Windows Dev Center

Information
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.Length Property

When it is called by trusted applications, gets the length in bytes of the stream.

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

public override long Length { get; }

Property Value

Type: System.Int64
A long value representing the length of the stream in bytes.

ExceptionCondition
NotSupportedException

CanSeek for this stream is false.

IOException

An I/O error occurs, such as the file being closed.

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

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

Community Additions

Show:
© 2015 Microsoft