A customised editor for a component..?

[Merrion]

OK - I am building a couple of windows forms components, one which provides text styles (like the header/subheader/ etc. stuff in MS Word) and another which allows you to build structured print documents....

However I am not able to attach the component designer to the component.
(full code attached)

So - I have a class that inherits from WindowsFormsComponentEditor:

Public Class DocumentParagraphTextStylesEditor
    Inherits WindowsFormsComponentEditor
 
#Region "Overrides"
    Public Overloads Overrides Function EditComponent( _
                 ByVal context As ITypeDescriptorContext, _
                 ByVal component As Object _
                 ) As Boolean
 
        If Not ((context Is Nothing) OrElse (context.Instance Is Nothing)) Then
            If TypeOf (component) Is TextStyleProvider Then
                '\\ Show the Form_TextStyleEditor
                Dim fEdit As New Form_TextStyleEditor
                If TypeOf (component) Is TextStyleProvider Then
                    fEdit.TextStyles = CType(component, TextStyleProvider).DocumentTextStyles
                    With CType(context.GetService(GetType(IUIService)), IUIService)
                        If .ShowDialog(fEdit) = DialogResult.OK Then
                            CType(component, TextStyleProvider).DocumentTextStyles = fEdit.TextStyles
                            Return True
                        Else
                            Return False
                        End If
 
                    End With
                End If
            End If
        End If
 
    End Function
#End Region
 
End Class

...and I have attached this to the component itself thus:-

<ToolboxBitmap(GetType(StructuredDocuments.TextStyleProvider), "TextStyleControl.bmp"), _
     EditorAttribute(GetType(StructuredDocuments.DocumentParagraphTextStylesEditor), GetType(WindowsFormsComponentEditor))> _
    Public Class TextStyleProvider
        Inherits System.ComponentModel.Component
'--8<--------------------------------
   End Class

However nothing happens - the component still tries to use the standard collection editor (with ghastly results).
Any ideas? or pointer to working code sample?

[kleinma]

Are you having the problem at run time or design time where it's not showing the editor correctly?

[Merrion]

At design time.
Add a "TextStyleProvider" component to a form and select properties. Then press the button next to the property "DocumentTextStyles" and you should get a nice designer (like shown) but instead a default collection editing window comes up...?