Overriding base Silverlight controls to display only text - silverlight-4.0

Question

I'm trying to create custom controls derived from the framework controls that have the added functionality of rendering themselves as a TextBlock. I'm doing this because the built-in IsEnabled or IsReadOnly properties don't meet my needs. However, I don't see any overridable methods in the control that would give me the functionality I need.
Am I headed down the right path? If not, is there a better way to do this?

Answer 1

Ok, this example is thrown together - keep that in mind. You'll notice that Im using some telerik controls... but you should be able to get the gist of what im doing. Also, in this example i threw together, im not using a DataTemplateSelector... just selecting the template in the code behind.
Rough sketch of xaml...
<UserControl x:Class="Admin.ManagePositions"
...
Title="MainWindow"
Width="525"
Height="350">
<UserControl.Resources>
<DataTemplate x:Key="ReadPositionTemplate">
<StackPanel>
<TextBlock Text="{Binding PositionCode}" Style="{StaticResource H5}" />
<StackPanel Orientation="Horizontal" HorizontalAlignment="Right">
<telerik:RadButton x:Name="btnEdit" Content="Edit" Click="btnEdit_Click" Command="{Binding DataContext.EditPositionCommand, ElementName=ucManagePositions}" />
<telerik:RadButton x:Name="btnDelete" Content="Delete Position" Style="{StaticResource AutoSizeButton}" Click="btnDelete_Click" Command="{Binding DataContext.DeletePositionCommand, ElementName=ucManagePositions}" />
</StackPanel>
</StackPanel>
</DataTemplate>
<DataTemplate x:Key="EditPositionTemplate">
<StackPanel>
<sdk:Label Target="{Binding ElementName=txtPositionCode}" />
<TextBox x:Name="txtPositionCode" Text="{Binding PositionCode, Mode=TwoWay, ValidatesOnExceptions=True,NotifyOnValidationError=True}" />
<StackPanel Orientation="Horizontal" HorizontalAlignment="Right">
<telerik:RadButton x:Name="btnSaveEdit" Content="Save" Click="btnSaveEdit_Click" Command="{Binding DataContext.SavePositionCommand, ElementName=ucManagePositions}" />
<telerik:RadButton x:Name="btnCancelEdit" Content="Cancel" Click="btnCancelEdit_Click" Command="{Binding DataContext.ResetHighlightPositionCommand, ElementName=ucManagePositions}" />
</StackPanel>
</StackPanel>
</DataTemplate>
</UserControl.Resources>
<Grid>
<telerik:RadTransitionControl x:Name="selectedPositionContainer" Loaded="selectedPositionContainer_Loaded" Content="{Binding HighlightedPosition}">
<telerik:RadTransitionControl.Transition>
<telerik:SlideAndZoomTransition />
</telerik:RadTransitionControl.Transition>
</telerik:RadTransitionControl>
</Grid>
</UserControl>
And a rough outline of the code behind:
namespace Admin
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class ManagePositions : UserControl {
public MainWindow()
{
InitializeComponent();
}
private void btnEdit_Click(object sender, RoutedEventArgs e)
{
DataTemplate dt = ucManagePositions.Resources["EditPositionTemplate"] as DataTemplate;
selectedPositionContainer.ContentTemplate = dt;
}
private void btnCancelEdit_Click(object sender, RoutedEventArgs e)
{
DataTemplate dt = ucManagePositions.Resources["ReadPositionTemplate"] as DataTemplate;
selectedPositionContainer.ContentTemplate = dt;
}
private void selectedPositionContainer_Loaded(object sender, RoutedEventArgs e)
{
DataTemplate dt = ucManagePositions.Resources["ReadPositionTemplate"] as DataTemplate;
selectedPositionContainer.ContentTemplate = dt;
}
}
}
Hope that helps!