QueryableExtensionMethodsToDictionaryAsyncTSource, TKey Method (IQueryableTSource, FuncTSource, TKey, CancellationToken)

Creates a Dictionary from the source by executing the source asynchronously, then enumerating it according to a specified key selector function.

Namespace: SD.LLBLGen.Pro.LinqSupportClasses
Assembly: SD.LLBLGen.Pro.ORMSupportClasses (in SD.LLBLGen.Pro.ORMSupportClasses.dll) Version: 5.11.0.0 (5.11.23.1114)

Syntax

Copy

public static Task<Dictionary<TKey, TSource>> ToDictionaryAsync<TSource, TKey>(
	this IQueryable<TSource> source,
	Func<TSource, TKey> keySelector,
	CancellationToken cancellationToken
)

<ExtensionAttribute>
Public Shared Function ToDictionaryAsync(Of TSource, TKey) ( 
	source As IQueryable(Of TSource),
	keySelector As Func(Of TSource, TKey),
	cancellationToken As CancellationToken
) As Task(Of Dictionary(Of TKey, TSource))

Parameters

source: Type: System.LinqIQueryableTSource
the source
keySelector: Type: SystemFuncTSource, TKey
the key selector function
cancellationToken: Type: System.ThreadingCancellationToken
The cancellation token

Type Parameters

TSource: the type of the elements in source
TKey: the type of the key

Return Value

Type: TaskDictionaryTKey, TSource
the results of source in a new dictionary with the results of the keyselector as keys

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IQueryableTSource. 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).

Remarks

Not usable wrapped inside a Linq query. Use this method to execute a linq query asynchronously

Reference

QueryableExtensionMethods Class

ToDictionaryAsync Overload

SD.LLBLGen.Pro.LinqSupportClasses Namespace