title: How to disable the selection on a TextBox
body: <p>I want to disable selecting text and clicking in the middle of text in a TextBox, but the user must be able to enter this TextBox and write at the end of earlier text, so I cannot make it <code>ReadOnly</code> or <code>Enable = false</code>.</p>
  
  <p>I try to handle <code>MouseDown</code> and do the following:</p>
  
  <pre><code>input.Select(input.Text.Length, 0);
  </code></pre>
  
  <p>It helps with placing a cursor in the middle of text, but the user still can make a selection from the end.</p>
  
  <p>I also make a <code>MessageBox()</code> on <code>MouseDown</code> event, but in this case the user cannot click on textBox and write anything.</p>
  
  <p>The last try was to set a <code>focus()</code> in another Control and focus back, after a period of time, but it didn't work at all. User still can make a selection.</p>
  
  <p>How can I do it?</p>