Linq Search Between Two List

Question

I have a table schema like this:

MyTable columns:

 - FirstCol: 1507, 1507, 1507,1507,1507
 - SeconCol:  1508,1509,1510,1511,1512

I have a integer simple list of:

  List<int> myList= new List<int>();
             int a = 0;
             int myId= 1507;

            myList.Add(myId);

            foreach (var item in myList)
            {

                a = item.myId;
                myList.Add(a);

            }

It's result come like this :

 1507, 1508, 1509,1510,1511,1512(i am trying to get recursive query)

My second list of:

IEnumerable<Table> MyTable= table.SelectAll();
//myTable contains MyTableId, MyId, DeptId, UserId etc.

I just want to search if myTable's firstcol equals where ListmyList values. So here is my linq query with lambda expression.

 MyTable= MyTable.Where(myList.Contains((int)MyTable.Select(p=>p.myId))).ToList();

I get "Unknown methor where(bool) of. How can i change my query?

Answer 1

Try this:-

var result = MyTable.Where(x => myList.Contains(x.FirstCol)).ToList();

You can't use where clause like that, check Where syntax.