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ConcurrentDictionary<TKey, TValue>.ICollection<KeyValuePair<TKey, TValue>>.IsReadOnly Property

.NET Framework 4.6 and 4.5

Gets a value indicating whether the ICollection is read-only.

Namespace:  System.Collections.Concurrent
Assemblies:   mscorlib (in mscorlib.dll)
  System.Collections.Concurrent (in System.Collections.Concurrent.dll)

bool ICollection<KeyValuePair<TKey, TValue>>.IsReadOnly { get; }

Property Value

Type: System.Boolean
true if the ICollection is read-only; otherwise, false.

Implements

ICollection<T>.IsReadOnly

A collection that is read-only does not allow the addition, removal, or modification of elements after the collection is created.

A collection that is read-only is simply a collection with a wrapper that prevents modifying the collection; therefore, if changes are made to the underlying collection, the read-only collection reflects those changes.

Retrieving the value of this property is an O(1) operation.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1
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