FileStream::Length Property

.NET Framework (current version)

Gets the length in bytes of the stream.

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

Syntax

public:
property long long Length {
	virtual long long get() override;
}

Property Value

Type: System::Int64

A long value representing the length of the stream in bytes.

Exceptions

Exception	Condition
NotSupportedException	CanSeek for this stream is false.
IOException	An I/O error, such as the file being closed, occurred.

Remarks

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

Examples

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

C++

if ( s->Length == s->Position )
{
   Console::WriteLine( "End of file has been reached." );
}

Version Information

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