WPF-ItemsControl / ListBox的可重用DataTemplate

Question

I need to reuse the following DataTemplate:

        <DataTemplate x:Key="courseItemTemplate">
        <Border BorderThickness="3" CornerRadius="5">
            <Border.Background>
                <SolidColorBrush>
                    <SolidColorBrush.Color>
                        <MultiBinding Converter="{StaticResource CourseColorConverter}">
                            <Binding RelativeSource="{RelativeSource Mode=FindAncestor, AncestorType=Window}" Path="DataContext.CourseColors"/>
                            <Binding Path="Course.CourseInfo.ID"/>
                        </MultiBinding>
                    </SolidColorBrush.Color>
                </SolidColorBrush>
            </Border.Background>
            <ContentControl Content="{Binding}"/>
        </Border>
    </DataTemplate>

The template will serve both ListBox and an ItemsControl, with different ItemsSource, and different template for presenting the content of each item. Essentially, what I would like is to be able to replace the ContentControl tag, with the relevant template for each of the controls

Answer 1

Use two DataTemplates with a common Border Style:

<Style x:Key="BorderStyle" TargetType="Border">
    <Setter Property="Background">
        <Setter.Value>
            <SolidColorBrush>...</SolidColorBrush>
        </Setter.Value>
    </Setter>
</Style>
<DataTemplate x:Key="T1">
    <Border Style="{StaticResource BorderStyle}">
        <ContentPresenter Content="{Binding P1}"/>
    </Border>
</DataTemplate>
<DataTemplate x:Key="T2">
    <Border Style="{StaticResource BorderStyle}">
        <ContentPresenter Content="{Binding P2}"/>
    </Border>
</DataTemplate>