Question

I have the following sql table schema:

procudtId   productPrice  Color
==================================
1           3 $           Blue
1           3 $           Red
1           3 $           Green
2           5 $           Blue
2           5 $           Red

Using c# code I got this into dataSet.
How can I use linq to dataSet to build an array that looks like

[ price:"3$", ColorList:<"Blue","Red","Green"> ;
  price:"5$", ColorList:<"Blue","Red">]

Thanks

Answer 1

I think this will work:

    //dt is the DataTable you're working with.
    var groups = from row in dt.AsEnumerable()
                 group row["Color"] by row["productPrice"] into prices
                 select prices;

    var query = from g in groups
                select new
                {
                    price = g.Key,
                    ColorList = g.ToList()
                };

If that doesn’t do it, let me know and I’ll edit.