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public class CompositKey<T, K> : IEquatable<CompositKey<T, K>> where T:IEquatable<T> where K:IEquatable<K>
{
public CompositKey(T key1, K key2)
{
Key1 = key1;
Key2 = key2;
if (Key1 == null || Key2 == null)
throw new ArgumentNullException(Key1 == null ? "Key1" : "Key2");
}
public virtual T Key1 { get; protected set; }
public virtual K Key2 { get; protected set; }
public override int GetHashCode()
{
return (int)(Key1.GetHashCode() + Key2.GetHashCode());
}
#region IEquatable<CompositKey<T,K>> Membres
public bool Equals(CompositKey<T, K> other)
{
if (ReferenceEquals(other,null))
return false;
else
{
bool c1, c2;
if (Key1 == null)
c1 = other.Key1 == null;
else
c1 = Key1.Equals(other.Key1);
if (Key2 == null)
c2 = other.Key2 == null;
else
c2 = Key2.Equals(other.Key2);
return c1 && c2;
}
}
#endregion
public static bool operator ==(CompositKey<T, K> a, CompositKey<T, K> b)
{
if (ReferenceEquals(a, null))
return ReferenceEquals(b, null);
else
return a.Equals(b);
}
public static bool operator !=(CompositKey<T, K> a, CompositKey<T, K> b)
{
if (ReferenceEquals(a, null))
return !ReferenceEquals(b, null);
else
return !a.Equals(b);
}
}
/* ET LE TEST !! */
public Form1()
{
Dictionary<CompositKey<string, string>, string> test
= new Dictionary<CompositKey<string, string>, string>();
test[new CompositKey<string, string>("A", "B")] = "chat";
test[new CompositKey<string, string>("A", "C")] = "chien";
var gh = new CompositKey<string, string>("A", "C");
MessageBox.Show(gh.Equals(new CompositKey<string, string>("A", "C")).ToString());
MessageBox.Show((gh == (new CompositKey<string, string>("A", "C"))).ToString());
MessageBox.Show(test.ContainsKey(new CompositKey<string, string>("A", "B")).ToString());
MessageBox.Show(test.ContainsKey(new CompositKey<string, string>("A", "C")).ToString());
MessageBox.Show(test.ContainsKey(new CompositKey<string, string>("D", "B")).ToString());
MessageBox.Show(test[new CompositKey<string, string>("A", "B")]);
} |
