private void ExecuteEditPieceCommand(object obj)
        {
            frmPieceDetail frm = new frmPieceDetail(PiecesPageViewModel?.SelectedPiece);

            frm.Show();
        }
        private void ExecuteItemDoubleClick(object obj)
        {
            frmPieceDetail frm = new frmPieceDetail(SelectedPiece);

            frm.Show();
        }