I had not found a alternative for asp:updatepanel.update() in RadAjaxPanel
How the senario is possible with RadAjaxpanel
Bellow is a code sample
<
asp:UpdatePanel
ID
=
"updatePanelSearch"
runat
=
"server"
UpdateMode
=
"Conditional"
>
<
ContentTemplate
>
<
asp:Label
ID
=
"Label1"
runat
=
"server"
Text
=
"Search"
></
asp:Label
>
<
telerik:RadTextBox
ID
=
"radtxtSearch"
runat
=
"server"
>
</
telerik:RadTextBox
>
<
asp:ImageButton
ID
=
"imgbtnSearch"
runat
=
"server"
ImageUrl
=
"~/Images/Search.png"
OnClick
=
"imgbtnSearch_Click"
/>
</
ContentTemplate
>
</
asp:UpdatePanel
>
<
asp:UpdatePanel
ID
=
"updatePanelGrid"
runat
=
"server"
UpdateMode
=
"Conditional"
>
<
ContentTemplate
>
<
asp:PlaceHolder
ID
=
"phGrid"
runat
=
"server"
></
asp:PlaceHolder
>
</
ContentTemplate
>
</
asp:UpdatePanel
>
protected
void
imgbtnSearch_Click(
object
sender, ImageClickEventArgs e)
{
updatePanelGrid.Update();
/*Update Grid*/
..........
/**/
}