IStringKeyedDictionaryTValueGetValueOrDefaultTActualValue(ReadOnlySpanChar, TActualValue) Method

Tries to get the typed value from the dictionary for the given key. The defaultValue parameter can have a more specific type than TValue.

Definition

Namespace: KGySoft.Collections
Assembly: KGySoft.CoreLibraries (in KGySoft.CoreLibraries.dll) Version: 9.0.0

C#

TActualValue GetValueOrDefault<TActualValue>(
	ReadOnlySpan<char> key,
	TActualValue defaultValue = null
)
where TActualValue : TValue

VB

Function GetValueOrDefault(Of TActualValue As TValue) ( 
	key As ReadOnlySpan(Of Char),
	Optional defaultValue As TActualValue = Nothing
) As TActualValue

C++

generic<typename TActualValue>
where TActualValue : TValue
TActualValue GetValueOrDefault(
	ReadOnlySpan<wchar_t> key, 
	TActualValue defaultValue = nullptr
)

F#

abstract GetValueOrDefault : 
        key : ReadOnlySpan<char> * 
        ?defaultValue : 'TActualValue 
(* Defaults:
        let _defaultValue = defaultArg defaultValue null
*)
-> 'TActualValue  when 'TActualValue : 'TValue

Parameters

key ReadOnlySpanChar: The key whose value to get.
defaultValue TActualValue (Optional): The default value to return if key was not found or its actual type is not compatible with TActualValue. This parameter is optional.
Default value: if TActualValue is a reference type; otherwise, the bitwise zero value of TActualValue.

Type Parameters

TActualValue: The type of the value with the corresponding key to get.

Return Value

TActualValue
The found value or defaultValue if key was not found or its value cannot be cast to TActualValue.

Remarks

Note

This member is available only in .NET Core 2.1/.NET Standard 2.1 and above.