.netwpfxamldata-bindingrelativesource

How do I use WPF bindings with RelativeSource?

How do I use RelativeSource with WPF bindings and what are the different use-cases?

Solution

  • If you want to bind to another property on the object:

    {Binding Path=PathToProperty, RelativeSource={RelativeSource Self}}

    If you want to get a property on an ancestor:

    {Binding Path=PathToProperty,
    RelativeSource={RelativeSource AncestorType={x:Type typeOfAncestor}}}

    If you want to get a property on the templated parent (so you can do 2 way bindings in a ControlTemplate)

    {Binding Path=PathToProperty, RelativeSource={RelativeSource TemplatedParent}}

    or, shorter (this only works for OneWay bindings):

    {TemplateBinding Path=PathToProperty}