How to create a 'sub' Method

[KLK000]

I'm creating a Class that performs low level manipulation of an archaic indexed sequential database. The Class is to make it easier for other developers who have to manipulate this database. I have a Class with Properties and Methods (subs and functions). However, how do I create a sub-method (a method under a method). As an example. I want the developer to be able to access a method in my class as follows:

MyClass.Method1

This I can program with no problem.

However, I also want the developer to access a sub-method as follows:

MyClass.Method1.SubMethod1

Any examples of how this can be programmed would be greatly appreciated.

 

[BeejCyr]

To do that, you need a class with in your class.
Pardon my sample. I am typing off the the top of my head here so there is no syntax checking. Its just to give you an idea.

Class2
Public Function ReadDBType1(recno as short) as string
' do your stuff
end function
end class


Class 1
public ReadDB as new Class2
Public Function MyStuff() as short
' whatever
end function
end class

In your program:
dim MyClass as new Class1

You can then perform MyClass.MyStuff
and you can call MyClass.ReadDB.ReadDBType1(4)

I hope that clarifies it for you.

 

[ThatRickGuy]

The items that shows up at your "SubMethod1" level are actually the members and methods of the object type returned by Method1.

For example, if MyClass has a function GetData that returns a datatable, you could do this:

MyClass.GetData.Rows.Add(datarow)

If you have a specific list of custom members you want to be available, create a class that contains those subs/functions/properties and make that the return type of your Method1 on MyClass.

-Rick

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[KLK000]

Thanks all. I had experimented with this approach but I wasn't sure this was the way it's supposed to be done. I'll proceed with more confidence now.

Thanks again!