private void AddOperation_Click(object sender, RoutedEventArgs e) { using (var DB = new SkladModel()) { if (CB_Oper.SelectedItem.ToString() == "Покупка") { MessageBox.Show(DB.AddOperation(SkladTable.OperationStatus.Purchase, TB_Doc.Text, Convert.ToInt32(TB_NumD.Text), quantityProduct, DP_Date_Of_Completion.SelectedDate, Convert.ToInt32(CB_Empl.SelectedValue), productId)); quantityProduct.Clear(); productId.Clear(); } if (CB_Oper.SelectedItem.ToString() == "Продажа") { MessageBox.Show(DB.AddOperation(SkladTable.OperationStatus.Sale, TB_Doc.Text, Convert.ToInt32(TB_NumD.Text), quantityProduct, DP_Date_Of_Completion.SelectedDate, Convert.ToInt32(CB_Empl.SelectedValue), productId)); quantityProduct.Clear(); productId.Clear(); } } UpdateTable(); UpdateComboBox(); }