Filtering in LINQ

Question

From the given setup

IEnumerable<int> one = new int[] { 1, 2, 3, 4, 5, 6, 7 };

IEnumerable<int> two = new int[] { 12, 34, 56, 7, 8 };


MySet[] sets
= new MySet[]
{ 
   new MySet{ MySetID =100, MySubSet=new MySubSet{SubSet=new List<int>(one), 
   SubSetID=1212}},

   new MySet{ MySetID =101, MySubSet=new MySubSet{SubSet=new List<int>(two),
   SubSetID=1414}}
};

How can i filter out even numbers from "SubSet"s

 var GetSet = 
     from mysets in sets 
    where (P => mysets.MySubSet.SubSet.FindAll(???? ))
    select mysets;

Answer 1

Is this what you want? Your question is rather confusingly worded, but I believe you are looking for something like this:

var query = from mySet in sets
            select new MySet {
                MySetID = mySet.ID,
                MySubSet = new MySubSet {
                    SubSet = mySet.MySubSet.SubSet.Where(p => p % 2 == 0).ToList(),
                    SubSetID = mySet.MySubSet.SubSetID
                }
            };

So I am interpreting your question to mean that you want to filter out the even numbers from MySubSet.SubSet in each instance of MySet.