DictionaryExtensions.GetValueOrDefault(TKey, TValue) Method (IDictionary(TKey, TValue), TKey)

DictionaryExtensionsGetValueOrDefaultTKey, TValue Method (IDictionaryTKey, TValue, TKey)

Gets a value from a dictionary. If they value is not there, adds the default value to the dictionary and returns that. Not thread safe because it can add items to the dictionary.

Namespace: Bio.Util
Assembly: Bio.Core (in Bio.Core.dll) Version: 2.0.0.1 (2.0.0.1)

Syntax

C++

Copy

public static TValue GetValueOrDefault<TKey, TValue>(
	this IDictionary<TKey, TValue> dictionary,
	TKey key
)
where TValue : new()

<ExtensionAttribute>
Public Shared Function GetValueOrDefault(Of TKey, TValue As New) ( 
	dictionary As IDictionary(Of TKey, TValue),
	key As TKey
) As TValue

public:
[ExtensionAttribute]
generic<typename TKey, typename TValue>
where TValue : gcnew()
static TValue GetValueOrDefault(
	IDictionary<TKey, TValue>^ dictionary, 
	TKey key
)

[<ExtensionAttribute>]
static member GetValueOrDefault : 
        dictionary : IDictionary<'TKey, 'TValue> * 
        key : 'TKey -> 'TValue  when 'TValue : new()

Parameters

dictionary: Type: System.Collections.GenericIDictionaryTKey, TValue
The dictionary
key: Type: TKey
The key of the value to retrieve.

Type Parameters

TKey: The type of the dictionary's key
TValue: The type of the dictionary's value

Return Value

Type: TValue
A value for this key.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IDictionaryTKey, TValue. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Reference

DictionaryExtensions Class

GetValueOrDefault Overload

Bio.Util Namespace