how to access class and its functions from another class

Question

This is my first major application using multiple classes. It is written in vb and I know about creating objects of the class and using that instance to call functions of the class. But how do I create an object with constructors to allow another program written in C# to access my classes and functions and accept things from the program.

Hope this makes sense.

Answer 1

Dim myClassInstance As New MyClass()

edit: Ah, you want to define a class with constructors? If that is the case, try this:

Public Class MyClass
    Public Sub New(myNumber As Integer) 'Defines a constructor with an Integer as argument
    End Sub
End Class

Answer 2

Simply create a .NET class library and include that library as a reference inside the C# program. In .NET all libraries are .DLL files.

Once you do that the library will be available to C# with C# syntax.

Answer 3

You need to compile your VB classes into a class library (DLL) not an application.

From you C# application you need to add a reference to your newly compiled DLL. This DLL contains the classes and methods that you can instantiate and call from C#.

Once you've added a reference to the VB DLL from your C# assembly, you can access the VB classes (mostly) as though they were all in the same assembly. (I say mostly because access modifiers can change this, especially the 'internal' access modifier).