title: Textbox disabled with a huge string
body: <p>I'm having a issue with a <code>textbox</code> when it's typed a huge string.</p>
  
  <p>In my case, the textbox is used to write email addresses, and it doesn't have a limit of chars. So, I've made this test: I wrote 200 email addresses in a notepad, and I pasted the text on the <code>textbox</code> and the text disappeared, but if I change the focus of the control, the text is displayed again. I already saw this <a href="https://stackoverflow.com/questions/8097949/disabling-the-maxlength-property-of-a-textbox-in-c-sharp">link</a>, but it doesn't helped me. I already tried to change the <code>MaxLength</code> property to 0 (<a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.textboxbase.maxlength.aspx" rel="nofollow noreferrer">how the microsoft says to do</a>), but it doesn't worked here too.</p>
  
  <p>Considering a email address with 50 chars, the MaxLength property wouldn't be a problem, because 200 email addresses multiplying with 50 chars (each email), I'll have 10000 chars, and the default value of <code>TextBox.MaxLength</code> is 32767.</p>
  
  <p>And, before you ask for the code, I only set the text to a string.</p>
  
  <p><code>myEmailObject.Address = txtEmail.Text;</code></p>
  
  <p>Should I use <code>RichText</code>, or what?</p>