title: How to stop textbox leave event firing on form close
body: <p>using c# winforms vs2008</p>
  
  <p>I've got a textbox on a form with a method being called from the textBox1_Leave event. The method takes the contents of the textbox in question and populates other textboxes based on the contents.
  My problem is that is the user has focus on the text box then clicks the button to close the form (calling this.close) then the form does not close because the textbox leave event gets fired.
  If the textbox does not have focus on form close then the form closes fine.</p>
  
  <p>If however a user closes the form by clicking the little X close icon in the top corner the it closes fine all the time with out the textbox leave event being fired.</p>
  
  <p>How can I duplicate the X close functionality so that I can always close the form without the textbox leave event being fired?</p>