How to remove a method from CollectionBase

[Radgar]

How can I remove a method from System.Collections.CollectionBase? Say, I have a class: public class MyList : System.Collections.CollectionBase{} I have all the members of the collection base such as Add(object), Remove(object), RemoveAt(index), etc... I want to get rid of RemoveAt() and Insert() methods.. Do you have a solution? Thanks in advance..

Radgar

[Guffa]

You can't remove methods that you inherit. You can override them with methods that throws InvalidOperationException, or you can encapsulate the collection in a class that only exposes the methods that you want.

--- Year happy = new Year(2007);

[Phillip M Hoff]

You have a couple of options: 1. Do not derive from CollectionBase and instead implement ICollection and/or IList directly. This will allow you to either not include undesirable insertion/removal methods or, where those methods are required by the collection interfaces, to throw a NotImplementedException. 2. Derive from CollectionBase but override the protected OnInsert() and OnRemove() methods and throw a NotImplementedException. (You have to be careful with OnInsert(), though, as that will also get called for Add(), which you *do* want to allow.) -Phil

[Radgar]

Thank you for your responses.

Radgar "Imagination is more important than knowledge." - Albert Einstein