title: Show ScriptManager.RegisterStartupScript before Response.Redirect
body: <p>I want to show a message via "ScriptManager.RegisterStartupScript" then redirect to another page but the problem is I really need to use "Response.Redirect" here not any other code to go to that other page and this would cancel scriptManager...</p>
  
  <p>is there a way to fix this without changing "Response.Redirect" part?</p>
  
  <p>I use the following code:</p>
  
  <pre><code>ScriptManager.RegisterStartupScript(this, this.GetType(), "alertMessage", "alert('my message')", true);
  Response.Redirect("DropDownMenu.aspx");
  </code></pre>