Dictionary<TKey,TValue>.ICollection<KeyValuePair<TKey,TValue>>.Add Method

Reference

Definition

Namespace:: System.Collections.Generic

Assemblies:: mscorlib.dll, System.Collections.dll

Assemblies:: netstandard.dll, System.Collections.dll

Assembly:: System.Collections.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Source:: Dictionary.cs

Source:: Dictionary.cs

Source:: Dictionary.cs

Important

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Adds the specified value to the ICollection<T> with the specified key.

 virtual void System.Collections.Generic.ICollection<System.Collections.Generic.KeyValuePair<TKey,TValue>>.Add(System::Collections::Generic::KeyValuePair<TKey, TValue> keyValuePair) = System::Collections::Generic::ICollection<System::Collections::Generic::KeyValuePair<TKey, TValue>>::Add;

void ICollection<KeyValuePair<TKey,TValue>>.Add(System.Collections.Generic.KeyValuePair<TKey,TValue> keyValuePair);

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

Sub Add (keyValuePair As KeyValuePair(Of TKey, TValue)) Implements ICollection(Of KeyValuePair(Of TKey, TValue)).Add

Parameters

keyValuePair: KeyValuePair<TKey,TValue>

The KeyValuePair<TKey,TValue> structure representing the key and value to add to the Dictionary<TKey,TValue>.

Implements

Add(T)

Exceptions

ArgumentNullException

The key of keyValuePair is null.

ArgumentException

An element with the same key already exists in the Dictionary<TKey,TValue>.

Applies to

Product	Versions
.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	2.0, 3.0, 3.5, 4.0, 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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