private void AddNewOrderButton_OnClick(object sender, RoutedEventArgs e) { DataRowView row = (DataRowView)DisplayOrderCarsDataGrid.SelectedItem; string autoIdText = row["Id"].ToString(); int autoId = Convert.ToInt32(autoIdText); string startDate = OrderStartDatePicker.Text; string endDate = OrderEndDatePicker.Text; string description = AddOrderDescriptionTextBox.Text; object state = AddOrderStateCombobox.SelectedItem; AddNewOrderButton.IsEnabled = true; Comanda order = new Comanda() { AutoId = autoId, DataFinalizare = Convert.ToDateTime(endDate), DataProgramare = Convert.ToDateTime(startDate), DataSystem = DateTime.Now, Descriere = description, KmBord = Convert.ToInt32(AddOrderKmTextBox.Text), StareComanda = getOrderState(Convert.ToString(state)), ValoarePiese = _totalCost }; _client.AddOrder(order); string getOrdersQuery = $"SELECT * FROM Comenzi WHERE AutoId = {autoId}"; ExecuteQuery(getOrdersQuery, DisplayOrderOrdersDataGrid); OrdersTabItem_OnLoaded(sender, e); }