CODEWITHSUNDEEP
c#generics
mukesh pallapothu
mukesh pallapothu

Reputation: 1

How to add items to a generic List in C#

When I was trying to add items to the generic list, I am unable to add, code I am using has been provided above, could any one suggest on this.

   Vehicle v2 = new Vehicle(2, false, "car", 50);
   Vehicle v3 = new Vehicle(3, false, "suv", 100);
   Vehicle v4 = new Vehicle(4, false, "suv", 100);

    public List<T> Initialize<T>() where T : Vehicle, new()
    {
        List <T> veh_list= new List<T>();

        //veh_list.Add(new T(1, false, "car", 50));

        veh_list.Add(v2);

        veh_list.Add(v3);
        veh_list.Add(v4);

        return veh_list;
   }

Error : Cannot Convert from Vehicle to T.

Upvotes: 0

Views: 210

Answers (1)

SLaks
SLaks

Reputation: 888177

Your method shouldn't be generic in the first place.
Making the method generic would let callers write Initialize<Truck>(), and a List<Truck> cannot contain Vehicles.

You should make a normal non-generic method that returns a List<Vehicle>.

Upvotes: 3

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