wpf - Why doesn't my TextBlock/TextBox apply values from a Base Style?

Question

It's not uncommon for me to write something like below for styling a data entry form, but my problem is that TextBox and TextBlock don't seem to implement the Setters that are in the BaseElementStyle. Usually I need to define them separately.

Why is this? And is there a way around it?

I am guessing it has to do with the fact they are usually used in other control templates (for example TextBlock is used in most controls and TextBox is used in DatePickers and ComboBoxes)

<Style x:Key="BaseElementStyle" TargetType="{x:Type FrameworkElement}">
    <Setter Property="Margin" Value="5" />
    <Setter Property="VerticalAlignment" Value="Center" />
</Style>
<Style TargetType="{x:Type TextBlock}" BasedOn="{StaticResource BaseElementStyle}" />
<Style TargetType="{x:Type TextBox}" BasedOn="{StaticResource BaseElementStyle}" />
<Style TargetType="{x:Type Label}" BasedOn="{StaticResource BaseElementStyle}" />
<Style TargetType="{x:Type ComboBox}" BasedOn="{StaticResource BaseElementStyle}" />
<Style TargetType="{x:Type DatePicker}" BasedOn="{StaticResource BaseElementStyle}" />
<Style TargetType="{x:Type CheckBox}" BasedOn="{StaticResource BaseElementStyle}" />

Answer 1

I would like to suggest the two possible workarounds. It seems that each of Key and Type can be used but both of them cannot be used together as your question case, x:Key="BaseElementStyle" TargetType="{x:Type FrameworkElement}".

1. using x:Key

   <Style x:Key="BaseElementStyle">
       <Setter Property="FrameworkElement.Margin" Value="5" />
       <Setter Property="FrameworkElement.VerticalAlignment" Value="Center" />
   </Style>
   <Style TargetType="{x:Type TextBlock}" BasedOn="{StaticResource BaseElementStyle}" />
   <Style TargetType="{x:Type TextBox}" BasedOn="{StaticResource BaseElementStyle}" />
   <Style TargetType="{x:Type Label}" BasedOn="{StaticResource BaseElementStyle}" />
   <Style TargetType="{x:Type ComboBox}" BasedOn="{StaticResource BaseElementStyle}" />
   <Style TargetType="{x:Type DatePicker}" BasedOn="{StaticResource BaseElementStyle}" />
   <Style TargetType="{x:Type CheckBox}" BasedOn="{StaticResource BaseElementStyle}" />
   

2. using x:Type

   <Style TargetType="{x:Type FrameworkElement}">
       <Setter Property="Margin" Value="5" />
       <Setter Property="VerticalAlignment" Value="Center" />
   </Style>
   <Style TargetType="{x:Type TextBlock}" BasedOn="{StaticResource {x:Type FrameworkElement}}" />
   <Style TargetType="{x:Type TextBox}" BasedOn="{StaticResource {x:Type FrameworkElement}}" />
   <Style TargetType="{x:Type Label}" BasedOn="{StaticResource {x:Type FrameworkElement}}" />
   <Style TargetType="{x:Type ComboBox}" BasedOn="{StaticResource {x:Type FrameworkElement}}" />
   <Style TargetType="{x:Type DatePicker}" BasedOn="{StaticResource {x:Type FrameworkElement}}" />
   <Style TargetType="{x:Type CheckBox}" BasedOn="{StaticResource {x:Type FrameworkElement}}" />