Question

The Messagebox code in c# i’ve used is the following code,which is call conditionally based on my requirement.It works fine in all cases except when the Ajax update panel is used.
For example i would like to prompt the user if no check box is selected in a gridview,with
appropriate message,The code is executed but no message box is displayed

 public static void MessageBox(string message, Page page)
    {       
        if (!string.IsNullOrEmpty(message))
        {
            Label lbl = new Label();
            lbl.Text = "<script type=\"text/javascript\" language=\"javascript\">" + "alert('" + message + "'); " + "</script>";
            page.Controls.Add(lbl);
        }
    }

Answer 1

You could do as suggested here