Strange, Could of swore when I first wrote this, I was just getting 1 record.
Then I changed the return value to List from IEnumerable and starting getting 3 records back for each record.
But I doubt that had anything to do with it. I did raise the .Net level to 4.5.2.
Must be my And Statement.
I tried Distinct but It doesn't seen to be working, most likely because I have no clue how use it here.
I started writing in c# and MVC and don't write like this anymore.
Public Shared Function load_COH_ListBox_Info(
ByRef pResults As List(Of cohIndex)) As Integer
Dim pValue As Integer = 0
Dim context As New hx5Context()
From oh In context.Order_History
Where oh.OrderDate >= DbFunctions.AddDays(Today, -40) _
oh.OrderStatus = "COMPLETED" _
Or oh.OrderStatus = "ORDER_CANCELED" _
Or oh.OrderStatus = "ORDER_CANCELED_REFUND_COMPLETE"
Order By oh.OrderNumber Descending
Select New cohIndex With
.orderID = oh.CompletedOrderID,
.orderNumber = oh.OrderNumber,
.orderDate = oh.OrderDate,
.orderStatus = oh.OrderStatus,
.accountName = oh.LoginID,
.total_NetCharge = oh.GrandTotal
pValue = pResults.Count()
I am surprised as to why you didn't consider using GroupBy function? That would be useful in grouping the objects by a property, so that only distinct ones are returned, since they will be grouped by their property in a similar manner, to what you want to expect from Distinct function call here. Something like this,
// Since you said C#from oh in context.Order_History
where oh.OrderDate ...
orderby oh.OrderNumber desc
group oh by oh.RequiredProperty in ohGrouped // RequireProperty is the property you want to use
Something like this will be useful, as it will group the records by the properties which you specify. Please have a look here, [c# - Group by in LINQ - Stack Overflow](https://stackoverflow.com/questions/7325278/group-by-in-linq)
There is a library, which contains a lot of added features to LINQ, you should also look into it as it might also help you out with a lot of good function calls, such as this DistinctBy (DistinctBy takes the properties by which you want to select the records), get it here, GitHub - morelinq/MoreLINQ: Extensions to LINQ to Objects
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