Toolkit.MVVM - how to binding events with parameters?

[zwolenik]

Hi everybody.
Working on some application and learning using MVVM model using toolkit I found som problem how implement some advanced events into view model.
For example when I would like to implement DataGrid event like
InitializingNewItem
what I need to do to implement them?

[michael-hawker]

The general pattern to take a generic event and hook into MVVM is either just wire up and call the command with parameters in code-behind from the event callback or use XAML Behaviors to do it from XAML.

You can combine the EventTriggerBehavior and InvokeCommandAction together in order to transform any event into a call to a command/parameter.

Generally you want your parameter to be your model type as you don't want to forward things like RoutedEventArgs into your ViewModels and such.