title: C# keyup event issue
body: <p>I use keyup event to add the functionality that by pressing enter cursor move to next control. This event works but I typed something in TextBox and then press enter cursor move to next control but the letters I typed in previous control is clear. I did not add clear function anywhere in my code.
  Here is the code:</p>
  
  <pre><code>    private void nametextBox_KeyUp(object sender, KeyEventArgs e)
      {
          if(e.KeyCode == Keys.Enter)
          {
              this.SelectNextControl(nametextBox, true, true, true, true);
          }
      }
  
      private void emailtextBox_KeyUp(object sender, KeyEventArgs e)
      {
          if (e.KeyCode == Keys.Enter)
          {
              this.SelectNextControl(agetextBox, true, true, true, true);
          }
  
      }
  </code></pre>