How to refresh parent page on closing of Pop Up Window, RadGrid

In this, I will show you how to can refresh a RadGrid control on the parent page, from a pop up window when it is closed.

Main Page.aspx <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" nablePageHeadUpdate="False" EnableAJAX="true"> </telerik:RadAjaxManager> function ShowInsertForm() { var manager = window.radopen("PopUp.aspx", "PopUp"); manager.setSize(650, 325); manager.set_visibleStatusbar(false); manager.center(); manager.SetActive(); return false; } function RefreshGrid(arg) {  if (!arg)  {   var AjaxManager = $find("<%= RadAjaxManager.GetCurrent(Page).ClientID %>");   if (AjaxManager != null)   AjaxManager.ajaxRequest("Rebind");  } else  {   var AjaxManager = $find("<%= RadAjaxManager.GetCurrent(Page).ClientID %>");   if (AjaxManager != null)   AjaxManager.ajaxRequest("RebindAndNavigate");  } } <telerik:RadWindowManager ID="RadWindowManager2" runat="server" EnableShadow="false" OnClientPageLoad="OnClientPageLoad" VisibleStatusbar="false">         <Windows>             <telerik:RadWindow ID="PopUp" runat="server" Title="Popup window" ReloadOnShow="true" Behaviors="Maximize,Close,Minimize,Move,Pin" ShowContentDuringLoad="false" Modal="true">             </telerik:RadWindow>         </Windows>     </telerik:RadWindowManager>

MainPage.aspx.cs   //Register the AjaxManager here protected void Page_Load(object sender, EventArgs e) {   RadAjaxManager manager = RadAjaxManager.GetCurrent(Page);   manager.AjaxRequest += new     RadAjaxControl.AjaxRequestDelegate(RadAjaxManager1_AjaxRequest); } protected void RadAjaxManager1_AjaxRequest(object sender, AjaxRequestEventArgs e) {  if (e.Argument == " CloseAndRebind ")  {   // Refresh /Reload the grid control here  } }

Popup.aspx <telerik:RadScriptManager ID="RadScriptManagerPopUp" runat="server" ></telerik:RadScriptManager>       <script type="text/javascript">           function CloseAndRebind(args) {               GetRadWindow().BrowserWindow.refreshGrid(args);               GetRadWindow().close();           }           function GetRadWindow() {               var oWindow = null;               if (window.radWindow)                   oWindow = window.radWindow;                   //Will work in Moz in all cases, including clasic dialog                              else if (window.frameElement.radWindow)                   oWindow = window.frameElement.radWindow;               //IE (and Moz as well)                              return oWindow;           }           function CancelEdit() {               GetRadWindow().close();           }     </script>

Popup.aspx.cs private void Close() {  ClientScript.RegisterStartupScript(Page.GetType(), "mykey", "CloseAndRebind();", true); }