Create own Provider instance for createStreamedFileAsync

Question

Creating a StorageFile using createStreamedFileAsync I always get "app" as the provider for the file. I would however like to mark files coming from my cloud storage app with my own provider? It seems not possible. Well, OneDrive does it, but its using private API I guess.

Answer 1

Hi pkursawe,

Good question, I can only see following words from StorageProvider class MSDN documentation:

Contains info about the service that stores files and folders. Files and folders may be stored either by the local file system or by a remote  service like Microsoft OneDrive.

However I'm interested with the "service like", somehow means we should be able to add another StorageProvider. Then I found some interesting documentations, take a look at the Set-StorageProvider. It is a kind of system level stuff. 

However I think this question might be out of Windows Store App dev forum scope, the WinRT does not provide any API for you to create own provider.

--James

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Answer 2

Thanks James, which forum you think would be better suited for this question?

Answer 3

interessing question and been working on it too now.

fileuipickerui is accepting IStorageFile; so i tried to make a own implementation of it, now it gets stuck with returning an own StorageProvider.

but when adding my own implemenation of IStorageFile also getting an InvalidCastException runtime. so not working neither

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Microsoft Certified Solutions Developer - Windows Store Apps Using C#

Answer 4

Of course the cast exception comes from the fact that your class is not implementing the COM interfaces WinRT is expecting the class to have.