title: How can avoid richTextBox.Clear(); flash/blinking?
body: <p>I have this function:</p>
  
  <pre><code>private void clearRichtextBox()
  {
      richTextBox2.Clear();
      foreach (KeyValuePair&lt;string, List&lt;string&gt;&gt; kvp in LocalyKeyWords)
      {
          for (int i = 0; i &lt; kvp.Value.Count(); i++)
          {
              richTextBox2.AppendText("Url: " + kvp.Key + " --- " + "Localy KeyWord: " + kvp.Value[i]+Environment.NewLine);
          }
      }   
  }
  </code></pre>
  
  <p>Where its doing the <code>Clear();</code> it looks like the richTextBox blink/flash for milisecond or so. Any way to avoid stop it ?</p>