private void AddOperationButton_OnClick(object sender, RoutedEventArgs e) { string name = AddOperationNameTextBox.Text; string executionTime = AddOperationExecutionTimeTextBox.Text; if (!FieldsCompleted(name, executionTime)) { AddOperationDisplayInfoTextBlock.Text = @"Must complete mandatory fields."; } else { AddOperationButton.IsEnabled = true; Operatie operation = new Operatie() { Denumire = name, TimpExecutie = Convert.ToDecimal(executionTime) }; _client.AddOperation(operation); AddOperationDisplayInfoTextBlock.Text = @"Operation added."; AddOperationDisplayInfoTextBlock.Visibility = Visibility.Visible; OperationsTabItem_OnLoaded(sender, e); } }