I'm really struggling with this one. I need a generic list parameter for my Get method, but it needs to be optional. I just did this:
public dynamic Get(List <long> ManufacturerIDs = null)
Unfortunately on runtime i get the error:
Optional parameter 'ManufacturerIDs' is not supported by 'FormatterParameterBinding'.
How to get a generic list as an optional parameter here?
What's the point of using an optional parameter? List<T>
is a reference type and if the client doesn't supply a value it will simply be null:
public HttpResponseMessage Get(List<long> manufacturerIDs) { ... }
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