/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 vote229 views1 answer
How to move object with keyboard in unity 3D
C#Unity
0 vote198 views2 answers
Autoit console write
C#
-1 vote178 views2 answers
Indexof c#
C#
1 vote178 views2 answers
Unity for loop array
C#
16 votes149 views1 answer
For loop on enum c#
C#
0 vote189 views1 answer
Add mime type for woff in web.config
C#
4 votes200 views1 answer
Unity ui change sprite
C#
0 vote192 views1 answer
C# create a dummy class
C#
1 vote194 views1 answer
C# hex to console color
C#
0 vote179 views1 answer
Linq query languages
C#