Length Property

FileStream.Length Property


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.

Exception Condition

CanSeek for this stream is false.


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

For a list of common file and directory operations, see Common I/O Tasks.

The following example uses the Length and Position properties to check for an end-of-file condition.

if( s.Length==s.Position )
   Console.WriteLine("End of file has been reached.");

Universal Windows Platform
Available since 10
.NET Framework
Available since 1.1
Available since 2.0
Windows Phone Silverlight
Available since 7.0
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