一般使用带有gridview的modalextenderpopup控件，如下所示：

use modalextenderpopup control with gridview in general as the following:

<cc1:ModalPopupExtender ID="mpeRejectPopup" runat="server" BehaviorID="modelPopupExtender3"
    TargetControlID="hdnWindow" PopupControlID="divRejected" DropShadow="True" OnCancelScript="ResetPopUp(); return false;"
    CancelControlID="btnCancel" Enabled="true" BackgroundCssClass="ModalBackground" />

divRejected这是包含控件的DIV控件将在弹出扩展器中显示。



使用updatepanel到postpack页面。

divRejected this is DIV control contain controls will show in popup extender.

use updatepanel to postpack page.