Windows apps
Collapse the table of content
Expand the table of content
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.

FileStream.EndRead Method

Waits for the pending asynchronous read to complete.

Namespace:  System.IO
Assembly:  mscorlib (in mscorlib.dll)

public override int EndRead(
	IAsyncResult asyncResult


Type: System.IAsyncResult
The reference to the pending asynchronous request to wait for.

Return Value

Type: System.Int32
The number of bytes read from the stream, between 0 and the number of bytes you requested. Streams only return 0 at the end of the stream, otherwise, they should block until at least 1 byte is available.


asyncResult is null.


This IAsyncResult object was not created by calling BeginRead on this class.


EndRead is called multiple times.


The stream is closed or an internal error has occurred.


Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

© 2018 Microsoft