Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]
Gets an object that can be used to synchronize access to the Array.
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
Public ReadOnly Property SyncRoot As Object
public Object SyncRoot { get; }
public:
virtual property Object^ SyncRoot {
Object^ get () sealed;
}
abstract SyncRoot : Object with get
override SyncRoot : Object with get
final function get SyncRoot () : Object
Property Value
Type: System. . :: . .Object
An object that can be used to synchronize access to the Array.
Implements
Remarks
This property implements the System.Collections..::..ICollection interface.
.NET Framework classes based on Array provide their own synchronized version of the collection using the SyncRoot property.
Classes that use arrays can also implement their own synchronization using the SyncRoot property. The synchronizing code must perform operations on the SyncRoot of the collection, not directly on the collection. This ensures proper operation of collections that are derived from other objects. Specifically, it maintains proper synchronization with other threads that might be simultaneously modifying the collection. Note that some implementations of SyncRoot might return the Array itself.
Enumerating through a collection is intrinsically not a thread safe procedure. Even when a collection is synchronized, other threads can still modify the collection, which causes the enumerator to throw an exception. To guarantee thread safety during enumeration, you can either lock the collection during the entire enumeration or catch the exceptions resulting from changes made by other threads.
Retrieving the value of this property is an O(1) operation.
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see dd66cd4c-b087-415f-9c3e-94e3a1835f74.