title: textbox Insert and remove function in vb.net or c#
body: <p>How to update the text from the <code>TextBox</code> control?</p>
  
  <p>Consider a <code>TextBox</code> that already contains the string "Wel"</p>
  
  <p>To insert text in the <code>TextBox</code>, I use:</p>
  
  <pre><code>   TextBox1.Text = TextBox1.Text.Insert(3, "come")
  </code></pre>
  
  <p>And to remove characters from the <code>TextBox</code>:</p>
  
  <pre><code>    TextBox1.Text = TextBox1.Text.Remove(3, 4)
  </code></pre>
  
  <p>But I need to be able to do this:</p>
  
  <pre><code>    TextBox1.Text.Insert(3, "come");
      TextBox1.Text.Remove(3, 4);
  </code></pre>
  
  <p>However, this code doesn't update the <code>TextBox</code>.</p>
  
  <p>It this possible?</p>
  
  <p>Can this be accomplished via the append method?</p>