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c#type-parameter

Typeparameter set from type argument

How do I convert my argument to a proper type declaration. Ie. how do I go from type to T in the following

class Foo<T>
{  
  Foo<??> MakeFoo(Type type)
  {
    return new Foo<??>();
  }

  Void Get(T aFoo)
  {
    ...
  }
}
Solution

  • You cannot.

    Generic parameters are used and applied by compiler while Type is a part of Reflections that are designed to work with type information in run-time. So you just cannot define which type compiler should use if you have only System.Type.

    However you can do the opposite:

    public void Foo<T>()
{
  Type t = typeof(T);
}

    So if you really do not need to use Type as a parameter you can do the following:

    Foo<FooParam> MakeFoo<FooParam>()
{
  return new Foo<FooParam>();
}