Override Dictionary.Add

Question

I need to know how to override the Add-method of a certain Dictionary in a certain static class. Any suggestions?

If it matters, the dictionary looks like this:

Answer 1

In some scenarios, where TKey is a property of TValue, you may want to consider using KeyedCollection, which allows you to override InsertItem, SetItem, RemoveItem, and ClearItems.
It uses a dictionary internally (unless specified otherwise via the threshold constructor parameter), but also manages a collection.

I Haven't benchmarked or compared performance, there might be a performance difference so use carefully.

Consider voting on this feature suggestion on the .NET Core repo.