[question] Will Garbage Collector Collect Memebers, When Object Is Casted To Parent Type, That Is Now Inaccessible On The Type Of Reference? about standard HOT 2 CLOSED

The string "2B" is still reachable, as shown in the sample code below.

ClassA obj = TestSample();
Console.WriteLine(obj.a); // "A2"

ClassB castObj = (ClassB)obj; // this cast is validated at runtime
Console.WriteLine(castObj.b); // "2B"

Since the runtime knows the actual type of the backing object, and since the caller might cast the object back to the more derived type, the entire object graph is kept alive.

from standard.

thanks for the explainations @GrabYourPitchforks

from standard.