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PipelineDefinitionBuilderUnionWithTInput, TWith, TOutput Method

Appends a $unionWith stage to the pipeline.

Namespace:  MongoDB.Driver
Assembly:  MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.22.0+75246110ed1247226fcc7f8eb2c54ffab745693e
Syntax
public static PipelineDefinition<TInput, TOutput> UnionWith<TInput, TWith, TOutput>(
	this PipelineDefinition<TInput, TOutput> pipeline,
	IMongoCollection<TWith> withCollection,
	PipelineDefinition<TWith, TOutput> withPipeline = null
)

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
A new pipeline with an additional 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).
See Also