• Article

FileStream.EndRead Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Waits for the pending asynchronous read to complete.

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

Syntax

'Declaration
<SecuritySafeCriticalAttribute> _
Public Overrides Function EndRead ( _
    asyncResult As IAsyncResult _
) As Integer

[SecuritySafeCriticalAttribute]
public override int EndRead(
    IAsyncResult asyncResult
)

Parameters

  • 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.

Exceptions

Exception Condition
ArgumentNullException

asyncResult is nulla null reference (Nothing in Visual Basic).
ArgumentException

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

EndRead is called multiple times.
IOException

The stream is closed or an internal error has occurred.

Version Information

Silverlight

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

Platforms

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