Binding a WPF Button CommandParameter to the Button itself in DataTemplate

c# wpf binding datatemplate commandparameter
Jippers picture Jippers · Sep 13, 2012 · Viewed 29.6k times · Source

I have a DataTemplate that represents AppBar buttons that I declare through a collection of custom AppBarCommand objects.

  public AppBarCommand(RelayCommand command, string buttonstyle)
  {
     Command = command;
     ButtonStyle = buttonstyle;
  }

<DataTemplate>
   <Button Command="{Binding Command}"
           Style="{Binding ButtonStyle, Converter={StaticResource StringNameToStyleConverter}}"/>
</DataTemplate>

I would like to add a CommandParameter binding, but the parameter has to be the Button itself. This is so I can set the PlacementTarget of a Callisto flyout. Is this possible?

Answer

Mikl&#243;s Balogh picture Miklós Balogh · Sep 13, 2012 
<Button Command="{Binding Command}" 
        CommandParameter="{Binding RelativeSource={RelativeSource Self}}" />

Your Command property should be the generic version of the RelayCommand: RelayCommand<object> for instance.

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