Question

i am having a foreach loop that i am trying to turn into a linq query

List<CustomType> typeList=new List<CustomType>();
List<int> ListID=new List<int>();

foreach (Info info in SubDetails)
{
    if (typeList.Contains(info.TypeID))
    {
        ListID.Add(info.OrderID);
    }
}

Now i am trying to turn it into a linq loop

 SubDetails.ForEach(u => List.AddRange(
                    typeList.Contains(ID or something)
                    .Select(u.OrderID)));

But that did not work obviously, Kindly guide me towards the right direction

Answer 1

Try this:

var ListID = SubDetails
                .Where(info => typeList.Any(type => type == info.TypeID)
                .Select(info => info.OrderID);