title: how to display message box with icons in ASP.NET using C#
body: <p>how to display message box with appropriate icons(such as Warnings/errors/Information etc.) in ASP.NET3.5  using C# </p>
  
  <p>This code doesn't helped.</p>
  
  <pre><code>ClientScript.RegisterStartupScript(this.GetType(), "Message", "alert('Data Saved successfully!');", true);
  </code></pre>