Can I have one Style with multiple TargetType in WPF?

Question

As titled, and I mean something like below:

<Style TargetType="{x:Type TextBlock}"         TargetType="{x:Type Label}"          TargetType="{x:Type Button}" > 

This is actually for the sake of using a 3rd party control, I have inherited their class. But the template doesn't apply to the SubClass because the TargetType is on the base class. So I would like to set multiple TargetTypes to make it able to apply for both.

Answer 1

No you cannot, however I often create a style for a shared base class such as FrameworkElement, and then create my individual control styles that are BasedOn the base style

<Style TargetType="{x:Type FrameworkElement}">     <!-- Shared Setters --> </Style>  <Style TargetType="{x:Type TextBlock}" BasedOn="{StaticResource {x:Type FrameworkElement}}" /> <Style TargetType="{x:Type Label}" BasedOn="{StaticResource {x:Type FrameworkElement}}" /> <Style TargetType="{x:Type Button}" BasedOn="{StaticResource {x:Type FrameworkElement}}" /> 

Answer 2

A more flexible variation of Rachel's answer is to use resourceKey for BasedOn.

So, instead of:

<Style TargetType="{x:Type FrameworkElement}">     <!-- Shared Setters --> </Style> <Style TargetType="{x:Type TextBlock}" BasedOn="{StaticResource {x:Type FrameworkElement}}" /> 

Do something like:

<Style x:Key="commonStyle" TargetType="{x:Type FrameworkElement}">     <!-- Shared Setters --> </Style> <Style TargetType="{x:Type TextBlock}" BasedOn="{StaticResource commonStyle}" /> 

This gives more options as some styles can be based on commonStyle, and some on e.g. commonStyle2, where both commonStyle and commonStyle2 have FrameworkElement as target type.