private void dataGridItmes_Click(object sender, EventArgs e) { try { txtItemName.ReadOnly = true; setsales.ItemID = Int32.Parse(dataGridItmes.SelectedRows[0].Cells[0].Value.ToString()); txtSelectedItemName.Text = dataGridItmes.SelectedRows[0].Cells[1].Value.ToString(); this.ActiveControl = txtquantity; txtSelingPrice.Text = ItemSales.setSellinPrice(setsales.getItemID()).ToString(); txtquantity.Text = "0"; } catch (Exception) { } }