soniya - 6 months ago 22

C# Question

I need to do, for example: Select customers whose total Sum of Amount is greater than 0. I tried below code and with reference to this result trying fetch data. but not getting Proper result.

`var query = (from a in saleList`

group a by a.Cust_Ledger_Entry_No into groups

select groups.Sum( s => s.Amount) > 0).ToList();

I did above query.Now I need data which satisfying above condition.Please help me.

Answer

You need a `Where`

```
var query = from a in saleList
group a by a.Cust_Ledger_Entry_No into g
where g.Sum( s => s.Amount) > 0
select new { Cust_Ledger_Entry_No = g.Key, SumAmount = g.Sum( s => s.Amount) };
```

I need result like, customers whose sum of amount greater than 0 with all columns

If `a`

is the customer and you need to select all you can use this query:

```
var query = from a in saleList
group a by a.Cust_Ledger_Entry_No into g
where g.Sum( s => s.Amount) > 0
from customer in g // flatten each group
select customer;
```