I have a problem with getting grouped columns in LINQ.
My class:
public class DTO_CAORAS
{
public int? iORAS_KEY_CON { get; set; }
public int? iMERC_KEY {get;set;}
public double? decD_ORAS_QUA {get;set;}
}
LINQ query:
var results =
from oras in listCAORAS_Delivered
group oras by new
{
oras.iORAS_KEY_CON,
oras.iMERC_KEY
}
into orasGroup
select new
{
decD_ORAS_QUA = orasGroup.Sum(x => x.decD_ORAS_QUA)
};
List results
is filled only with one column - decD_ORAS_QUA
. I don't know how to get columns, by which query is grouped - IORAS_KEY_CON
and iMERC_KEY
? I would like to fill results
with iORAS_KEY_CON, iMERC_KEY and decD_ORAS_QUA.
Input data:
+---------------+-----------+---------------+
| iORAC_KEY_CON | iMERC_Key | decD_ORAS_QUA |
+---------------+-----------+---------------+
| 1 | 888 | 1 |
| 1 | 888 | 2 |
| 1 | 888 | 4 |
+---------------+-----------+---------------+
Desired output:
+---------------+-----------+---------------+
| iORAC_KEY_CON | iMERC_Key | decD_ORAS_QUA |
+---------------+-----------+---------------+
| 1 | 888 | 7 |
+---------------+-----------+---------------+
To also show the keys:
var results = from oras in listCAORAS_Delivered
group oras by new { oras.iORAS_KEY_CON, oras.iMERC_KEY } into g
select new DTO_CAORAS {
iORAS_KEY_CON = g.Key.iORAS_KEY_CON,
iMERC_KEY = g.Key.iMERC_KEY,
decD_ORAS_QUA = g.Sum(x => x.decD_ORAS_QUA)
};
As you are only grouping one column you can also:
var results = from oras in listCAORAS_Delivered
group oras.decD_ORAS_QUA by new { oras.iORAS_KEY_CON, oras.iMERC_KEY } into g
select new DTO_CAORAS {
iORAS_KEY_CON = g.Key.iORAS_KEY_CON,
iMERC_KEY = g.Key.iMERC_KEY,
decD_ORAS_QUA = g.Sum()
};
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