Question

i have the following LINQ code which i found in a question on stackoverflow, i want to use it to delete the duplicate rows in the datatable and leave the one with the least index, here is the code and i can’t figure out the code to be added in the commented line

    Dim duplicates = From row In GoogleResults.AsEnumerable()
           Let seller = row.Field(Of String)("Seller")
           Group row By seller Into DuplicateSellers = Group
           Where DuplicateSellers.Count() > 1
           Select DuplicateSellers
            For Each DuplicateSellerRows In duplicates
                For Each row In DuplicateSellerRows
                    'remove current row, but skip the first one
'row.Delete() will remove all rows but how can i keep the first one?
                Next
            Next

Answer 1

You can use Skip() to skip the first row in each group of duplicates:

For Each DuplicateSellerRows In duplicates
    For Each row In DuplicateSellerRows.Skip(1)            
        row.Delete() 
    Next
Next