passing argument with InvokeCommandAction MVVM

Question

I want to disable the cell/Column based on some business logic. I am using ShowingEditor event and ShowingEditorEventArgs to cancel it. Passing ShowingEditorEventArgs would be excellent.I am able to pass the full grid as an argument. using below code. But i just want to pass ShowingEditorEventArgs of selected cell.May be some relative resource binding help me out here.

<dxg:GridControl x:Name="grid" >
                <dxg:GridControl.View>
                    <dxg:TableView Name="view"  ShowingEditor="view_ShowingEditor">
                    <i:Interaction.Triggers>

                        <i:EventTrigger EventName="ShowingEditor">
                            <i:InvokeCommandAction Command="{Binding ShowingEditorCommand}" CommandParameter="{Binding RelativeSource={RelativeSource AncestorType={x:Type dxg:GridControl}}}" />

... Note:

1. I can't use MVVM light(GalaSoft).

2. interactions are not giving me CallMethodAction.

   xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions"
   <ei:CallMethodAction
   

3. I don't want to pass the binded property of ViewModel(e.g. SelectedItem)

4. Using DevExpress GridControl

Answer 1

Consider using the DevExpress MVVM Framework, where you can pass event args to the view model as a parameter:

<dxmvvm:Interaction.Behaviors>
    <dxmvvm:EventToCommand EventName="ShowingEditor" Command="{Binding ShowingEditorCommand}" PassEventArgsToCommand="True" />
</dxmvvm:Interaction.Behaviors>

Or even convert the EventArgs object before passing it to your command using a converter specified by the EventArgsConverter property.

Take a look at the EventToCommand article to learn more.

P.S. If you cannot use DevExpress MVVM Framework for some reason, this post describes how to implement a custom TriggerAction passing event args to a command manually.