Robert Jordan escribió:
> Andrés G. Aragoneses [ knocte ] wrote:
>> Today I've come out with this wish:
>>
>> Dictionary<typeof(T), List<T>> InternalCollection;
>>
>>
>> Of course, the compiler tells me an error, but I would want to know if I
>> can make this kind of collection with C# generics, in order to obtain
>> syntatic sugar and type safety, I mean:
>>
>> //compilation should succeed only if oMyObj is TypeX:T
>> InternalCollection.Add(typeof(TypeX), oMyObj);
>>
>> Any thoughts?
>
> class FooDictionary<T> : Dictionary<System.Type, T>
> {
> public void Add (T t)
> {
> this [typeof(T)] = t;
> }
> }
>
But that would only allow adding one object:
class mytype
{
...
}
class subtypeA : mytype
{
...
}
class subtypeB : mytype
{
...
}
FooDictionary<mytype> foo = new FooDictionary<mytype>();
foo.Add(new subtypeA());
foo.Add(new subtypeB());
This last addition would remove previous object because we are using
typeof(mytype) instead of typeof(subtype), am I right?
Besides, what I want to store is a List, not an object (I know, it
wasn't clear in first email), so my wish would be:
FooDictionary<mytype> foo = new FooDictionary<mytype>();
List<subtypeA> listA = new List<subtypeA>();
List<subtypeB> listB = new List<subtypeB>();
listA.Add(new subtypeA());
listB.Add(new subtypeB());
foo.Add(listA);
foo.Add(listB);
Thanks for your answer,
Andrés [ knocte ]
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