How to have a LINQ Query - Distinct()

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Hi, After a gap, again I entered to Visual C++ 2010. Now my intention is to prepare a LINQ Query to select a distinct value from a datatable

In C# My Query

var ProjLnkQry = (from P in MyClass1.ProjTbl.AsEnumerable() select P["proj_name"]).Distinct().ToList();

The above query I try to convert it into VIsual C++

C++

auto DistDepQry=(from v1 in MyGlobalData::ProjectTbl::AsEnumaerable() select v1["depart_name"])->Distinct()->ToList();

But not succeeded....Thanks for the ideas...

Posted 28-Oct-13 5:09am

Paramu1973

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Thomas Daniels 28-Oct-13 11:10am

Which error do yo get?

1 solution

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Ziee-M · Accepted Answer · 2013-11-15T01:19:00

Hi
Distinct:

C#

//distinct objects
List<objects> listObjects = (from obj in db.Objects                             
                             select obj).Distinct().ToList();
//distinct based on a specific propertie (in this case Mobile and Fax)
List<Objects> listObjects = (from obj in db.Objects                             
                                select obj).GroupBy(n => new {n.Mobile, n.Fax})
                                           .Select(g => g.FirstOrDefault())
                                           .ToList();

</objects>

Hope it helps