I have a project on a Windows 7 machine in Visual Studio 2010 that contains a WPF ListView using a DataTemplate and it is showing strange behavior. I can run the project in Debug or build a Debug executable and launch it outside VS and the ListView will be populated with data. If I build in release mode the data is returned but does not show up in the grid. I can tell data is coming back based on a count property and Command binding behavior. I have seen something similar once before where a project would build in debug but throw errors in release. That was caused by a .dll that Windows 7 had decided to block. I don't see that on any of my .dll's in this project. I have tried to build on another Windows 7 Machine and seen the same behavior.
Has anyone seen this before or have debugging ideas?