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ReaderWriterLockSlim.IsReadLockHeld Property

Gets a value that indicates whether the current thread has entered the lock in read mode.

Namespace:  System.Threading
Assemblies:   System.Threading (in System.Threading.dll)
  System.Core (in System.Core.dll)

public bool IsReadLockHeld { get; }

Property Value

Type: System.Boolean
true if the current thread has entered read mode; otherwise, false.

This property is intended for use in asserts or for other debugging purposes. Do not use it to control the flow of program execution.

The following example shows how to use the IsReadLockHeld property to generate an assert if the current thread has entered read mode unexpectedly.

using (ReaderWriterLockSlim rwLock = new ReaderWriterLockSlim()) {


...


Debug.Assert(!rwLock.IsReadLockHeld,
    String.Format("Thread {0} already held the read lock when MyFunction began executing.",
                  Thread.CurrentThread.ManagedThreadId));

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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