/C#/C# list.except compare classes with IEqualityComparer

C# list.except compare classes with IEqualityComparer

// Except gives you the items in the first set but not the second
        var equalityComparer = new MyClassEqualityComparer();
        var InList1ButNotList2 = List1.Except(List2, equalityComparer);
        var InList2ButNotList1 = List2.Except(List1, equalityComparer);
// Intersect gives you the items that are common to both lists    
        var InBothLists = List1.Intersect(List2);

public class MyClass
{
    public int i;
    public int j;
}

class MyClassEqualityComparer : IEqualityComparer<MyClass>
{
    public bool Equals(MyClass x, MyClass y)
    {
        return x.i == y.i &&
               x.j == y.j;
    }

    public int GetHashCode(MyClass obj)
    {
        unchecked
        {
            if (obj == null)
                return 0;
            int hashCode = obj.i.GetHashCode();
            hashCode = (hashCode * 397) ^ obj.i.GetHashCode();
            return hashCode;
        }
    }
}

Source: stackoverflow.com

Similar codes

26 votes201 views3 answers
Print in c# unity
C#Unity
1 vote170 views1 answer
C# winforms textbox to int
C#
0 vote168 views1 answer
Change size of button C#
C#
3 votes176 views2 answers
C# open file
C#
0 vote176 views1 answer
C# get unix timespan
C#
33 votes175 views2 answers
Unity mouse position to world
C#
0 vote169 views1 answer
Remove carriage returns from string c#
C#
31 votes226 views3 answers
Get key unity
C#Unity
1 vote172 views1 answer
C# cast to type variable
C#
0 vote275 views1 answer
Unity get prefabs from folder
C#Unity