Creting a custom collection class

Question

Hello all, I am writing an application that will utilise a set of my own classes. I want to create another class that acts as a collection of my class. For example I could have a class "User". At some point in my application I may need to instanciate x objects of class "User". I would like to create a class called "UserCollection" which could then be used to group all x "User" objects so that when neccesary I could itterate through the "UserCollection" object like..... UserCollection myUsers = new UserColection(); User myUser1 = new User(a,b); myUsers.Add(myUser1); User myUser2 = new User(c,d); myUsers.Add(myUser2); User myUser3 = new User(e,f); myUsers.Add(myUser3); User myUser4 = new User(g,h); myUsers.Add(myUser4); .... User myUser13 = new User(y,z); myUsers.Add(myUser13); foreach(User currentUser in myUsers) { currentUser.callMethod1(); } Is there sample code around for doing this? Thanks

Answer 1

Thanks for your help - will have a look and see what I can come up with. I do still want to use my own collection class because I want to extend the collection class to include more properties specific to the purpose of the class. The example I gave is just an example I made up on the spot. Thanks Again

Answer 2

For the example that you have given a simple ArrayList would suffice but if you do want to crate your own collection class you could inherited from CollectionBase. The online MSDN documentation provides an example using this class: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfSystemCollectionsCollectionBaseClassTopic.asp