title: Exception thrown in debug mode, but where?
body: <blockquote>
    <blockquote>
      <p>A first chance exception of type 'System.IO.IsolatedStorage.IsolatedStorageException' occurred in mscorlib.ni.dll
      Operation not permitted on IsolatedStorageFileStream.</p>
    </blockquote>
  </blockquote>
  
  <p>It shows me this notice, but I don't know where does it generate it. How find out where is the code which generates this exception?</p>
  
  <p>PS.</p>
  
  <p>I'm using debug mode. (C#)</p>