PipelineDefinitionBuilderUnionWithTInput, TWith, TOutput Method

Appends a $unionWith stage to the pipeline.

Namespace: MongoDB.Driver
Assembly: MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.17.0+b316340e6cc3a8bfc8638dc31b54fbbfe41bfcb2

Syntax

Copy

public static PipelineDefinition<TInput, TOutput> UnionWith<TInput, TWith, TOutput>(
	this PipelineDefinition<TInput, TOutput> pipeline,
	IMongoCollection<TWith> withCollection,
	PipelineDefinition<TWith, TOutput> withPipeline = null
)

<ExtensionAttribute>
Public Shared Function UnionWith(Of TInput, TWith, TOutput) ( 
	pipeline As PipelineDefinition(Of TInput, TOutput),
	withCollection As IMongoCollection(Of TWith),
	Optional withPipeline As PipelineDefinition(Of TWith, TOutput) = Nothing
) As PipelineDefinition(Of TInput, TOutput)

[<ExtensionAttribute>]
static member UnionWith : 
        pipeline : PipelineDefinition<'TInput, 'TOutput> * 
        withCollection : IMongoCollection<'TWith> * 
        ?withPipeline : PipelineDefinition<'TWith, 'TOutput> 
(* Defaults:
        let _withPipeline = defaultArg withPipeline null
*)
-> PipelineDefinition<'TInput, 'TOutput>

Parameters

pipeline: Type: MongoDB.DriverPipelineDefinitionTInput, TOutput
The pipeline.
withCollection: Type: MongoDB.DriverIMongoCollectionTWith
The with collection.
withPipeline (Optional): Type: MongoDB.DriverPipelineDefinitionTWith, TOutput
The with pipeline.

Type Parameters

TInput: The type of the input documents.
TWith: The type of the with collection documents.
TOutput: The type of the output documents.

Return Value

Type: PipelineDefinitionTInput, TOutput
The stage.

Usage Note

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

PipelineDefinitionBuilder Class