internal void Clear()
 {
     uiFactory.StartNew(() => {
         WorkspaceItems.Clear();
         OnPropertyChanged("SourceFiles");
     });
 }
 public void ClearWorkspaceItems(IContextualResourceModel resourceModel)
 {
     if (resourceModel == null)
     {
         return;
     }
     WorkspaceItems.Clear();
     resourceModel.Environment.ResourceRepository.DeleteResourceFromWorkspace(resourceModel);
 }