Question

I have a method in Class A

public IList<T> MyMethod<T>() where T:AObject

I want to invoke this method in another generic class B. This T is without any constraints.

public mehtodInClassB(){
    if (typeof(AObject)==typeof(T))
    {
      //Compile error here, how can I cast the T to a AObject Type
      //Get the MyMethod data
        A a = new A();
        a.MyMethod<T>();
    }
}

Class C is inherited from Class AObject.

B<C> b = new B<C>();
b.mehtodInClassB() 

any thoughts?

After urs reminding…Update:

Yes. What I actually want to do is

typeof(AObject).IsAssignableFrom(typeof(T))

not

typeof(AObject)==typeof(T))

Answer 1

If you know that T is an AObject, why not just provide AObject as the type parameter to MyMethod:

if (typeof(AObject).IsAssignableFrom(typeof(T)))
{
  //Compile error here, how can I cast the T to a AObject Type
  //Get the MyMethod data
    d.MyMethod<AObject>();
}

If providing AObject as a type parameter is not an option, you’ll have to put the same constraint on T in the calling method:

void Caller<T>() where T: AObject
{
    // ...

    d.MyMethod<T>();

    // ...
}