Create instance of ISet(of String)

Question

I am struggling. Got properties that are of type ISet(of String) and I need to assign them with value.

.Add()

throws empty link error since it is not instantiated, been trying to create an instance, assign value and pass with set(), but

Activator.CreateInstance(Type.GetType(MyClass.MyProperty)

throws empty link. Neither this solution Visual Basic: dynamically create objects using a string as the name works, I ve output the list and ISet is simply not there.
I've been trying to solve this for a while now.

The class which implements the property ought to be initializing the underlying object, not the consuming code. ISet is an interface, so you can use it to declare objects and cast to it, but you cannot create instances of them; they are simply a contract of what methods and properties a given type (class) will implement. — Ňɏssa Pøngjǣrdenlarp
– Ňɏssa Pøngjǣrdenlarp, Commented May 16, 2016 at 21:50

Joel Coehoorn · Accepted Answer · 2016-05-16 21:53:08Z

2

Interfaces don't fully define objects. They only define one part of an object, and therefore you don't have enough information from the ISet(Of String) interface on it's own to create an instance.

What you need to do is find a type that implements the interface, and create one of those... HashSet(Of String) and SortedSet(Of String) would both work.

answered May 16, 2016 at 21:53

Joel Coehoorn

418k114 gold badges582 silver badges820 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Create instance of ISet(of String)

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related