Public Class TextCategoryEditor
    Inherits CategoryEditor

    ' The EditorResources class in this example inherits ResourceDirectory and
    ' contains the template for the category editor. This would be defined in 
    ' an associated XAML file named EditorResources.xaml
    Private res As New EditorResources()
    Public Overrides Function ConsumesProperty(ByVal prop As PropertyEntry) As Boolean
        Return True
    End Function

    Public Overrides ReadOnly Property EditorTemplate() As System.Windows.DataTemplate
        Get
            Return CType(res("TextCategoryEditorTemplate"), DataTemplate)
        End Get
    End Property

    Public Overrides Function GetImage(ByVal desiredSize As System.Windows.Size) As Object
        Return Nothing
    End Function

    Public Overrides ReadOnly Property TargetCategory() As String
        Get
            Return "Text"
        End Get
    End Property
End Class

public class TextCategoryEditor : CategoryEditor
{

    // The EditorResources class in this example inherits ResourceDictionary 
    // and contains template for the category editor. This would be 
    // defined in an associated XAML file named EditorResources.xaml
    private EditorResources res = new EditorResources();
    public TextCategoryEditor()
    {
    }

    public override bool ConsumesProperty(PropertyEntry property)
    {
        return true;
    }

    public override DataTemplate EditorTemplate
    {
        get
        {
            return res["TextCategoryEditorTemplate"] as DataTemplate;
        }
    }

    public override object GetImage(Size desiredSize)
    {
        return null;
    }

    public override string TargetCategory
    {
        get { return "Text"; }
    }
}