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Monitor.TryEnter Method (Object, Int32)

Attempts, for the specified number of milliseconds, to acquire an exclusive lock on the specified object.

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

public static function TryEnter(
	obj : Object, 
	millisecondsTimeout : int
) : boolean

Parameters

obj
Type: System.Object

The object on which to acquire the lock.

millisecondsTimeout
Type: System.Int32

The number of milliseconds to wait for the lock.

Return Value

Type: System.Boolean
true if the current thread acquires the lock; otherwise, false.

ExceptionCondition
ArgumentNullException

The obj parameter is a null reference (Nothing in Visual Basic).

ArgumentOutOfRangeException

millisecondsTimeout is negative, and not equal to Infinite.

If the millisecondsTimeout parameter equals Infinite, this method is equivalent to Enter. If millisecondsTimeout equals 0, this method is equivalent to TryEnter.

NoteNote:

Use Monitor to lock objects (that is, reference types), not value types. For details, see Enter and the conceptual topic Monitors.

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.

.NET Framework

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

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