Opens a file in the specified mode with the specified read/write access.
path The relative path of the file within the isolated store.mode One of the enumeration values that specifies how to open the file.access One of the enumeration values that specifies whether the file will be opened with read, write, or read/write access.
A file that is opened in the specified mode and access, and is unshared.
This method is equivalent to using the IsolatedStorageFileStream.#ctor(string, System.IO.FileMode, System.IO.FileAccess, IsolatedStorageFile) constructor.