Dictionary<TKey,TValue>.ICollection.IsSynchronized Property
Definition
Important
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Gets a value that indicates whether access to the ICollection is synchronized (thread safe).
property bool System::Collections::ICollection::IsSynchronized { bool get(); };bool System.Collections.ICollection.IsSynchronized { get; }member this.System.Collections.ICollection.IsSynchronized : bool ReadOnly Property IsSynchronized As Boolean Implements ICollection.IsSynchronizedProperty Value
true if access to the ICollection is synchronized (thread safe); otherwise, false. In the default implementation of Dictionary<TKey,TValue>, this property always returns false.
Implements
Remarks
Default implementations of collections in the System.Collections.Generic namespace are not synchronized.
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 can cause 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.
The SyncRoot property returns an object that can be used to synchronize access to the ICollection. Synchronization is effective only if all threads lock the object before accessing the collection.
Getting the value of this property is an O(1) operation.
