[Solved] result from command

[Carl]

Hi,

        private void deleteOption_Click(object sender, RoutedEventArgs e)

    {

      

        var deleteCommand = RadGridViewCommands.Delete as RoutedUICommand;

        if (selectedItem == null)

        {

            return;

        }

        if (selectedItem.GetType() == typeof(RadGridView))

        {

            var rgv = (RadGridView)selectedItem;

            deleteCommand.Execute(null, rgv);

        }

    }

    private void cut_Click(object sender, RoutedEventArgs e)

    {

        deleteOption_Click(sender, e);

    }

 
   private void _deletingOption(object sender, GridViewDeletingEventArgs e)

    {

        IEnumerable<object> items = e.Items;

        if (items == null)

        {

            return;

        }

        IEnumerator<object> optionEnum = items.GetEnumerator();

        optionEnum.MoveNext();

        RadControlsSilverlightApp5.com.tradestonesoftware.optionssheet.model.Option option = (RadControlsSilverlightApp5.com.tradestonesoftware.optionssheet.model.Option)optionEnum.Current;

        if (option.boms != null && option.boms.Count != 0)

        {

            Dispatcher.BeginInvoke(() =>

            {

                System.Windows.Browser.HtmlPage.Window.Alert("Row has children.  Delete child rows first.");

            });

            e.Cancel = true;

        }

        e.Handled = true;

    }

What is the best way to retrieve a result from a command?  For example, I want to know whether or not a row was deleted when I do the above.  When I do cutOption_Click I would like to know if the delete of the row actually happened.  Should I use
an instance variable?  Is the main class threadsafe? Or is their a way to pass in a parameter to the methods that can be inspected upon completion?

Thanks,

Carl

[Dimitrina]

Hi Carl,

 If you would like to receive a feedback for the result from a command, you will need to create your custom command that implements ICommand. It may use the inbuilt commands internally, but still you may add any custom additional logic that you need. 

I see that you execute a command manually by code on a button click. You would better use the command property of RadButton, or any other suitable control, like shown in this help article. Then you just need to bind the command's property to your custom command.

All the best,
Didie
the Telerik team