客户端实现GridView全选全不选

Code:

1. <script type="text/javascript">   
2. function
3.     {   
4. var checks = document.getElementById('<%=GridView1.ClientID %>');   
5. if(sender.checked)   
6.         {   
7.             alert(checks.rows.length.toString());   
8. for(var
9.             {   
10. var ch = checks.rows[i].cells[0].getElementsByTagName("input")[0];   
11. true;   
12.             }   
13.         }   
14. else
15.         {   
16. for(var
17.             {   
18. "input")[0].checked = false;   
19.             }   
20.         }   
21.     }   
22.     </script>

GridView：

Code:

1. <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="True"
2. DataKeyNames="sid" DataSourceID="SqlDataSource1">
3. <Columns>
4. <asp:TemplateField>
5. <HeaderTemplate>
6. <input ID="Checkbox1" runat="server" onclick="change(this);" type="checkbox" /></HeaderTemplate>
7. <ItemTemplate>
8. <asp:CheckBox ID="CheckBox2" runat="server" AutoPostBack="True"
9. />
10. </ItemTemplate>
11. </asp:TemplateField>
12. </Columns>
13. </asp:GridView>