Dictionary<TKey,TValue>.KeyCollection.ICollection<TKey>.IsReadOnly Property

Reference

Definition

Namespace:: System.Collections.Generic

Assembly:: System.Collections.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Source:: Dictionary.cs

Source:: Dictionary.cs

Source:: Dictionary.cs

Important

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

property bool System::Collections::Generic::ICollection<TKey>::IsReadOnly { bool get(); };

bool System.Collections.Generic.ICollection<TKey>.IsReadOnly { get; }

member this.System.Collections.Generic.ICollection<TKey>.IsReadOnly : bool

 ReadOnly Property IsReadOnly As Boolean Implements ICollection(Of TKey).IsReadOnly

Property Value

Boolean

true if the ICollection<T> is read-only; otherwise, false. In the default implementation of Dictionary<TKey,TValue>.KeyCollection, this property always returns true.

Implements

IsReadOnly

Remarks

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

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

Applies to

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