Hi, Me too had similar problem. Try using following code private void ShowMessage(string message) { //This code works if there's no UpdatePanel //string script = "<script type=\"text/javascript\">alert('" + message + "');</script>"; //Page.ClientScript.RegisterStartupScript(this.GetType(), new Guid().ToString(), script); //Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler); // We must do something slightly different with an UpdatePanel string jScript = "alert('" + message + "');"; ScriptManager.RegisterClientScriptBlock(UpdatePanelNewsLetter, UpdatePanelNewsLetter.GetType(), new Guid().ToString(), jScript, true); } now call the ShowMessage() function wherever required in UpdatePanel Regards...
A
anurag veda
@anurag veda