/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

0 vote318 views1 answer
C# convert enumb to int array
C#
33 votes396 views5 answers
Unity get child
C#Unity
0 vote394 views1 answer
Httpclient jwt token c#
C#
0 vote345 views1 answer
Array to object c#
C#
1 vote329 views1 answer
Unity Bullet script
C#
0 vote344 views1 answer
Get dwgexport setting reivit api
C#
-2 votes330 views2 answers
C# concatenation
C#
1 vote337 views1 answer
C# get all inherited classes of a class
C#
0 vote415 views1 answer
Unity Interstitial ad C#
C#Unity
0 vote341 views1 answer
How to write a list to csv c#
C#