Say my app has a bunch of DataGrids, all with an ItemsSource that provides objects with an Id property. Different types of objects for each DataGrid, but still with an Id property.

What I’d like to do (but it doesn’t work) is define a global style like this:

<Style TargetType="DataGrid">
  <Setter Property="RowHeaderStyle">
    <Setter.Value>
      <Style TargetType="DataGridRowHeader">
        <Setter Property="Content"
                Value="{Binding Id}" />
      </Style>
    </Setter.Value>
  </Setter>
</Style>

However, the binding doesn’t seem to work on the individual DataGrids, which probably makes sense.

Is this possible in any way? Preferably all in XAML.