We’ve released a new version of the LightSwitch Filter control extension that is compatible with LightSwitch in Visual Studio 11. If you were using the previous version of this control and you want to upgrade your LightSwitch project to Visual Studio 11, first install this control. Then open the project in Visual Studio 2010 and unselect the extension from project properties extensions tab. Next open the project in Visual Studio 11 to upgrade your project. At this point you can re-select the Filter control extension.
Try it out and let us know if you run into issues by visiting the LightSwitch in Visual Studio 11 Beta Forum.