Loading

Interface reference varibles.

Sandeep Kumar

What is the difference between the below 2 statements and when to use what?

1) IList stdList = new List();

2) List stdList = new List();

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Sandeep Kumar8y ago
It would be great if you let us know the advantages and disadvantages of using IList EmpList = new List(); over the other one.
Dharmraj Thakur8y ago
IList<> is an interface. List<> is a concrete class.

Either of these will be valid:

IList EmpList = new List();

and

List EmpList = new List();

However, you cannot instantiate an interface, i.e. the following will fail:

IList EmpList = new IList();

https://stackoverflow.com/questions/12369570/difference-between-ilistt-and-listt