Silverlight user control inheritance. Reusing a template?

Question

I have the following script:

[TemplatePart(Name = GoToEditModeButtonPart, Type = typeof(DoubleClickButton))]
public class ValueBoxWithLabel : ContentControl
{
    public const string GoToEditModeButtonPart = "GoToEditModeButtonPart";

    #region LabelText Dependency Property ...

    #region IsInEditMode Dependency Property ...

    public event EventHandler<ModeChangedEventArgs> ModeChanged;

    public ValueBoxWithLabel()
    {
        DefaultStyleKey = typeof (ValueBoxWithLabel);
    }

    public override void OnApplyTemplate()
    {
        base.OnApplyTemplate();

        //IsInEditMode invokes ModeChanged in the dependency property
        ((DoubleClickButton) GetTemplateChild(GoToEditModeButtonPart)).DoubleClick += (sender, args) => IsInEditMode = true;
    }

    private void InvokeModeChanged(ModeChangedEventArgs e)
    {
        EventHandler<ModeChangedEventArgs> mode = ModeChanged;
        if (mode != null)
            mode(this, e);
    }
}

ValueBox is an important panel for any input. It is simple now, but will be reused throughout the application and will contain more complex behavior and layout.

TextBox as input is required, so I am doing this control:

public class TextBoxWithLabel : ValueBoxWithLabel
{
    #region Text Dependency Property ...

    public TextBoxWithLabel()
    {
        DefaultStyleKey = typeof (TextBoxWithLabel);
    }
}

Then I have the current generic.xaml that does not work, but it gives an idea of ​​what I want:

<ResourceDictionary>

<ControlTemplate x:Key="ValueBoxWithLabelTemplate">
    <StackPanel Style="{StaticResource ValueBoxWithLabelPanelStyle}">
        <TextBlock Style="{StaticResource LabelStyle}" Text="{TemplateBinding LabelText}" />
        <Grid>
            <ContentPresenter Content="{TemplateBinding Content}" />
            <local:DoubleClickButton Background="Black" x:Name="GoToEditModeButtonPart"></local:DoubleClickButton>
        </Grid>
    </StackPanel>
</ControlTemplate>

<Style TargetType="local:ValueBoxWithLabel">
    <Setter Property="Template" Value="{StaticResource ValueBoxWithLabelTemplate}" />
</Style>

<Style TargetType="local:TextBoxWithLabel">
    <Setter Property="Template" Value="{StaticResource ValueBoxWithLabelTemplate}" />
    <Setter Property="Content">
        <Setter.Value>
            <TextBox Style="{StaticResource ValueBoxStyle}" Text="{TemplateBinding Text}" />
        </Setter.Value>
    </Setter>
</Style>

Since ValueBoxWithLabel is most used with TextBox, I want to create a control for this that repeats the same template, so I do not need to copy / paste the template and be able to save as an updated version with the same changes.

ValueBoxWithLabelTemplate , ?

Answer 1

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<ControlTemplate x:Key="ValueBoxWithLabelTemplate">
    <StackPanel Style="{StaticResource ValueBoxWithLabelPanelStyle}">
        <TextBlock Style="{StaticResource LabelStyle}" Text="{TemplateBinding LabelText}" />
        <Grid>
            <ContentPresenter ContentTemplate="{TemplateBinding ContentTemplate}" />
            <local:DoubleClickButton Background="Black" x:Name="GoToEditModeButtonPart"></local:DoubleClickButton>
        </Grid>
    </StackPanel>
</ControlTemplate>

TextBoxWithLabel : -

<Style TargetType="local:TextBoxWithLabel">
    <Setter Property="Template" Value="{StaticResource ValueBoxWithLabelTemplate}" />
    <Setter Property="ContentTemplate">
        <Setter.Value>
            <DataTemplate>
                <TextBox Style="{StaticResource ValueBoxStyle}"  />
            </DataTemplate>
        </Setter.Value>
    </Setter>
</Style>

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