ForEachItems.IsSynchronized Property
Definition
Important
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Returns a Boolean that indicates whether access to the ForEachItems collection is synchronized (thread-safe).
public:
property bool IsSynchronized { bool get(); };
public bool IsSynchronized { get; }
member this.IsSynchronized : bool
Public ReadOnly Property IsSynchronized As Boolean
Property Value
true if access to the collection is synchronized (thread-safe); otherwise, false. The default is false.
Implements
Examples
The ArrayList
is a .NET Framework Class that inherits and implements the IsSynchronized
property. The following code example shows how to synchronize an ArrayList
, determine if an ArrayList
is synchronized and use a synchronized ArrayList
.
using System;
using System.Collections;
public class SamplesArrayList
{
public static void Main()
{
// Creates and initializes a new ArrayList.
ArrayList myAL = new ArrayList();
myAL.Add( "The" );
myAL.Add( "quick" );
myAL.Add( "brown" );
myAL.Add( "fox" );
// Creates a synchronized wrapper around the ArrayList.
ArrayList mySyncdAL = ArrayList.Synchronized( myAL );
// Displays the sychronization status of both ArrayLists.
Console.WriteLine( "myAL is {0}.", myAL.IsSynchronized ? "synchronized" : "not synchronized" );
Console.WriteLine( "mySyncdAL is {0}.", mySyncdAL.IsSynchronized ? "synchronized" : "not synchronized" );
}
}
Imports System
Imports System.Collections
Public Class SamplesArrayList
Public Shared Sub Main()
' Creates and initializes a new ArrayList.
Dim myAL As ArrayList = New ArrayList()
myAL.Add("The")
myAL.Add("quick")
myAL.Add("brown")
myAL.Add("fox")
' Creates a synchronized wrapper around the ArrayList.
Dim mySyncdAL As ArrayList = ArrayList.Synchronized(myAL)
' Displays the sychronization status of both ArrayLists.
Console.WriteLine("myAL is {0}.", myAL.IsSynchronized ? "synchronized" : "not synchronized")
Console.WriteLine("mySyncdAL is {0}.", mySyncdAL.IsSynchronized ? "synchronized" : "not synchronized")
End Sub
End Class
Sample Output:
myAL is not synchronized.
mySyncdAL is synchronized.
Remarks
Implements ICollection.IsSynchronized. If a collection is thread safe, the IsSynchronized property returns true
, and the programmer does not have to do anything to keep the collection thread safe.
If the property returns false
, then the SyncRoot property returns an object that can be used with the C# lock keyword. For more information, see ICollection.IsSynchronized.