Question

I have a entity list. The entity has two integer variables. I’m trying to check if the list contains that identity but it always returns false.

Basically I’m trying to check if list contains X in any second indices.

List<Entity.Limit> list = new List<Entity.Limit>();

list.Add(new Entity.Limit(1, 2));
list.Add(new Entity.Limit(1, 3));
list.Add(new Entity.Limit(1, 4));

Response.Write(list.Contains(new Entity.Limit(1, 2))); //Returns False

Answer 1

Have Entity.Limit override Object.Equals. Right now, it’s comparing references, and so not matching any of them. So:

class Limit {
    // ...
    public override bool Equals(object obj) {
        Limit l = obj as Limit;

        if(l != null) {
            // Compare the two and return true if they are equal
        }

        return false;
    }
}

Then Contains() will be able to compare your objects properly.