Here is the Property I want to use. The problem here is that the editor opens in the property window but the added objects are read only. 
I have referenced and imported all the surrounding goodies so there are no compile errors. What part of the house of cards have I missed? 
Private _ExcludeColumns As String
<Editor(GetType(System.ComponentModel.Design.ArrayEditor), GetType(UITypeEditor))> _
Public Property ExcludeColumns() As String
Get
Return _ExcludeColumns
End Get
Set(ByVal value As String)
_ExcludeColumns = value
End Set
End Property
My humble thanks in advance,
Joe Johnston
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