title: How to set string with umlaut characters to wpf textbox?
body: <p>I am trying to set the <code>Text</code> property of a textbox in WPF with a string containing umlaut characters:</p>
  
  <pre><code>Textbox.Text = "!@#$%&amp;*,ÖÄäü";
  </code></pre>
  
  <p>But the textbox only displays <code>!@#$%&amp;*,</code> and omits the umlaut characters.</p>
  
  <p>How to make the umlaut characters to appear?</p>