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
.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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