CODEWITHSUNDEEP
vb.netclassinheritance

Reputation:

How do you declare inheritance from a more than one entity (a class and one or more interfaces) in VB.NET?

I can't get a handle on the syntax. Can anyone give me a simple demo?

Upvotes: 1

Views: 667

Answers (3)

Spencer Ruport
Spencer Ruport

Reputation: 35117

It's been awhile but I think it's just:

Class MyClass : Inherits MyBaseClass : Implements IMyInterface1, IMyInterface2

The : are just so you can do it all on one line. If you don't use them it looks like:

Class MyClass 
   Inherits MyBaseClass 
   Implements IMyInterface1, IMyInterface2

Which is confusing if you're looking at a C# example because in that the colon is the inherit operator.

Upvotes: 9

Jeff Widmer
Jeff Widmer

Reputation: 4876

In VB.NET a class can only inherit from one base class. A VB.Net class can implement multiple interfaces.

Inherits statement:

Public Class thisClass
    Inherits anotherClass
End Class

Implementing an interface:

Public Class thisClass
    Implements IComparable, IDisposable
End Class

Both Inheriting and implementing in VB.NET:

Public Class thisClass
    Inherits anotherClass
    Implements IComparable, IDisposable
End Class

Upvotes: 3

RBarryYoung
RBarryYoung

Reputation: 56735

You cannot inherit implementations from more than one place in VB & C#, afaik. I guess you can do multiple Interface inheritance, though.

Upvotes: 1

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