号码], [姓名], [家庭住址], [邮政编码] FROM [飞狐工作室]" DataSourceMode="DataReader"></asp:SqlDataSource>

附录-常用格式化公式： {0:C}  货币； {0:D4}由0填充的4个字符宽的字段中显示整数； {0:000.0}四舍五入小数点保留第几位有效数字； {0:N2}小数点保留2位有效数字；{0:N2}%   小数点保留2位有效数字加百分号； {0:D}长日期；{0:d}短日期；{0:yy-MM-dd}   例如07-3-25；；{0:yyyy-MM-dd}  例如2007-3-25

 11.GridView实现用“...”代替超长字符串：

效果图： 解决方法：数据绑定后过滤每一行即可 for (int i = 0; i <= GridView1.Rows.Count - 1; i++)         {             DataRowView mydrv;             string gIntro;             if (GridView1.PageIndex == 0)             {                 mydrv = myds.Tables["飞狐工作室"].DefaultView[i];//表名                 gIntro = Convert.ToString(mydrv["家庭住址"]);//所要处理的字段                 GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);             }             else             {                 mydrv = myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];                 gIntro = Convert.ToString(mydrv["家庭住址"]);                 GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);             }         } 

调用的方法：

    public string SubStr(string sString, int nLeng)     {         if (sString.Length <= nLeng)         {             return sString;         }         string sNewStr = sString.Substring(0, nLeng);         sNewStr = sNewStr + "...";         return sNewStr;     }

后台全部代码： using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page {     SqlConnection sqlcon;     SqlCommand sqlcom;     string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";     protected void Page_Load(object sender, EventArgs e)     {         if (!IsPostBack)         {             ViewState["SortOrder"] = "身份证号码";             ViewState["OrderDire"] = "ASC";             bind();         }     }     protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)     {         GridView1.EditIndex = e.NewEditIndex;         bind();     }     protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)     {         string sqlstr = "delete from 飞狐工作室 where 身份证号码=‘" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "‘";         sqlcon = new SqlConnection(strCon);         sqlcom = new SqlCommand(sqlstr,sqlcon);         sqlcon.Open();         sqlcom.ExecuteNonQuery();         sqlcon.Close();         bind();     }     protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)     {         sqlcon = new SqlConnection(strCon);         string sqlstr = "update 飞狐工作室 set 姓名=‘"             + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "‘,家庭住址=‘"             + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "‘ where 身份证号码=‘"             + GridView1.DataKeys[e.RowIndex].Value.ToString() + "‘";         sqlcom=new SqlCommand(sqlstr,sqlcon);         sqlcon.Open();         sqlcom.ExecuteNonQuery();         sqlcon.Close();         GridView1.EditIndex = -1;         bind();     }     protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)     {         GridView1.EditIndex = -1;         bind();     }     public void bind()     {         string sqlstr = "select top 5 * from 飞狐工作室";         sqlcon = new SqlConnection(strCon);         SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);         DataSet myds = new DataSet();         sqlcon.Open();         myda.Fill(myds, "飞狐工作室");         GridView1.DataSource = myds;         GridView1.DataKeyNames = new string[] { "身份证号码" };         GridView1.DataBind();         for (int i = 0; i <= GridView1.Rows.Count - 1; i++)         {             DataRowView mydrv;             string gIntro;             if (GridView1.PageIndex == 0)             {                 mydrv = myds.Tables["飞狐工作室"].DefaultView[i];                 gIntro = Convert.ToString(mydrv["家庭住址"]);                 GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);             }             else             {                 mydrv = myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];                 gIntro = Convert.ToString(mydrv["家庭住址"]);                 GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);             }         }                 sqlcon.Close();     }     public string SubStr(string sString, int nLeng)     {         if (sString.Length <= nLeng)         {             return sString;         }         string sNewStr = sString.Substring(0, nLeng);         sNewStr = sNewStr + "...";         return sNewStr;     }     protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)     {         //如果是绑定数据行          if (e.Row.RowType == DataControlRowType.DataRow)         {             ////鼠标经过时，行背景色变             //e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor=‘#E6F5FA‘");             ////鼠标移出时，行背景色变             //e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=‘#FFFFFF‘");

            ////当有编辑列时，避免出错，要加的RowState判断             //if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)             //{             //    ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm(‘你确认要删除：\"" + e.Row.Cells[1].Text + "\"吗?‘)");             //}

        }         if (e.Row.RowIndex != -1)         {             int id = e.Row.RowIndex + 1;             e.Row.Cells[0].Text = id.ToString();         }

    } }

 11.GridView一般换行与强制换行：

效果图： 首先设置<asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  ItemStyle-Width="100" /> gridview里有一列绑定的数据很长，显示的时候在一行里面显示，页面拉得很宽。 原因是连续英文段为一个整体导致的，在RowDataBound中添加上了一句e.Row.Cells[2].Style.Add("word-break", "break-all")就可以。

如果要给所有的列增加此属性：  protected void Page_Load(object sender, EventArgs e)     {         //正常换行         GridView1.Attributes.Add("style", "word-break:keep-all;word-wrap:normal");         //下面这行是自动换行         GridView1.Attributes.Add("style", "word-break:break-all;word-wrap:break-word");         if (!IsPostBack)         {              bind();//调用数据绑定即可         }     } 总之：善用CSS的word-break:break-all;word-wrap:break-word属性即可，这个属性是通用的对于顽固的南换行问题都可以解决，不局限于GridView。

 12.GridView显示隐藏某一列： 本方案为月儿独创，不同于网上其他方式，我觉得用一个CheckBox更人性化，这样可以隐藏不必要的列，让用户自己选择需要出现的列，在处理多列时这是一个很好的解决方案！

效果图： 图1-开始 图2-点击显示的CheckBox后

解决方案： public void bind()     {         string sqlstr = "select top 5 * from 飞狐工作室";         sqlcon = new SqlConnection(strCon);         SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);         DataSet myds = new DataSet();         sqlcon.Open();         myda.Fill(myds, "飞狐工作室");         GridView1.DataSource = myds;         GridView1.DataKeyNames = new string[] { "身份证号码" };         GridView1.DataBind();         sqlcon.Close();         GridView1.Columns[3].Visible = false;//一开始隐藏         CheckBox1.Checked = false;//如果不这样后面的代码会把他True     }

双击CheckBox1，在CheckedChanged方法里写上代码，最后代码如下： protected void CheckBox1_CheckedChanged(object sender, EventArgs e)     {          GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;          Response.Write("GridView1的第4列现在的显示隐藏状态是："+GridView1.Columns[3].Visible.ToString());     }

注意：CheckBox1的AutoPostBack要True！

后台全部代码如下：

using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page {     SqlConnection sqlcon;     SqlCommand sqlcom;      string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";     protected void Page_Load(object sender, EventArgs e)     {         if (!IsPostBack)         {             ViewState["SortOrder"] = "身份证号码";             ViewState["OrderDire"] = "ASC";             bind();                    }     }     protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)     {         GridView1.EditIndex = e.NewEditIndex;         bind();     }     protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)     {         string sqlstr = "delete from 飞狐工作室 where 身份证号码=‘" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "‘";         sqlcon = new SqlConnection(strCon);         sqlcom = new SqlCommand(sqlstr,sqlcon);         sqlcon.Open();         sqlcom.ExecuteNonQuery();         sqlcon.Close();         bind();     }     protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)     {         sqlcon = new SqlConnection(strCon);         string sqlstr = "update 飞狐工作室 set 姓名=‘"             + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "‘,家庭住址=‘"             + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "‘ where 身份证号码=‘"             + GridView1.DataKeys[e.RowIndex].Value.ToString() + "‘";         sqlcom=new SqlCommand(sqlstr,sqlcon);         sqlcon.Open();         sqlcom.ExecuteNonQuery();         sqlcon.Close();         GridView1.EditIndex = -1;         bind();     }     protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)     {         GridView1.EditIndex = -1;         bind();     }     public void bind()     {         string sqlstr = "select top 5 * from 飞狐工作室";         sqlcon = new SqlConnection(strCon);         SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);         DataSet myds = new DataSet();         sqlcon.Open();         myda.Fill(myds, "飞狐工作室");         GridView1.DataSource = myds;         GridView1.DataKeyNames = new string[] { "身份证号码" };         GridView1.DataBind();         sqlcon.Close();         GridView1.Columns[3].Visible = false;         CheckBox1.Checked = false;     }     protected void CheckBox1_CheckedChanged(object sender, EventArgs e)     {          GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;          Response.Write("GridView1的第4列现在的显示隐藏状态是："+GridView1.Columns[3].Visible.ToString());     } }
前台代码： <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" > < head runat="server">     <title>GridView显示隐藏列 清清月儿http://blog.csdn.net/21aspnet </title> < /head> < body style="font-size=12px">     <form id="form1" runat="server">     <div>                    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"                         OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >                         <FooterStyle BackColor="White" ForeColor="#000066" />                         <Columns>                             <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />                             <asp:BoundField DataField="姓名" HeaderText="用户姓名" />                             <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />                             <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />                             <asp:CommandField HeaderText="选择" ShowSelectButton="True" />                             <asp:CommandField HeaderText="编辑" ShowEditButton="True" />                             <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />                         </Columns>                         <RowStyle ForeColor="#000066" />                         <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />                         <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />                         <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />                     </asp:GridView>         <asp:CheckBox ID="CheckBox1" runat="server" AutoPostBack="True" Font-Size="12px"             OnCheckedChanged="CheckBox1_CheckedChanged" Text="显示隐藏家庭住址" /></div>     </form> < /body> < /html>

 13.GridView弹出新页面/弹出制定大小位置新窗口：

效果图：

方案一：简单的方法，新窗口不固定大小  <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"                         OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >                         <FooterStyle BackColor="White" ForeColor="#000066" />                         <Columns>                             <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />                             <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />                             <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />                             <asp:HyperLinkField HeaderText="姓名" Text="姓名" DataNavigateUrlFields="姓名" DataNavigateUrlFormatString="Default6.aspx?GoodsID={0}" Target="mainframe" NavigateUrl="~/Default6.aspx" DataTextField="姓名" >                     </asp:HyperLinkField>                             <asp:CommandField HeaderText="选择" ShowSelectButton="True" />                             <asp:CommandField HeaderText="编辑" ShowEditButton="True" />                             <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />                         </Columns>                         <RowStyle ForeColor="#000066" />                         <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />                         <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />                         <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />                     </asp:GridView> DataNavigateUrlFields是链接的字段名，DataNavigateUrlFormatString是路径。

方案二：精确控制弹出窗口大小位置 <asp:HyperLinkColumn DataNavigateUrlField="EmployeeID" DataNavigateUrlFormatString="javascript:varwin=window.open(‘detail.aspx?ID={0}‘,null,‘width=300,height=200‘);window.Close();"        DataTextField="LastName" HeaderText="LastName"></asp:HyperLinkColumn>

使用的是结合javascript的window.open方法，关于window.open的参数网上有很多帖子，本站也有许多参考 弹出窗口大全 http://blog.csdn.net/21aspnet/archive/2004/10/25/150231.aspx   即可！

  14.GridView固定表头(不用javascript只用CSS!，很好用)：

效果图：

代码： <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" > < head runat="server">     <title>GridView固定表头 清清月儿http://blog.csdn.net/21aspnet </title>         <style> .Freezing    {        position:relative ;    table-layout:fixed;    top:expression(this.offsetParent.scrollTop);      z-index: 10;    }

.Freezing th{text-overflow:ellipsis;overflow:hidden;white-space: nowrap;padding:2px;} < /style> </head> < body style="font-size=12px">     <form id="form1" runat="server">     <div style="overflow-y: scroll; height: 200px;width:300px" id="dvBody">                    <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"                         OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1_RowCreated"  >                         <FooterStyle BackColor="White" ForeColor="#000066" />                         <Columns>                             <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />                             <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />                             <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />                             <asp:BoundField DataField="姓名" HeaderText="姓名"  />                                                     </Columns>                         <RowStyle ForeColor="#000066" />                         <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />                         <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>                         <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" CssClass="Freezing"/>                     </asp:GridView>         </div>

    </form> < /body> < /html>

用法：CSS设如上的样式，HeaderStyle加CssClass="Freezing，套住GridView的Div设置高度宽度 <div style="overflow-y: scroll; height: 200px;width:200px" >

15.GridView合并表头多重表头无错完美版（以合并3列3行举例）

效果图：

后台代码： using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; using System.Drawing; public partial class _Default : System.Web.UI.Page {     SqlConnection sqlcon;     SqlCommand sqlcom;     string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";     protected void Page_Load(object sender, EventArgs e)     {         if (!IsPostBack)         {             bind();                     }     }     protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)     {         GridView1.EditIndex = e.NewEditIndex;         bind();     }     protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)     {         sqlcon = new SqlConnection(strCon);         string sqlstr = "update 飞狐工作室 set 姓名=‘"             + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "‘,家庭住址=‘"             + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "‘ where 身份证号码=‘"             + GridView1.DataKeys[e.RowIndex].Value.ToString() + "‘";         sqlcom=new SqlCommand(sqlstr,sqlcon);         sqlcon.Open();         sqlcom.ExecuteNonQuery();         sqlcon.Close();         GridView1.EditIndex = -1;         bind();     }     protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)     {         GridView1.EditIndex = -1;         bind();     }     public void bind()     {         string sqlstr = "select top 10 * from 飞狐工作室";         sqlcon = new SqlConnection(strCon);         SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);         DataSet myds = new DataSet();         sqlcon.Open();         myda.Fill(myds, "飞狐工作室");         GridView1.DataSource = myds;         GridView1.DataKeyNames = new string[] { "身份证号码" };         GridView1.DataBind();         sqlcon.Close();     }

//这里就是解决方案     protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)     {         switch (e.Row.RowType)         {             case DataControlRowType.Header:                 //第一行表头                 TableCellCollection tcHeader = e.Row.Cells;                 tcHeader.Clear();                 tcHeader.Add(new TableHeaderCell());                 tcHeader[0].Attributes.Add("rowspan", "3"); //跨Row                 tcHeader[0].Attributes.Add("bgcolor", "white");                 tcHeader[0].Text = "";                 tcHeader.Add(new TableHeaderCell());                 //tcHeader[1].Attributes.Add("bgcolor", "Red");                 tcHeader[1].Attributes.Add("colspan", "6"); //跨Column                 tcHeader[1].Text = "全部信息</th></tr><tr>";

                //第二行表头                 tcHeader.Add(new TableHeaderCell());                 tcHeader[2].Attributes.Add("bgcolor", "DarkSeaGreen");                 tcHeader[2].Text = "身份证号码";                 tcHeader.Add(new TableHeaderCell());                 tcHeader[3].Attributes.Add("bgcolor", "LightSteelBlue");                 tcHeader[3].Attributes.Add("colspan", "2");                 tcHeader[3].Text = "基本信息";                 tcHeader.Add(new TableHeaderCell());                 tcHeader[4].Attributes.Add("bgcolor", "DarkSeaGreen");                 tcHeader[4].Text = "福利";                 tcHeader.Add(new TableHeaderCell());                 tcHeader[5].Attributes.Add("bgcolor", "LightSteelBlue");                 tcHeader[5].Attributes.Add("colspan", "2");                 tcHeader[5].Text = "联系方式</th></tr><tr>";

                //第三行表头                 tcHeader.Add(new TableHeaderCell());                 tcHeader[6].Attributes.Add("bgcolor", "Khaki");                 tcHeader[6].Text = "身份证号码";                 tcHeader.Add(new TableHeaderCell());                 tcHeader[7].Attributes.Add("bgcolor", "Khaki");                 tcHeader[7].Text = "姓名";                 tcHeader.Add(new TableHeaderCell());                 tcHeader[8].Attributes.Add("bgcolor", "Khaki");                 tcHeader[8].Text = "出生日期";                 tcHeader.Add(new TableHeaderCell());                 tcHeader[9].Attributes.Add("bgcolor", "Khaki");                 tcHeader[9].Text = "薪水";                 tcHeader.Add(new TableHeaderCell());                 tcHeader[10].Attributes.Add("bgcolor", "Khaki");                 tcHeader[10].Text = "家庭住址";                 tcHeader.Add(new TableHeaderCell());                 tcHeader[11].Attributes.Add("bgcolor", "Khaki");                 tcHeader[11].Text = "邮政编码";                 break;         }     } }
前台： <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" > < head runat="server">     <title>GridView合并多重表头表头 清清月儿http://blog.csdn.net/21aspnet </title> < /head> < body >     <form id="form1" runat="server">     <div  >                    <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1_RowEditing"                         OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1_RowCreated"  >                         <FooterStyle BackColor="White" ForeColor="#000066" />                         <Columns>                             <asp:CommandField HeaderText="编辑" ShowEditButton="True" />                             <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />                             <asp:BoundField DataField="姓名" HeaderText="姓名"  />                             <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />                              <asp:BoundField DataField="起薪" HeaderText="起薪"  />                             <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />                             <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />                                                    </Columns>                         <RowStyle ForeColor="#000066" />                         <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />                         <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>                         <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />                     </asp:GridView>         </div>

    </form> < /body> < /html>

16.GridView突出显示某一单元格（例如金额低于多少，分数不及格等）

效果图：

解决方案：主要是绑定后过滤  GridView1.DataBind();         for (int i = 0; i <= GridView1.Rows.Count - 1; i++)         {             DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];             string score = Convert.ToString(mydrv["起薪"]);             if (Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等             {                 GridView1.Rows[i].Cells[4].BackColor = System.Drawing.Color.Red;             }         }         sqlcon.Close();

全部后台代码：

using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; using System.Drawing;

public partial class Default7 : System.Web.UI.Page {     SqlConnection sqlcon;     SqlCommand sqlcom;     string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";     protected void Page_Load(object sender, EventArgs e)     {         if (!IsPostBack)         {             bind();

        }     }     protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)     {         GridView1.EditIndex = e.NewEditIndex;         bind();     }     protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)     {         sqlcon = new SqlConnection(strCon);         string sqlstr = "update 飞狐工作室 set 姓名=‘"             + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "‘,家庭住址=‘"             + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "‘ where 身份证号码=‘"             + GridView1.DataKeys[e.RowIndex].Value.ToString() + "‘";         sqlcom = new SqlCommand(sqlstr, sqlcon);         sqlcon.Open();         sqlcom.ExecuteNonQuery();         sqlcon.Close();         GridView1.EditIndex = -1;         bind();     }     protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)     {         GridView1.EditIndex = -1;         bind();     }     public void bind()     {         string sqlstr = "select top 10 * from 飞狐工作室";         sqlcon = new SqlConnection(strCon);         SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);         DataSet myds = new DataSet();         sqlcon.Open();         myda.Fill(myds, "飞狐工作室");         GridView1.DataSource = myds;         GridView1.DataKeyNames = new string[] { "身份证号码" };         GridView1.DataBind();         for (int i = 0; i <= GridView1.Rows.Count - 1; i++)         {             DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];             string score = Convert.ToString(mydrv["起薪"]);             if (Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等
            {                 GridView1.Rows[i].Cells[4].BackColor = System.Drawing.Color.Red;             }         }         sqlcon.Close();     } }

前台代码：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" > < head id="Head1" runat="server">     <title>GridView突出显示某一单元格 清清月儿http://blog.csdn.net/21aspnet </title> < /head> < body >     <form id="form1" runat="server">     <div  >                    <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1_RowEditing"                         OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >                         <FooterStyle BackColor="White" ForeColor="#000066" />                         <Columns>                             <asp:CommandField HeaderText="编辑" ShowEditButton="True" />                             <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />                             <asp:BoundField DataField="姓名" HeaderText="姓名"  />                             <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />                              <asp:BoundField DataField="起薪" HeaderText="起薪"  DataFormatString="{0:C}" HtmlEncode="false"/>                             <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />                             <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />                                                    </Columns>                         <RowStyle ForeColor="#000066" />                         <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />                         <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>                         <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />                     </asp:GridView>         </div>

    </form> < /body> < /html>

 17.GridView加入自动求和求平均值小计

效果图： 解决方案：     private double sum = 0;//取指定列的数据和，你要根据具体情况对待可能你要处理的是int protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)     {                 if (e.Row.RowIndex >= 0)         {             sum += Convert.ToDouble(e.Row.Cells[6].Text);         }         else if (e.Row.RowType == DataControlRowType.Footer)         {             e.Row.Cells[5].Text = "总薪水为：";             e.Row.Cells[6].Text = sum.ToString();             e.Row.Cells[3].Text = "平均薪水为：";             e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();                     }     }

后台全部代码： using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; using System.Drawing;

public partial class Default7 : System.Web.UI.Page {     SqlConnection sqlcon;     SqlCommand sqlcom;     string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";     protected void Page_Load(object sender, EventArgs e)     {         if (!IsPostBack)         {             bind();

        }     }     protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)     {         GridView1.EditIndex = e.NewEditIndex;         bind();     }     protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)     {         sqlcon = new SqlConnection(strCon);         string sqlstr = "update 飞狐工作室 set 姓名=‘"             + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "‘,家庭住址=‘"             + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "‘ where 身份证号码=‘"             + GridView1.DataKeys[e.RowIndex].Value.ToString() + "‘";         sqlcom = new SqlCommand(sqlstr, sqlcon);         sqlcon.Open();         sqlcom.ExecuteNonQuery();         sqlcon.Close();         GridView1.EditIndex = -1;         bind();     }     protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)     {         GridView1.EditIndex = -1;         bind();     }     public void bind()     {         string sqlstr = "select top 5 * from 飞狐工作室";         sqlcon = new SqlConnection(strCon);         SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);         DataSet myds = new DataSet();         sqlcon.Open();         myda.Fill(myds, "飞狐工作室");         GridView1.DataSource = myds;         GridView1.DataKeyNames = new string[] { "身份证号码" };         GridView1.DataBind();         sqlcon.Close();     }     private double sum = 0;//取指定列的数据和     protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)     {                 if (e.Row.RowIndex >= 0)         {             sum += Convert.ToDouble(e.Row.Cells[6].Text);         }         else if (e.Row.RowType == DataControlRowType.Footer)         {             e.Row.Cells[5].Text = "总薪水为：";             e.Row.Cells[6].Text = sum.ToString();             e.Row.Cells[3].Text = "平均薪水为：";             e.Row.Cells[4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();                     }     } } 前台：唯一的花头就是设置ShowFooter="True" ，否则默认表头为隐藏的！ <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1_RowEditing"                         OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound" ShowFooter="True"  >                         <FooterStyle BackColor="White" ForeColor="#000066" />                         <Columns>                             <asp:CommandField HeaderText="编辑" ShowEditButton="True" />                             <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />                             <asp:BoundField DataField="姓名" HeaderText="姓名"  />                             <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />                             <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />                             <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />                             <asp:BoundField DataField="起薪" HeaderText="起薪"  />                                                    </Columns>                         <RowStyle ForeColor="#000066" />                         <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />                         <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>                         <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />                     </asp:GridView>

 18.GridView数据导入Excel/Excel数据读入GridView

效果图：

解决方案： 页面增加一个按钮，单击事件添加如下方法： protected void Button1_Click(object sender, EventArgs e)     {         Export("application/ms-excel", "学生成绩报表.xls");     }

    private void Export(string FileType, string FileName)     {         Response.Charset = "GB2312";         Response.ContentEncoding = System.Text.Encoding.UTF7;         Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());         Response.ContentType = FileType;         this.EnableViewState = false;         StringWriter tw = new StringWriter();         HtmlTextWriter hw = new HtmlTextWriter(tw);         GridView1.RenderControl(hw);         Response.Write(tw.ToString());         Response.End();     } //如果没有下面方法会报错类型“GridView”的控件“GridView1”必须放在具有 runat=server 的窗体标记内     public override void VerifyRenderingInServerForm(Control control)     {     } 还有由于是文件操作所以要引入名称空间IO和Text

后台代码： using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; using System.Drawing; using System.IO; using System.Text; public partial class Default7 : System.Web.UI.Page {     SqlConnection sqlcon;     SqlCommand sqlcom;     string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";     protected void Page_Load(object sender, EventArgs e)     {         if (!IsPostBack)         {             bind();

        }     }         public void bind()     {         string sqlstr = "select top 5 * from 飞狐工作室";         sqlcon = new SqlConnection(strCon);         SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);         DataSet myds = new DataSet();         sqlcon.Open();         myda.Fill(myds, "飞狐工作室");         GridView1.DataSource = myds;         GridView1.DataKeyNames = new string[] { "身份证号码" };         GridView1.DataBind();         sqlcon.Close();     }

    protected void Button1_Click(object sender, EventArgs e)     {         Export("application/ms-excel", "学生成绩报表.xls");     }

    private void Export(string FileType, string FileName)     {         Response.Charset = "GB2312";         Response.ContentEncoding = System.Text.Encoding.UTF7;         Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());         Response.ContentType = FileType;         this.EnableViewState = false;         StringWriter tw = new StringWriter();         HtmlTextWriter hw = new HtmlTextWriter(tw);         GridView1.RenderControl(hw);         Response.Write(tw.ToString());         Response.End();     }     public override void VerifyRenderingInServerForm(Control control)     {     }     }

前台： <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"                           BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"   >                         <FooterStyle BackColor="White" ForeColor="#000066" />                         <Columns>                             <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />                             <asp:BoundField DataField="姓名" HeaderText="姓名"  />                             <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />                             <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />                             <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />                             <asp:BoundField DataField="起薪" HeaderText="起薪"  />                                                    </Columns>                         <RowStyle ForeColor="#000066" />                         <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />                         <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>                         <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />                     </asp:GridView>         <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="导出" />

读取Excel数据的代码：这个很简单的 private DataSet CreateDataSource()     {         string strCon;         strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("excel.xls") + "; Extended Properties=Excel 8.0;";         OleDbConnection olecon = new OleDbConnection(strCon);         OleDbDataAdapter myda = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", strCon);         DataSet myds = new DataSet();         myda.Fill(myds);         return myds;     }     protected void Button1_Click(object sender, EventArgs e)     {         GridView1.DataSource = CreateDataSource();         GridView1.DataBind();     }

Asp.net中GridView使用详解(引)

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原文地址：http://www.cnblogs.com/raowenbin/p/4039465.html