multiple object instances

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Hello I have two problems
1)
I have written a class and would like to create multiple instances of it without having a pre-defined limit(ie like a select case of dim statements instantiating and naming the new instance's)
I am new to programming but have read a couple of books ,but they only show you how to create a single instance,or a couple with pre defined names. I tried using a variable as the field name in the dim statement ,but it wont let me do that
Whats the technique for managing multiple instances

2)
I actually have two classes that I want multiple instances of say, "A" and "B" .Then I want say, the third instance of A to be able to call a method in the fifth instance of "B" ,with again the instances being made on the fly.
I have searched and read about references and pointers as a guess in Google but neither of them seem relevant,unless I just didnt get it

I will be more then happy with just something I can google and read up on

Thank you for your help

Posted 17-Dec-09 20:29pm

Wankel Maggot

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4 solutions

Solution 2

I will look into it .Delegates are not something I've had much to do with yet,thank you Christian

Posted 18-Dec-09 8:29am

Wankel Maggot

Solution 3

An alternative to Christian's suggestion would be to use a dictionary, which uses "keys" and "values". You can add your objects to the dictionary and retrieve them later using a key. The keys can be any type you want them to be.

Posted 18-Dec-09 10:50am

Rick Shaub

Solution 4

There are good articles on delegates here on Code Project. They are basically a function definition that can point to a function in any class, so that calling the delegate, calls the function(s) it points to.

Posted 18-Dec-09 11:00am

Christian Graus

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Christian Graus · Accepted Answer · 2009-12-17T22:15:00

wrote:
I have written a class and would like to create multiple instances of it without having a pre-defined limit(ie like a select case of dim statements instantiating and naming the new instance's)

The way to create an arbitrary number of instances of an object, is to use a generic List, which you can then add to as often as you like.

wrote:
I actually have two classes that I want multiple instances of say, "A" and "B" .Then I want say, the third instance of A to be able to call a method in the fifth instance of "B" ,with again the instances being made on the fly.

You can use delegates to hook up methods between classes, but to do what you're describing in an arbitrary way sounds unworkable to me. You can certainly create a specific instance of both classes, and use a delegate to hook them to each other, but to do that in an arbitrary, ad hoc manner, I don't see a reason for it. Delegates are how you do it tho.