Question

Is there a way I can reuse Styles for more than 1 TargetType eg. ComboBox and TextBox

<Style TargetType="ComboBox, TextBox" />

is there such a thing? Or is the only way duplicate the style and target each style to differnt types?

Answer 1

You can’t (if I’m not mistaken).
But what you may do in order to avoid copy-paste is to create a BaseStyle with a key and then create two styles for ComboBox and TextBox which are BasedOn the BaseStyle. smth like that:

<Style x:Key="BaseStyle" TargetType="{x:Type Control}">
   <Setter ... />
</Style>

<Style BasedOn="{StaticResource BaseStyle }" TargetType="{x:Type ComboBox }" />
<Style BasedOn="{StaticResource BaseStyle }" TargetType="{x:Type TextBox}" />