title: Determine number of characters entered into textbox with C#
body: <p>Hi I was wanting to display the number of characters entered into a textbox and I want it to update as I type how can I go about this?</p>
  
  <p>Here is what I have:</p>
  
  <pre><code>int kk = textBox1.MaxLength;
  int jj = //This is what I need to know.
  string lol = jj.ToString() + "/" + kk.ToString();
  label2.Text = lol;
  </code></pre>