CSharpTest.Net
GetOrAdd Method
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CSharpTest.Net.Library Assembly > CSharpTest.Net.Collections Namespace > IConcurrentDictionary<TKey,TValue> Interface : GetOrAdd Method

key
The key of the element to add.
fnCreate
Constructs a new value for the key.

Glossary Item Box

Adds a key/value pair to the IDictionary if the key does not already exist.

Syntax

Visual Basic (Declaration) 
Function GetOrAdd( _
   ByVal key As TKey, _
   ByVal fnCreate As Converter(Of TKey,TValue) _
) As TValue
C# 
TValue GetOrAdd( 
   TKey key,
   Converter<TKey,TValue> fnCreate
)

Parameters

key
The key of the element to add.
fnCreate
Constructs a new value for the key.

Exceptions

ExceptionDescription
System.NotSupportedExceptionThe IDictionary is read-only.

Requirements

Target Platforms: Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7

See Also

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