LinqExtensions.SelectMany<T, TCollection, TResult>(Vector<T>, Func<T, IEnumerable<TCollection>>, Func<T, TCollection, TResult>) Method

Projects each element of a vector to a vector and flattens the resulting vectors into one vector, and applies a selector function to each element of the flattened vector.

Definition

Namespace: Extreme.DataAnalysis.Linq
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.23

public static IEnumerable<TResult> SelectMany<T, TCollection, TResult>(
	this Vector<T> vector,
	Func<T, IEnumerable<TCollection>> collectionSelector,
	Func<T, TCollection, TResult> resultSelector
)

Visual Basic

<ExtensionAttribute>
Public Shared Function SelectMany(Of T, TCollection, TResult) ( 
	vector As Vector(Of T),
	collectionSelector As Func(Of T, IEnumerable(Of TCollection)),
	resultSelector As Func(Of T, TCollection, TResult)
) As IEnumerable(Of TResult)

C++/CLI

public:
[ExtensionAttribute]
generic<typename T, typename TCollection, typename TResult>
static IEnumerable<TResult>^ SelectMany(
	Vector<T>^ vector, 
	Func<T, IEnumerable<TCollection>^>^ collectionSelector, 
	Func<T, TCollection, TResult>^ resultSelector
)

[<ExtensionAttribute>]
static member SelectMany : 
        vector : Vector<'T> * 
        collectionSelector : Func<'T, IEnumerable<'TCollection>> * 
        resultSelector : Func<'T, 'TCollection, 'TResult> -> IEnumerable<'TResult>

Parameters

vector Vector<T>: A vector to project.
collectionSelector Func<T, IEnumerable<TCollection>>: A function to apply to each element of the input.
resultSelector Func<T, TCollection, TResult>: A function to apply to each element of the intermediate vector.

Type Parameters

T: The type of the elements of the vector.
TCollection: The type of the intermediate elements.
TResult: The type of the result.

Return Value

IEnumerable<TResult>
A vector whose elements are the result of invoking the one-to-many function collectionSelector on each element of vector, and then applying resultSelector to each element of the intermediate result.

Usage Note

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