title: How to use on blur event using c#?
body: <p>I want to use On Blur event in my project. but it doesn't work. this is my code:  </p>
  
  <pre><code>code c#:
  protected void xx()
      {
          TextBox2.Text = "zzzzzzzzzzzzzzzzzzz";
      }
  
   code design:
  &lt;asp:TextBox ID="TextBox1" runat="server" onblur="xx"&gt;&lt;/asp:TextBox&gt;  
  &lt;asp:TextBox ID="TextBox2" runat="server" &gt;&lt;/asp:TextBox&gt; 
  </code></pre>
  
  <p>what is wrong?<br>
  by the way, I use visual studio 2010.</p>