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转载于：http://www.cnblogs.com/oec2003/archive/2007/11/09/954798.html
用服务器端的方法：
在页面上放一个gridview控件，配置好数据源，编辑列，添加一个模版列，再编辑模版，放入一个checkbox控件。代码如下：
<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AutoGenerateColumns="False" DataKeyNames="AreaID" DataSourceID="SqlDataSource1"> <Columns> <asp:BoundField DataField="AreaID" HeaderText="AreaID" ReadOnly="True" SortExpression="AreaID" /> <asp:BoundField DataField="CityID" HeaderText="CityID" SortExpression="CityID" /> <asp:TemplateField> <HeaderTemplate> <asp:CheckBox ID="chkAll" runat="server" AutoPostBack="True" OnCheckedChanged="chkAll_CheckedChanged" /> </HeaderTemplate> <ItemTemplate> <asp:CheckBox ID="chkItem" runat="server" /> </ItemTemplate> </asp:TemplateField> </Columns> </asp:GridView>
后台cs代码：
protected void chkAll_CheckedChanged(object sender, EventArgs e) { for (int i = 0; i < this.GridView1.Rows.Count; i++) { ((CheckBox)GridView1.Rows[i].FindControl("chkItem")).Checked = ((CheckBox)this.GridView1.HeaderRow.FindControl("chkAll")).Checked; } }
用脚本实现：
<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AutoGenerateColumns="False" DataKeyNames="AreaID" DataSourceID="SqlDataSource1"> <Columns> <asp:BoundField DataField="AreaID" HeaderText="AreaID" ReadOnly="True" SortExpression="AreaID" /> <asp:BoundField DataField="CityID" HeaderText="CityID" SortExpression="CityID" /> <asp:TemplateField> <HeaderTemplate> <input id="chkAll" onclick="SelectAll(this)"; type=checkbox> </HeaderTemplate> <ItemTemplate> <input id="chkItem" type=checkbox> </ItemTemplate> </asp:TemplateField> </Columns> </asp:GridView>
在客户端写javascript
function SelectAll(chkbox) { var box=chkbox; state=theBox.checked; elem=box.form.elements; for(i=0;i<elem.length;i++) if(elem[i].type=="checkbox" && elem[i].id!=box.id) { if(elem[i].checked!=state) { elem[i].click(); } } }
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原文地址：http://www.cnblogs.com/Tirisfal/p/4777590.html
