How to get the sum value of the item if its sum quantity less than min stock

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hi,
i have two table with this sample data:

items:
itemID---MinStock
------------------
1 --- 100 
2 --- 5 
3 --- 20  
4 --- 10  


stock:
id---itemID---Qnty
------------------
1 --- 1    --- 5
2 --- 2    --- 10
3 --- 3    --- 5
4 --- 4    --- 10
5 --- 1    --- 7
6 --- 1    --- 20
7 --- 2    --- 5
8 --- 3    --- 25
9 --- 2    --- 5

how to get the sum value of the item if its sum Quantity less than MinStock (with entity framework).

What I have tried:

i don't have any idea to do it ..

Posted 10-Jun-18 15:39pm

Golden Basim

Updated 10-Jun-18 22:41pm

PIEBALDconsult

v3

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BillWoodruff 11-Jun-18 0:32am

"i don't have any idea to do it .."

we can't read your mind. define your problem with much more detail. if an order for a quantity of an item exceeds the number of items in stock: that's an invalid order ... depending on policies.

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Maciej Los · Accepted Answer · 2018-06-10T22:43:00

Solution 1

If i understand you well, you don't know how the get sum of Qnty field in stock table...
This is the way:

C#

var result = dbcontext.stock
    .GroupBy(x=>x.itemID)
    .Select(grp=>new
    {
        itemID = grp.Key,
        Count = grp.Sum(x=>x.Qnty)
    })
    .ToList();

The rest of job belongs to you!

Posted 10-Jun-18 22:43pm

Maciej Los

Updated 11-Jun-18 3:05am

v2

Comments

Golden Basim 11-Jun-18 8:37am

this work , thanks
int Shortages_StockNoSer = nDB01.stock_noserials
.GroupBy(x => x.stitems_ID)
.Select(grp => new
{
itemID = grp.Key,
sum = grp.Sum(x => x.StockQnty),
min = grp.Select(s => s.st_items.stitems_MinBalance).FirstOrDefault()
}).Where(u => u.sum < u.min && u.min != 0)
.Count();

Maciej Los 11-Jun-18 8:58am

You're very welcome!

Golden Basim 11-Jun-18 10:26am

thank you bro ::