How to create Sharepoint 2010 Modal Dialog Pop up ( Popup with Faded Background )

Many a times we have a requirement like we need to open a Pop-up with the Faded Background. Sharepoint 2010 has provided us a very simple way to achieve this.

Below is the JavaScript with the help of which we can open a Modal Dailog Pop Up of Sharepoint 2010.

<script type="text/javascript">

     function OpenDialog(URL) {

         var NewPopUp = SP.UI.$create_DialogOptions();

         NewPopUp.url = URL;

         NewPopUp.width = 700;

         NewPopUp.height = 350;

         SP.UI.ModalDialog.showModalDialog(NewPopUp);

     }

 </script>

Call the Javascript on Button click and the modal PopUp will pops up with the Page of Specified URL.

btnOpenPopUp.Attributes.Add("onClick", "javascript:OpenDialog(‘/_layouts/MyAppPage/MyPage.aspx’);");