with VB Net Ols3

Dim Rdr As OleDbDataReader = _
            Cmd.ExecuteReader(CommandBehavior.SchemaOnly)
I can getRdr.FieldCount, Rdr.GetName, and Rdr.GetFieldType(intField))
but I also need other stuff such as max field length (especially for text. is there a collection, or ODBC, DAO that I should use rather than
System.Data.OleDb