Question

.net中点击全选按钮实现GridView中复选框全选

如题

Answer 1

双击button事件写如下代码就可以了 for (int i=0; i < this.GridView1.Rows.Count; i++)
{
CheckBox chk =(CheckBox) this.GridView1.Rows[i].FindControl("CheckBox1");
chk .Checked =true ;
}

Answer 2

用一段JavaScript就能搞定
<script type="text/javascript">
function selectAll(chk)
{
var items=document.getElementsByTagName("input");
for(var i=0;i<items.length;i++)
{
if(items[i].type=="checkbox")
{
items[i].checked=chk.checked;
}
}
}
</script> 在那代码段加事件 <Columns>
<asp:TemplateField>
<HeaderTemplate>
<asp:Button ID="Button3" runat="server" onclick="selectAll(this)" Text=" 全选" />
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="Id" HeaderText="Id" SortExpression="Id" />
<asp:BoundField DataField="Id" HeaderText="Id" SortExpression="Id" />
<asp:BoundField DataField="Id" HeaderText="Id" SortExpression="Id" />
<asp:BoundField DataField="Id" HeaderText="Id" SortExpression="Id" />

</Columns>