I'm trying to display values of an enumeration (below)  in a combo box.

As a proof of concept, I've attempted to do this via a TypeConverter; but it
would appear that the associated TypeConverter is never instantiated, let
alone called.

Am I missing something silly, or is there some limitation of the ComboBox
that I'm unaware of? -- there certainly seem to be plenty of examples out
there that suggest this *should* work?

Code follows:

Imports System.ComponentModel
Imports System.Globalization

<TypeConverter(GetType(InvoiceDateFormatConverter))> _
Public Enum InvoiceDateFormat
   Us = 1
   [Ansi] = 2
   British = 3
   German = 4
   Italian = 5
   Usa = 10
   Japan = 11
   Iso = 12
   UsCentury = 101
   AnsiCentury = 102
   BritishCentury = 103
   GermanCentury = 104
   ItalianCentury = 105
   UsaCentury = 110
   JapanCentury = 111
   IsoCentury = 112
End Enum

Public Class InvoiceDateFormatConverter
   Inherits EnumConverter

   Public Sub New(ByVal type As Type)
       MyBase.New(type)
   End Sub

   Public Overridable Overloads Function CanConvertTo(ByVal context As
ITypeDescriptorContext, ByVal destinationType As Type) As Boolean
       If destinationType Is GetType(String) Then
           Return True
       End If

       Return MyBase.CanConvertTo(context, destinationType)
   End Function

   ' Overrides the ConvertTo method of TypeConverter.
   Public Overloads Overrides Function ConvertTo(ByVal context As
ITypeDescriptorContext, ByVal culture As CultureInfo, ByVal value As Object,
ByVal destinationType As Type) As Object
       If destinationType Is GetType(String) Then
           ConvertToString(context, culture, value)
       End If

       Return MyBase.ConvertTo(context, culture, value, destinationType)
   End Function

   ''' <summary>
   ''' Converts the given value to a string representation, using the
specified context and culture information.
   ''' </summary>
   ''' <param name="context">An <seealso cref="ITypeDescriptorContext" />
that provides a format context.</param>
   ''' <param name="culture">A <seealso cref="CultureInfo" /> object. If a
null reference (Nothing in Visual Basic) is passed, the current culture is
assumed.</param>
   ''' <param name="value">An <seealso cref="Object" /> to convert.</param>
   ''' <remarks></remarks>
   Public Overloads Function ConvertToString(ByVal context As
ITypeDescriptorContext, ByVal culture As CultureInfo, ByVal value As Object)
As String

       Dim dateFormatString As String
       Select Case CType(value, InvoiceDateFormat)
           Case InvoiceDateFormat.Us
               dateFormatString = "MM/dd/yy"
           Case InvoiceDateFormat.UsCentury
               dateFormatString = "MM/dd/yyyy"
           Case InvoiceDateFormat.Ansi
               dateFormatString = "yy.MM.dd"
           Case InvoiceDateFormat.AnsiCentury
               dateFormatString = "yyyy.MM.dd"
           Case InvoiceDateFormat.British
               dateFormatString = "dd/MM/yy"
           Case InvoiceDateFormat.BritishCentury
               dateFormatString = "dd/MM/yyyy"
           Case InvoiceDateFormat.German
               dateFormatString = "dd.MM.yy"
           Case InvoiceDateFormat.GermanCentury
               dateFormatString = "dd.MM.yyyy"
           Case InvoiceDateFormat.Italian
               dateFormatString = "dd-MM-yy"
           Case InvoiceDateFormat.ItalianCentury
               dateFormatString = "dd-MM-yyyy"
           Case InvoiceDateFormat.Usa
               dateFormatString = "MM-dd-yy"
           Case InvoiceDateFormat.UsaCentury
               dateFormatString = "MM-dd-yyyy"
           Case InvoiceDateFormat.Japan
               dateFormatString = "yy/MM/dd"
           Case InvoiceDateFormat.JapanCentury
               dateFormatString = "yyyy/MM/dd"
           Case InvoiceDateFormat.Iso
               dateFormatString = "yyMMdd"
           Case InvoiceDateFormat.IsoCentury
               dateFormatString = "yyyyMMdd"
           Case Else
               dateFormatString = "dd/MM/yyyy"
       End Select

       Return dateFormatString

   End Function

End Class