title: WPF Data virtualizing ListView
body: <p>In our current WinForms app, we are displaying millions of records in ListView, using virtualization. Rows are loaded from DB as they are requested. This works well, with good performance. </p>
  
  <p>This is a showstopper for migrating to WPF for us. We need data virtualization in a ListView, like WinForms 2.0 has. </p>
  
  <p>Do you know a decent third-party control, or a relatively easy way of doing it with built-in controls? It doesn't need to be a DataGrid, a simple ListView will suffice.</p>
  
  <p>Note, I'm note talking about UI virtualization, it's data virtualization. </p>