DataGrid中全选无刷新的方法

           //javascript
           function SelectAll(Items)
           {
                var i;
                var item=null;
                var    flag=window.event.srcElement.checked;
                if(!Items)
                    return;
                if(!Items.length)
                    Items.checked=flag;
                else
                {
                    for(i=0;i<Items.length;i++)
                    Items[i].checked = flag;
                }
       }

//全选按钮里面的事件
<asp:CheckBox ID="CheckAll_chk" runat="server" Text="全选" AutoPostBack="false" onClick="javascript:SelectAll(this.form)" />

其中的全选按钮是模板列中的控件