C# – linq case statement

c++linqsql

I need some help with CASE statements in linq (c#):

osc_products.products_quantity =
      CASE 
         WHEN itempromoflag <> 'N' THEN 100000
         WHEN itemcat1 IN ('1','2','31') AND itemsalestatus = 'S' THEN 100000
         WHEN itemsalestatus = 'O' THEN 0
         ELSE cds_oeinvitem.itemqtyonhand - cds_oeinvitem.itemqtycommitted 
      END  

My start at converting to linq, (I'm still learning):

cdsDBDataContext db = new cdsDBDataContext();
  var query = from items in db.cdsItems
              where items.ItemHandHeldFlag.Equals("Y") && 
              items.ItemQtyOnHand -  items.ItemQtyCommitted > 0
  select items;

This query updates stock status from production to a commerce site.

Best Solution

If its just the CASE statement in LINQ your after (read your comment) then an example of this is...

Int32[] numbers = new Int32[] { 1, 2, 1, 3, 1, 5, 3, 1 };

var numberText =
(
    from n in numbers
    where n > 0
    select new
    {
        Number = n,
        Text = 
        (
            n == 1 ? "One" :
            n == 2 ? "Two" :
            n == 3 ? "Three" : "Unknown"
        )
    }
);