Hi,

Is there any way to generate a collection with an access by some key? For example, I have Embedding reference with "allow dublicates" property equal to "False", the target role player has element name attribute. I want to get elements not only by index but by element name, for instance.

Evgeny

Hi Evgeny,

There's no direct/obvious way to gen the code automatically. You can either

1. Change the template file: This is so that it can generates the code you want. or

2. Add helper method in the parent/embedding model element to returned the embedded element via name.

Regards,

Patrick

Hi Patrick,

I took a look at the template, it's not easy to modify template, because there are a lot of dependencies on

Microsoft.VisualStudio.Modeling.LinkedElementCollection<T>

Helper method it is not what I really want, but... If add a generation of those methods to CodeTemplate it may be nice. I was looking on MonikerResolver.

Any way, thank you for response!

Evgeny

Hi Evgeny,

Really, at present it's not possibly to do this effectively.

You can simulate the API of a hastable to some extent by using a custom collection type of a role and deriving your own collection from LinkedElementCollection. This collection could add indexed accessors. However, making those accessors anything other than brute force searches is pretty painful as you can't change the fundamental storage of the links at present.

One way to do it if you really needed read-time perf is to use Store events to watch the collection and keep an extrinsic index in sync with the actual links.

I'd be interested to know how many folks would find being able to index collections by properties a compelling future feature.