Question

I have two lists.

Ex:

    List<string> expected = new List<string>();

    expected.Add( "a" );
    expected.Add( "b" );
    expected.Add( "c" );


    actual = new List<string>();
    actual.Add( "c" );
    actual.Add( "a" );
    actual.Add( "b" );
    actual.Add( "e" );
    actual.Add( "d" );

I have to compare both lists(regardless order).i have to remove extra values what are in the
second list.if second list contain all values of first list then i have to return true.

Can you please give any ideas.

Answer 1

How about something like this: I’m not clear on your statement “i have to remove extra values what are in the second list” but i think I’m understanding that you just want the union of both lists. Am I right?

        var expected = new List<string>();
        expected.Add("a");
        expected.Add("b");
        expected.Add("c");

        var actual = new List<string>();
        actual.Add("c");
        actual.Add("a");
        actual.Add("b");
        actual.Add("e");
        actual.Add("d");

        // sort the lists
        expected.Sort();
        actual.Sort();

        // if the lists are equal return true;
        if (expected.SequenceEqual(actual))
        {
            // the lists have the same contents -- return true or whatever
        }
        else {
            // union of both lists (abcde)
            var unionOfBoth = expected.Union(actual).ToList();
        }