C# Linq Query - Groupby -

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i have datatable holds data such:

date operationa operationb operationc  today    5 today               6 today                          7

now, want like:

date operationa operationb operationc  today    5          6          7

i've had @ linq group clause, seems seperate data being grouped , doesn't keep within collection - althought linq novice, may missing something.

could please advise.

thanks.

class operation {     public datetime date { get; set; }     public int operationa { get; set; }     public int operationb { get; set; }     public int operationc { get; set; } }  var operations = loaddata(); var result = operations.groupby(o => o.date)                    .select(g => new operation                     {                         date = g.key,                         operationa = g.sum(o => o.operationa),                         operationb = g.sum(o => o.operationb),                         operationc = g.sum(o => o.operationc)                     });

p.s: db design looks weird. think table should this:

date       operation     type 2010-1-1      5           2010-1-1      6           b 2010-1-1      7           c

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