ReadOnlyDictionary<TKey,TValue>.ValueCollection.ICollection<TValue>.Add Method

Reference

Definition

Namespace:: System.Collections.ObjectModel

Assemblies:: mscorlib.dll, System.ObjectModel.dll

Assemblies:: netstandard.dll, System.Runtime.dll

Assemblies:: netstandard.dll, System.ObjectModel.dll

Assembly:: System.ObjectModel.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Source:: ReadOnlyDictionary.cs

Source:: ReadOnlyDictionary.cs

Source:: ReadOnlyDictionary.cs

Important

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Throws a NotSupportedException exception in all cases.

 virtual void System.Collections.Generic.ICollection<TValue>.Add(TValue item) = System::Collections::Generic::ICollection<TValue>::Add;

void ICollection<TValue>.Add(TValue item);

abstract member System.Collections.Generic.ICollection<TValue>.Add : 'Value -> unit
override this.System.Collections.Generic.ICollection<TValue>.Add : 'Value -> unit

Sub Add (item As TValue) Implements ICollection(Of TValue).Add

Parameters

item: TValue

The object to add to the collection.

Implements

Add(T)

Exceptions

NotSupportedException

In all cases.

Remarks

This member is an explicit interface member implementation. It can be used only when the ReadOnlyDictionary<TKey,TValue>.ValueCollection instance is cast to an ICollection<T> interface. The ICollection<T> interface specifies that the Add method should throw a NotSupportedException exception if the collection that implements the interface is read-only.

Applies to

Продукт	Версии
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	1.0, 1.1, 1.2, 1.3, 1.4, 1.6, 2.0, 2.1
UWP	10.0

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