Datagri "Index was outside the bounds of the array datagrid" error

I've a datagrid filled with a collection of objects that inherits from
basecollection.

When I remove an item from this collection and then click onto the datagrid,
I've always this error:

"Index was outside the bounds of the array datagrid"

I've tried this structure:
Dim oldList As Business.MyBaseCollection = DirectCast(dgDetails.DataSource,
Business.MyBaseCollection)

Me.BindList(Nothing, Nothing)

DirectCast(oldList, Business.MyBaseCollection).Remove(detailDeleted)

Me.BindList(oldList, Me.FatherItem)


The BindList sub set the list as datasource for the datagrid, and if the
source is not nothing assign a datagriTableStyle.

What can I do?

I've tried some refresh or update, but nothing.

thanks