Based on this site, it is possible to use an attribute to rename the Indexer public class MyClass { public object Item { get; set; } [System.Runtime.CompilerServices.IndexerName(“MyItem”)] public object this[string index] { get { return null; } set { } } }
You need an indexer: public Thing this[string index] { get { // get the item for that index. return YourGetItemMethod(index) } set { // set the item for this index. value will be of type Thing. YourAddItemMethod(index, value) } } This will let you use your class objects like an array: MyClass cl = new … Read more
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 … Read more
You cannot implement a class with an indexer. You can create an interface, but that interface cannot be implemented by a class. It can be implemented in plain JavaScript, and you can specify functions as well as the indexer on the interface: class MyType { constructor(public someVal: string) { } } interface MyCollection { [name: … Read more
Setting up **__GXX_EXPERIMENTAL_CXX0X__** does not help in my case (Jul 2014, Eclipse Kepler 20130919, Ubuntu 12.04). To fix C++11 syntax highlighting go to: Project Properties –> C/C++ General –> Paths and Symbols –> Symbols –> GNU C++ and overwrite the symbol (i.e. add new symbol): __cplusplus with value 201103L UPDATED: If you use newer version … Read more
The way I look at indexers is that (rightly or wrongly!), accessing something by index should be more efficient than accessing it any other way, because in some way, shape or form, the class whose indexer I’m using stores some form of index that allows it to quickly lookup values when accessed that way. The … Read more
I believe it was considered not to be terribly useful. I think it’s a shame too – an example I tend to use is Encoding, where Encoding.GetEncoding(“foo”) could be Encoding[“Foo”]. I don’t think it would come up very often, but aside from anything else it just feels a little inconsistent not to be available. I … Read more
public int this[int key] { get => GetValue(key); set => SetValue(key, value); }