private void btnAddPr_Click(object sender, EventArgs e)
        {
            FormCrPr frcp = new FormCrPr();

            frcp.id_studio = id_studio;
            frcp.ShowDialog();

            LoadCards();
        }
        private void btnEdit_Click(object sender, EventArgs e)
        {
            FormCrPr frcp = new FormCrPr();

            frcp.id_studio = id_studio;
            frcp.gamesBindingSource.Filter = "id_game = " + (sender as Button).Tag;
            frcp.ShowDialog();

            LoadCards();
        }