Question

I have a datatable that has duplicate ID’s.

1 data moredata  4354
1 data moredata  4354
2 data moredaaata  4asdfdsa4
3 dasata edaaata  42342fdsa4
2 data moredaaata  4asdfdsa4

I want to get a datatable from that table with just row for each of the first column value like this: (does not need to be in order)

1 data moredata  4354
2 data moredaaata  4asdfdsa4
3 dasata edaaata  42342fdsa4

How can I do this?

Answer 1

You may use LINQ to query the datatable. Use group by on ID field and select First from the resultset. Something like..

var query = from t in dt.AsEnumerable()
            group t by t.Field<int>("ID") into g
            select g.First();