private async void saveButton_Click(object sender, RoutedEventArgs e) { if (dt.Rows.Count == 0) { await this.ShowMessageAsync("Error", "Please enter items you need to register", MessageDialogStyle.Affirmative); } else { try { int affectedLines = 0; affectedLines = handleDatabase.executeItemEntry(dt); handleDatabase.enterStockDetails(dt); NewItemGrid.Columns.Clear(); dt.Clear(); if (affectedLines > 0) { await this.ShowMessageAsync("Successfull", "New Supplier have been Successfully Entered", MessageDialogStyle.Affirmative); } else { await this.ShowMessageAsync("Error", "Sorry Can not add, Please Try again", MessageDialogStyle.Affirmative); } } catch (SqlException sqlException) { Console.WriteLine(sqlException); } } }