Can one define a member variable for a generic delegate ?

[Whomsoever]

I have the Car class as described here under.

I was trying to see if I could define a private member variable of the delegate type as follows :

// Define a member variable of this delegate :
private CarEngineHandler<string> listOfHandlers;

but it doesn't work. Can anyone please advise where the code is incorrect or is it just not possible to declare a member variable in this manner when using generics ?

Any assistance would be gratefully appreciated.

Thank you.

public class Car
{
// Define a delegate type :
public delegate void CarEngineHandler<T>(T msgForCaller);

// Define a member variable of this delegate :
private CarEngineHandler<T> listOfHandlers;

// Add a registration function for the caller (this helper function is required ,
// because we made our member variable , listOfHandlers , private, thereby making
// it inaccessible outside this class) :
public void RegisterWithCarEngine(CarEngineHandler<T> methodToCall)
{
//listOfHandlers = methodToCall;
// TO make the delegate "multicast"
listOfHandlers += methodToCall;
}

// Add a method which allows a caller to deregister a method from the delegate's
// invocation list :
public void DeregisterWithCarEngine(CarEngineHandler<T> methodToCall)
{
listOfHandlers -= methodToCall;
}

// Internal state data :
public int CurrentSpeed { get; set; }
public int MaxSpeed { get; set; } = 100;
public string PetName { get; set; }

// Is the car dead or alive ?
private bool carIsDead;

// Class Constructors :
public Car() { }

public Car(string name, int maxSp, int currSp)
{
CurrentSpeed = currSp;
MaxSpeed = maxSp;
PetName = name;
}

// At this point, you need to create the Accelerate() method.
// Recall, the point here is to allow a Car object
// to send engine-related messages to any subscribed listener.
public void Accelerate(int delta)
{
// If the car is dead, send message :
if (carIsDead)
{
if (listOfHandlers != null)
{
listOfHandlers("Sorry, this car is dead !");
}
}
else
{
CurrentSpeed += delta;

// Is this car "almost dead"
if (10 == (MaxSpeed - CurrentSpeed) && listOfHandlers != null)
{
listOfHandlers("Careful ! The car engine is going to seize.");
}
if (CurrentSpeed >= MaxSpeed)
{
carIsDead = true;
}

else
Console.WriteLine("Current speed = {0} : ", CurrentSpeed);
}

}
}
}

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