public static IFeatureWorkspace CreateFeatureWorkspace(string workspaceNameString)
{
IScratchWorkspaceFactory2 ipScWsFactory = new FileGDBScratchWorkspaceFactoryClass();
IWorkspace ipScWorkspace = ipScWsFactory.CurrentScratchWorkspace;
if (null == ipScWorkspace)
ipScWorkspace = ipScWsFactory.CreateNewScratchWorkspace();
IFeatureWorkspace featWork = (IFeatureWorkspace)ipScWorkspace;
return featWork;
}