Data Providers which expose IFile elements (like IMediaFile for a custom Media File Provider) expose access to stream reads/writes by annotating the class implementing IFile with the FileStreamManagerAttribute attribute, passing the type of a IFileStreamManager as attribute parameter. Orckestra CMS will, via the attribute on the IFile, get the type responsible for stream reads/writes. The class implementing this interface is expected to provide read/write access to the file store being introduced by a file oriented File Provider.

public interface IFileStreamManager

Public Interface IFileStreamManager

public interface class IFileStreamManager

[FileStreamManager(typeof(MyFileStreamManager))]
public abstract class SomeFile : IFile
{
   /// ....
}