GridView分组全选CheckBox

脚本为网上搜的(个人认为很牛,针对不太会js和ajax的新手,多项分组全选实现起来最为简单),来源忘了，抱歉@@
基本上HeaderTemplate采用客户端,ItemTemplate为服务端
javascript脚本：

    <script type="text/javascript">
       function selectAll(obj)
       {
           var theTable = obj.parentElement.parentElement.parentElement;
           var i;
           var j = obj.parentElement.cellIndex;
        
           for(i=0;i<theTable.rows.length;i++)
           {
               var objCheckBox = theTable.rows[i].cells[j].firstChild;
               if(objCheckBox.checked!=null)objCheckBox.checked = obj.checked;
           }
       }
    </script>

GridView范例：

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" PageSize="20"
            Width="100%" OnRowDataBound="GridView1_RowDataBound">
            <Columns>
                <asp:BoundField DataField="EMP_ID" HeaderText="员工编号" />
                <asp:BoundField DataField="EMP_NO" HeaderText="员工工号" />
                <asp:BoundField DataField="emp_name" HeaderText="员工姓名" />
                <asp:BoundField DataField="dept_name" HeaderText="部门名称" />
                <asp:BoundField DataField="grp_name" HeaderText="班组名称" />
                <asp:TemplateField HeaderText="绩效奖金">
                    <HeaderTemplate>
                        <input id="CheckAll" type="checkbox" onclick="selectAll(this);" />
                        绩效奖金
                    </HeaderTemplate>
                    <ItemTemplate>
                        <asp:CheckBox ID="inputChkAaa" runat="server" />
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField>
                    <HeaderTemplate>
                        <input id="CheckAll" type="checkbox" onclick="selectAll(this);" />
                        加班奖金
                    </HeaderTemplate>
                    <ItemTemplate>
                        <asp:CheckBox ID="inputChkBbb" runat="server" />
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="周末奖金">
                    <HeaderTemplate>
                        <input id="CheckAll" type="checkbox" onclick="selectAll(this);" />
                        加班奖金
                    </HeaderTemplate>
                    <ItemTemplate>
                        <asp:CheckBox ID="inputChkCcc" runat="server" />
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
</asp:GridView>

至于后台.CS该做什么,仍然做什么,例如可在页面装载时显示员工本身所属奖金系统等等,不多说了