pop up window in asp.net page

Hi,

you can make use of window.open method.
refer the below articles.
MSDN-open method (Windows)[^]
HtmlWindow.Open Method (Uri, String, String, Boolean)[^]
How to open a popup window from C# code behind[^]

hope it helps.

First you add Ajax toolkit dll in your Application. After that use the

<asp:ModalPopupExtender ID="ModalPopupExtender1" runat="server" TargetControlID="Gdvwratebtn"
                                            BackgroundCssClass="modalBackground" PopupControlID="ratepopup" DropShadow="true">
                                        </asp:ModalPopupExtender>

and
create the asp button & panels
inside of panel use asp all controls as your wish
**TargetControlID="Gdvwratebtn" is the Button ID
**PopupControlID="ratepopup" is the Panel ID