title: DateTime Not showing with currentculture format in Datagrid,ListView
body: <p>In WPF I am trying to Bind a date property in a <code>DataGrid</code> and I can only sort if it's bound to a <code>DateTime</code> property.</p>
  
  <p>The application should show the date in a format corresponding to the user's Region and Language settings.</p>
  
  <p>The issue is that when the date is a <code>string</code> property, it shows according to the Region settings, but when the property is bound to a <code>DateTime</code> the date format defaults to American rather than the correct region.</p>
  
  <p>So if it's bound to a <code>string</code> property the sorting by column doesn't work, and if it's bound to a <code>DateTime</code> property, it doesn't convert to the correct region.</p>