Hello,

I am attempting to implement a custom collection and wish to databind it to
a datagrid.
Currently I can successfully bind the data, but all the properties in my
custom object appear in the grid.
I wish to hide some of the columns.
I have been advised that to do this I need to provide a
PropertyDescriptionCollection with the columns that I require in the
GetProperties implementation of my custom collection.
However, although I can iterate through the custom objects properties
perfectly when I try and add or remove items from the collection I receive a
'Method Not Supported' exception.

Here is my code:

Dim pd As PropertyDescriptor
Dim t As New clsTecBE_Product
Dim pdc As PropertyDescriptorCollection
pdc = TypeDescriptor.GetProperties(t)
For Each pd In pdc
   If pd.Name.ToString <> "ProductionEnd" Then
       pdc.Remove(pd)          'Method not Supported' Exception fires here
   End If
Next

Any ideas on why?

Many thanks for any help,

Nick