The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

ExternalStorageFile Class

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Represents a file on the SD card.


Namespace:  Microsoft.Phone.Storage
Assembly:  Microsoft.Phone (in Microsoft.Phone.dll)

public class ExternalStorageFile : IDisposable

The ExternalStorageFile type exposes the following members.

Public propertyDateModifiedGets the date and time when the current file was last modified.
Public propertyNameGets the name of the file, including the file name extension.
Public propertyPathGets the path of the current file.

Public methodDispose()Releases all resources used by the file on the SD card.
Protected methodDispose(Boolean)Releases all resources used by the file on the SD card.
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizePerforms cleanup operations prior to garbage collection. (Overrides Object.Finalize().)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodOpenForReadAsyncOpens a stream over the current file for reading file contents. (This method cannot be used in Silverlight 8.1 apps. See remarks.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)

Your app must register for a file association in the app manifest file to declare what file types (extensions) can be read from the SD card. For more info, see Auto-launching apps using file and URI associations for Windows Phone 8.


If you use this API in your app, you must specify the following capabilities in the app manifest. Otherwise, your app might not work correctly or it might exit unexpectedly.


Windows Phone 8

For more info, see App capabilities and hardware requirements for Windows Phone 8.

Windows Phone OS

Supported in: 8.1, 8.0

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.