title: disable event handler in c# on textchanged
body: <p>I want to be able to disable or enable textchanged event when I need to.
  I have made my function, but I need to dismiss event handler, how can I do that?</p>
  
  <p>Here is my code:</p>
  
  <pre><code>private void textBox1_TextChanged(object sender, EventArgs e)
  {
             //something
  }
  </code></pre>