linq to sql 操作
20151130
一、求和
from p in db.tblParts
group p by p.partName into g
select new {
partName = g.key,
totalWeight = g.Sum(p => p.partWeight)
}
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linq to sql 操作
20151130
一、求和
from p in db.tblParts
group p by p.partName into g
select new {
partName = g.key,
totalWeight = g.Sum(p => p.partWeight)
}
本文链接：https://my.lmcjl.com/post/14970.html
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