PropertyChanged for indexer property

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According to this blog entry, you have to use "Item[]". Item being the name of the property generated by the compiler when using an indexer.

If you want to be explicit, you can decorate the indexer property with an IndexerName attribute.

That would make the code look like:

public class IndexerProvider : INotifyPropertyChanged {

    [IndexerName ("Item")]
    public object this [string key] {
        get {
            return ...;
        }
        set {
            ... = value;
            FirePropertyChanged ("Item[]");
        }
    }
}

At least it makes the intent more clear. I don’t suggest you change the indexer name though, if your buddy found the string "Item[]" hard coded, it probably means that WPF would not be able to deal with a different indexer name.

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