public TValue this[TKeyA keyA, TKeyB keyB, TKeyC keyC]
{
get
{
var key = KeyTriple.Create(keyA, keyB, keyC);
return(base.ContainsKey(key) ? base[key] : default(TValue));
}
set
{
var key = KeyTriple.Create(keyA, keyB, keyC);
if (!ContainsKey(key))
{
base.Add(key, value);
}
this[key] = value;
}
}
public void Add(TKeyA keyA, TKeyB keyB, TKeyC keyC, TValue value)
{
base.Add(KeyTriple.Create(keyA, keyB, keyC), value);;
}
public bool ContainsKey(TKeyA keyA, TKeyB keyB, TKeyC keyC)
{
var key = KeyTriple.Create(keyA, keyB, keyC);
return(base.ContainsKey(key));
}