GridView控件修改、删除例子,修改时含有DropDownList控件。
示例运行效果图:
GridViewUp.aspx文件代码:
- <%@ Page Language="C#" AutoEventWireup="true" CodeFile="GridViewUp.aspx.cs" Inherits="gridview_GridViewUp" %>
-
- <!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>无标题页</title>
- </head>
- <body>
- <form id="form1" runat="server">
- <div>
- <table cellpadding="0" cellspacing="0" border="0" width="80%" style="font-size: 11px">
- <tr>
- <td align="center">
- <asp:GridView ID="GridView1" runat="server" Width="100%" CellPadding="4" ForeColor="#333333"
- AutoGenerateColumns="False" AllowPaging="True" PageSize="12" OnRowCancelingEdit="GridView1_RowCancelingEdit"
- OnRowEditing="GridView1_RowEditing" OnRowUpdating="GridView1_RowUpdating" OnRowDeleting="GridView1_RowDeleting"
- DataKeyNames="id,name" OnPageIndexChanging="GridView1_PageIndexChanging" DataMember="card,price" OnRowDataBound="GridView1_RowDataBound" GridLines="None">
- <Columns>
- <asp:BoundField HeaderText="身份证号" DataField="card" Visible=false />
- <asp:BoundField HeaderText="编号" DataField="id" ReadOnly="True" />
- <asp:BoundField DataField="name" HeaderText="姓名" ReadOnly="True" />
- <asp:TemplateField HeaderText="身份证号">
- <ItemTemplate>
- <%# Eval("card") %>
- </ItemTemplate>
- <EditItemTemplate>
- <asp:TextBox ID="TBCard" Text=‘<%# Eval("card") %>‘ runat="server" Width="140px" />
- </EditItemTemplate>
- <ItemStyle Width="150px" />
- </asp:TemplateField>
- <asp:TemplateField HeaderText="学历">
- <ItemTemplate>
- <%# Eval("description")%>
- </ItemTemplate>
- <EditItemTemplate>
- <asp:HiddenField ID="HDFXueli" runat="server" Value=‘<%# Eval("xueli") %>‘ />
- <asp:DropDownList ID="DDLXueli" runat="server" Width="90px" />
- </EditItemTemplate>
- <ItemStyle Width="100px" />
- </asp:TemplateField>
- <asp:TemplateField HeaderText="价格">
- <ItemTemplate>
- <%# Eval("price") %>
- </ItemTemplate>
- <EditItemTemplate>
- <asp:TextBox ID="TBPrice" Text=‘<%# Eval("price") %>‘ runat="server" Width="90px" />
- </EditItemTemplate>
- <ItemStyle Width="100px" />
- </asp:TemplateField>
- <asp:BoundField HeaderText="建立时间" DataField="createdate" ReadOnly="True" />
- <asp:CommandField ShowDeleteButton="True" ShowEditButton="True" HeaderText="操作" />
- </Columns>
- <PagerSettings FirstPageText="" LastPageText="" NextPageText="" PreviousPageText="" />
- <RowStyle Height="20px" BackColor="#F7F6F3" ForeColor="#333333" />
- <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
- <EditRowStyle BackColor="#999999" />
- <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
- <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
- <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
- <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
- </asp:GridView>
- </td>
- </tr>
- </table>
- </div>
- </form>
- </body>
- </html>
GridViewUp.aspx.cs文件代码:
- 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 gridview_GridViewUp : System.Web.UI.Page
- {
- protected void Page_Load(object sender, EventArgs e)
- {
- if (!IsPostBack)
- {
- GridViewBind();
- }
- }
-
- protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
- {
- GridView1.PageIndex = e.NewPageIndex;
- GridViewBind();
- }
-
- private void GridViewBind()
- {
- string connStr = ConfigurationManager.ConnectionStrings["ConnString"].ConnectionString;
- string SqlStr = "SELECT a.*,b.description FROM test01 a,xueli b where a.xueli=b.code and a.id<1000 and a.id>200";
- DataSet ds = new DataSet();
-
- try
- {
- SqlConnection conn = new SqlConnection(connStr);
- if (conn.State.ToString() == "Closed") conn.Open();
- SqlDataAdapter da = new SqlDataAdapter(SqlStr, conn);
- da.Fill(ds, "test01");
- if (conn.State.ToString() == "Open") conn.Close();
-
- GridView1.DataSource = ds.Tables[0].DefaultView;
- GridView1.DataBind();
- }
- catch (Exception ex)
- {
- Response.Write("数据库错误,错误原因:" + ex.Message);
- Response.End();
- }
- }
-
- protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
- {
- if (((DropDownList)e.Row.FindControl("DDLXueli")) != null)
- {
- DropDownList ddlxueli = (DropDownList)e.Row.FindControl("DDLXueli");
-
-
- string connStr = ConfigurationManager.ConnectionStrings["ConnString"].ConnectionString;
- string SqlStr = "SELECT * from xueli";
- DataSet ds = new DataSet();
-
- SqlConnection conn = new SqlConnection(connStr);
- if (conn.State.ToString() == "Closed") conn.Open();
- SqlDataAdapter da = new SqlDataAdapter(SqlStr, conn);
- da.Fill(ds, "xueli");
- if (conn.State.ToString() == "Open") conn.Close();
-
- ddlxueli.DataSource = ds.Tables[0].DefaultView;
- ddlxueli.DataTextField = "description";
- ddlxueli.DataValueField = "code";
- ddlxueli.DataBind();
-
-
-
- ddlxueli.SelectedValue = ((HiddenField)e.Row.FindControl("HDFXueli")).Value;
-
- }
- }
-
- protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
- {
- GridView1.EditIndex = e.NewEditIndex;
- GridViewBind();
- }
- protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
- {
- GridView1.EditIndex = -1;
- GridViewBind();
- }
-
- protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
- {
- string id = GridView1.DataKeys[e.RowIndex].Values[0].ToString();
- string card = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("TBCard")).Text;
- string xueli = ((DropDownList)GridView1.Rows[e.RowIndex].FindControl("DDLXueli")).SelectedValue;
- string price = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("TBPrice")).Text;
-
- string connStr = ConfigurationManager.ConnectionStrings["ConnString"].ConnectionString;
- string SqlStr = "update test01 set card=‘" + card + "‘,xueli=‘" + xueli + "‘,price=‘" + price + "‘ where id=" + id;
-
- try
- {
- SqlConnection conn = new SqlConnection(connStr);
- if (conn.State.ToString() == "Closed") conn.Open();
- SqlCommand comm = new SqlCommand(SqlStr, conn);
- comm.ExecuteNonQuery();
- comm.Dispose();
- if (conn.State.ToString() == "Open") conn.Close();
-
- GridView1.EditIndex = -1;
- GridViewBind();
- }
- catch (Exception ex)
- {
- Response.Write("数据库错误,错误原因:" + ex.Message);
- Response.End();
- }
- }
-
- protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
- {
- string id = GridView1.DataKeys[e.RowIndex].Values[0].ToString();
- string connStr = ConfigurationManager.ConnectionStrings["ConnString"].ConnectionString;
- string SqlStr = "delete from test01 where id=" + id;
-
- try
- {
- SqlConnection conn = new SqlConnection(connStr);
- if (conn.State.ToString() == "Closed") conn.Open();
- SqlCommand comm = new SqlCommand(SqlStr, conn);
- comm.ExecuteNonQuery();
- comm.Dispose();
- if (conn.State.ToString() == "Open") conn.Close();
-
- GridView1.EditIndex = -1;
- GridViewBind();
- }
- catch (Exception ex)
- {
- Response.Write("数据库错误,错误原因:" + ex.Message);
- Response.End();
- }
- }
- }
sql server生成表代码:
- CREATE TABLE [dbo].[test01] (
- [id] [decimal](18, 0) IDENTITY (1, 1) NOT NULL ,
- [name] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
- [card] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
- [xueli] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
- [price] [decimal](18, 0) NULL ,
- [createdate] [datetime] NULL
- ) ON [PRIMARY]
- GO
-
- ALTER TABLE [dbo].[test01] ADD
- CONSTRAINT [DF_test01_createdate] DEFAULT (getdate()) FOR [createdate],
- CONSTRAINT [PK_test01] PRIMARY KEY CLUSTERED
- (
- [id]
- ) ON [PRIMARY]
- GO
-
- CREATE TABLE [dbo].[xueli](
- [id] [int] IDENTITY(1,1) NOT NULL,
- [code] [int] NULL,
- [description] [nvarchar](50) COLLATE Chinese_PRC_CI_AS NULL,
- CONSTRAINT [PK_xueli] PRIMARY KEY CLUSTERED
- (
- [id] ASC
- )WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]
- ) ON [PRIMARY]
-
- xueli表中的数据:
- id code description
- 1 1 博士
- 2 2 硕士
- 3 3 学士