title: WPF Binding Formatexception
body: <p>In a C# Wpf application I have an XML Binded datasource.</p>
  
  <p>I want to update some xml like this:</p>
  
  <p><code>loop.Innerxml = "false"</code></p>
  
  <p>This value is binded (as a boolean) to a control. However when doing this, a formatexception comes up saying that a string is not a valid boolean (logical). However if the false is not entered as a string, I can't update the innerxml...</p>
  
  <p>Any advice?</p>