This topic has not yet been rated - Rate this topic

FileStream::Unlock Method

.NET Framework 3.5

Other Versions

Allows access by other processes to all or part of a file that was previously locked.

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

Syntax

C++

JScript

public:
virtual void Unlock(
	long long position, 
	long long length
)

Parameters

position: Type: System::Int64
The beginning of the range to unlock.

length: Type: System::Int64
The range to be unlocked.

Exceptions

Exception	Condition
ArgumentOutOfRangeException	position or length is negative.

Remarks

For a list of common I/O tasks, see Common I/O Tasks.

Examples

This code example is part of a larger example provided for the Lock method.

C++

// Unlock the specified part of the file. 
case 'U':
   try
   {
      fileStream->Unlock( textLength - 1, byteCount );
      Console::WriteLine( "The specified part " 
      "of file has been unlocked." );
   }
   catch ( IOException^ e ) 
   {
      Console::WriteLine( "{0}: The specified part of file is " 
      "not locked by the current process.", e->GetType()->Name );
   }

   break;

default:

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

Reference

FileStream Class

FileStream Members

System.IO Namespace

Other Resources

File and Stream I/O

How to: Read Text from a File

How to: Write Text to a File

Did you find this helpful? Yes No

Not accurate

Not enough depth

Need more code examples

(1500 characters remaining)

Community Additions

ADD