[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Gets or sets the location from which the requested file will be uploaded.
Assembly: Microsoft.Phone (in Microsoft.Phone.dll)
To help isolate the files to which the background transfer service has access, all transfers must be uploaded from a file within the \shared\transfers directory in the application’s isolated storage. You may add additional directories under this directory, but attempting to set a URI that is outside of the transfer directory will throw an exception.
The maximum file size supported for uploads is over a cellular connection is 5 MB. Over Wi-Fi with battery power the maximum is 20 MB. Over Wi-Fi with external power, the maximum is 100MB.
This method may throw one of the following exceptions.
A transfer request’s properties cannot be modified after it has been submitted or disposed.
The path must point to a location within the \shared\transfers directory. Only relative URIs are supported. The path cannot be zero length.
The path must end with a file name.
The specified Uri must be of type UriKind.Relative. Absolute paths using the “isostore:” Uri schema are not supported.