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ConcurrentDictionary<TKey, TValue>::IDictionary::Add Method

Adds the specified key and value to the dictionary.

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

private:
virtual void Add(
	Object^ key, 
	Object^ value
) sealed = IDictionary::Add

Parameters

key
Type: System::Object

The object to use as the key.

value
Type: System::Object

The object to use as the value.

Implements

IDictionary::Add(Object, Object)

ExceptionCondition
ArgumentNullException

key is nullptr.

ArgumentException

key is of a type that is not assignable to the key type of the System.Collections.Generic::Dictionary<TKey, TValue>.

-or-

value is of a type that is not assignable to the type of values in the System.Collections.Generic::Dictionary<TKey, TValue>.

-or-

A value with the same key already exists in the Dictionary<TKey, TValue>.

OverflowException

The dictionary already contains the maximum number of elements (MaxValue).

.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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