Inheriting / BasedOn datatemplate - wpf

Question

I have a DataTemplate that I am using within my WPF application -
<DataTemplate x:Key="mattersTemplate">
<Border Name="border" BorderBrush="Aqua" BorderThickness="1" Padding="5" Margin="5">
<Grid>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<TextBlock Grid.Row="0" Grid.Column="0" Text="FileRef:"/>
<TextBlock Grid.Row="0" Grid.Column="1" Text="{Binding Path=FileRef}" />
<TextBlock Grid.Row="1" Grid.Column="0" Text="Description:"/>
<TextBlock Grid.Row="1" Grid.Column="1" Text="{Binding Path=Description}"/>
<TextBlock Grid.Row="2" Grid.Column="0" Text="Priority:"/>
<TextBlock Grid.Row="2" Grid.Column="1" Text="{Binding Path=Priority}"/>
</Grid>
</Border>
</DataTemplate>
I then (in a DocumentSetTemplateSelector class) define which template to use;
What I would like to do / know is;
Create 4 other templates that would inherit this above template AND then allow certain attributes to be over-written;
An example (this template inherits from the above class) - so they look the same;
<DataTemplate x:Key="documentSet_Accounting">
<ContentPresenter Content="{Binding mattersTemplate}"
ContentTemplate="{StaticResource mattersTemplate}">
</ContentPresenter>
</DataTemplate>
I would like for there to be a style attached to this (if possible) so to get this effect;
<DataTemplate x:Key="documentSet_Accounting">
<ContentPresenter fontsize="20" Content="{Binding mattersTemplate}"
ContentTemplate="{StaticResource mattersTemplate}">
</ContentPresenter>
</DataTemplate>
or
<DataTemplate x:Key="documentSet_Accounting">
<ContentPresenter Style="AccountingStyle" Content="{Binding mattersTemplate}"
ContentTemplate="{StaticResource mattersTemplate}">
</ContentPresenter>
</DataTemplate>

Answer 1

How about using style inheritance within the templates rather than template inheritance?
<Style x:Key="mattersTemplateStyle">
<Setter Property="TextBlock.Foreground" Value="Green"/>
</Style>
<Style x:Key="documentSet_AccountingStyle" BasedOn="{StaticResource mattersTemplateStyle}">
<Setter Property="TextBlock.FontSize" Value="20"/>
</Style>
<DataTemplate x:Key="mattersTemplate">
<Border Name="border" BorderBrush="Aqua" BorderThickness="1" Padding="5" Margin="5">
<Grid Style="{StaticResource mattersTemplateStyle}">
[...]
</Grid>
</Border>
</DataTemplate>
<DataTemplate x:Key="documentSet_Accounting">
<Grid Style="{StaticResource documentSet_AccountingStyle}">
<ContentPresenter Content="{Binding mattersTemplate}" ContentTemplate="{StaticResource mattersTemplate}"></ContentPresenter>
</Grid>
</DataTemplate>