ExtensionMethods.ToDictionaryIgnoringDuplicates<TSource, TKey, TElement> Method (IEnumerable<TSource>, Func<TSource, TKey>, Func<TSource, TElement>)

Creates a Dictionary<TKey, TValue> from an IEnumerable<T> according to specified key selector and element selector functions. Diplicate keys will not be added to the dictionary.

Namespace: SanteDB.Core
Assembly: SanteDB.Core.Api (in SanteDB.Core.Api.dll) Version: 3.0.481-alpha

Syntax

C++

Copy

public static Dictionary<TKey, TElement> ToDictionaryIgnoringDuplicates<TSource, TKey, TElement>(
	this IEnumerable<TSource> source,
	Func<TSource, TKey> keySelector,
	Func<TSource, TElement> valueSelector
)

<ExtensionAttribute>
Public Shared Function ToDictionaryIgnoringDuplicates(Of TSource, TKey, TElement) ( 
	source As IEnumerable(Of TSource),
	keySelector As Func(Of TSource, TKey),
	valueSelector As Func(Of TSource, TElement)
) As Dictionary(Of TKey, TElement)

public:
[ExtensionAttribute]
generic<typename TSource, typename TKey, typename TElement>
static Dictionary<TKey, TElement>^ ToDictionaryIgnoringDuplicates(
	IEnumerable<TSource>^ source, 
	Func<TSource, TKey>^ keySelector, 
	Func<TSource, TElement>^ valueSelector
)

[<ExtensionAttribute>]
static member ToDictionaryIgnoringDuplicates : 
        source : IEnumerable<'TSource> * 
        keySelector : Func<'TSource, 'TKey> * 
        valueSelector : Func<'TSource, 'TElement> -> Dictionary<'TKey, 'TElement>

Parameters

source: Type: System.Collections.Generic.IEnumerable<TSource>
An IEnumerable<T> to create a Dictionary<TKey, TValue> from.
keySelector: Type: System.Func<TSource, TKey>
A function to extract a key from each element.
valueSelector: Type: System.Func<TSource, TElement>
A transform function to produce a result element value from each element.

Type Parameters

TSource: The type of the elements of source.
TKey: The type of the key returned by keySelector.
TElement: The type of the value returned by elementSelector.

Return Value

Type: Dictionary<TKey, TElement>
A Dictionary<TKey, TValue> that contains values of type TElement selected from the input sequence.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerable<TSource>. 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

ExtensionMethods Class

ToDictionaryIgnoringDuplicates Overload

SanteDB.Core Namespace