IAggregateFluentExtensions.ReplaceRoot(TResult, TNewResult) Method

IAggregateFluentExtensions.ReplaceRoot<TResult, TNewResult> Method

Appends a $replaceRoot stage to the pipeline.

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

Syntax

public static IAggregateFluent<TNewResult> ReplaceRoot<TResult, TNewResult>(
	this IAggregateFluent<TResult> aggregate,
	Expression<Func<TResult, TNewResult>> newRoot
)

<ExtensionAttribute>
Public Shared Function ReplaceRoot(Of TResult, TNewResult) ( 
	aggregate As IAggregateFluent(Of TResult),
	newRoot As Expression(Of Func(Of TResult, TNewResult))
) As IAggregateFluent(Of TNewResult)

[<ExtensionAttribute>]
static member ReplaceRoot : 
        aggregate : IAggregateFluent<'TResult> * 
        newRoot : Expression<Func<'TResult, 'TNewResult>> -> IAggregateFluent<'TNewResult>

Parameters

aggregate: Type: MongoDB.Driver.IAggregateFluent<TResult>
The aggregate.
newRoot: Type: System.Linq.Expressions.Expression<Func<TResult, TNewResult>>
The new root.

Type Parameters

TResult: The type of the result.
TNewResult: The type of the new result.

Return Value

Type: IAggregateFluent<TNewResult>
The fluent aggregate interface.

Usage Note

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

IAggregateFluentExtensions Class

MongoDB.Driver Namespace