void OnWorkspaceRequestClose(object sender, EventArgs e)
{
WorkSpacesViewModel workspace = sender as WorkSpacesViewModel;
workspace.Dispose();
this.Workspaces.Remove(workspace);
}
void SetActiveWorkspace(WorkSpacesViewModel workspace)
{
//Debug.Assert(this.Workspaces.Contains(workspace));
ICollectionView collectionView = CollectionViewSource.GetDefaultView(this.Workspaces);
if (collectionView != null)
{
collectionView.MoveCurrentTo(workspace);
}
}
