Binding Visibility to DataContext

Question

I have a value converter that converts null to Visibility.Collapsed. Now I try to use it in a user control so that the whole control would collapse when it\'s DateContext is nul

Answer 1

In this case, when DataContext is null, binding will use value specified in TargetNullValue property. So simply set TargetNullValue=Collapsed and you're good to go :

Visibility="{Binding TargetNullValue=Collapsed}"

Reference : [How to Set TargetNullValue to Visibility.Collapsed in Binding]