MongoQueryable.SelectMany(TSource, TResult) Method (IMongoQueryable(TSource), Expression(Func(TSource, IEnumerable(TResult))))

SelectMany(TSource, TCollection, TResult) Method (IMongoQueryable(TSource), Expression(Func(TSource, IEnumerable(TCollection))), Expression(Func(TSource, TCollection, TResult)))

MongoQueryable.SelectMany<TSource, TResult> Method (IMongoQueryable<TSource>, Expression<Func<TSource, IEnumerable<TResult>>>)

Projects each element of a sequence to an IEnumerable< T> and combines the resulting sequences into one sequence.

Namespace: MongoDB.Driver.Linq
Assembly: MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.4.1

Syntax

Copy

public static IMongoQueryable<TResult> SelectMany<TSource, TResult>(
	this IMongoQueryable<TSource> source,
	Expression<Func<TSource, IEnumerable<TResult>>> selector
)

<ExtensionAttribute>
Public Shared Function SelectMany(Of TSource, TResult) ( 
	source As IMongoQueryable(Of TSource),
	selector As Expression(Of Func(Of TSource, IEnumerable(Of TResult)))
) As IMongoQueryable(Of TResult)

[<ExtensionAttribute>]
static member SelectMany : 
        source : IMongoQueryable<'TSource> * 
        selector : Expression<Func<'TSource, IEnumerable<'TResult>>> -> IMongoQueryable<'TResult>

Parameters

source: Type: MongoDB.Driver.Linq.IMongoQueryable<TSource>
A sequence of values to project.
selector: Type: System.Linq.Expressions.Expression<Func<TSource, IEnumerable<TResult>>>
A projection function to apply to each element.

Type Parameters

TSource: The type of the elements of source.
TResult: The type of the elements of the sequence returned by the function represented by selector.

Return Value

Type: IMongoQueryable<TResult>
An IMongoQueryable< T> whose elements are the result of invoking a one-to-many projection function on each element of the input sequence.

Usage Note

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

MongoQueryable Class

SelectMany Overload

MongoDB.Driver.Linq Namespace