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| class Program
{
static void Main(string[] args)
{
var list1 = new List<Toto>()
{
new Toto(){Name="Toto1",Val=1},
new Toto(){Name="Toto2",Val=2},
new Toto(){Name="Toto3",Val=3},
new Toto(){Name="Toto4",Val=4},
};
var list2 = new List<Toto>()
{
new Toto(){Name="Toto1",Val=1},
new Toto(){Name="Toto2",Val=20},
new Toto(){Name="Toto3",Val=30},
new Toto(){Name="Toto4",Val=4},
};
var diff = list2.Except(list1, new TotoEqualityComparer());
foreach (var totoDiff in diff)
{
Console.WriteLine("{0} -> {1}", totoDiff.Name, totoDiff.Val);
}
}
private class TotoEqualityComparer : IEqualityComparer<Toto>
{
public bool Equals(Toto x, Toto y)
{
return x.Name.Equals(y.Name) && x.Val == y.Val;
}
public int GetHashCode(Toto obj)
{
return obj.Name.GetHashCode(); // libre choix du GetHashCode
}
}
private class Toto
{
public String Name { get; set; }
public int Val { get; set; }
}
} |
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