I have a set of data that I am pulling from a database and putting into a datatable.  When I assign the datatable to the DataSource of my grid, I get the error: "Key already exists Parameter name: Key"

I have found that two columns in the .Net DataTable have the same name, but different cases.  Here is a short example to reproduce this:

1.  Add a grid to the form and just click "Finshed" when the wizard comes up.

2.  Add the following code:

        Dim dt As New DataTable("Test")

        Dim col1 As DataColumn = New DataColumn("Col 1", GetType(Double))
        col1.Caption = "Col 1"
        dt.Columns.Add(col1)

        Dim col2 As DataColumn = New DataColumn("COL 1", GetType(Double))
        col2.Caption = "COL 1"
        dt.Columns.Add(col2)

        UltraGrid1.DataSource = dt  '  <---  Exception will occur here

The names of the DataColumns only differ in case.  Aside from changing the names (since in the real world I will not have control of this and the names differing in case only is a potential in the data I have to use), is there a setting I am missing to keep this from happening.