PipelineDefinitionBuilderProjectTInput, TIntermediate, TOutput Method (PipelineDefinitionTInput, TIntermediate, ExpressionFuncTIntermediate, TOutput, ExpressionTranslationOptions) |
Appends a project stage to the pipeline.
Namespace:
MongoDB.Driver
Assembly:
MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.8.0+cc573f3e1f48f39162b4b680e921a623e127e8fa
Syntax public static PipelineDefinition<TInput, TOutput> Project<TInput, TIntermediate, TOutput>(
this PipelineDefinition<TInput, TIntermediate> pipeline,
Expression<Func<TIntermediate, TOutput>> projection,
ExpressionTranslationOptions translationOptions = null
)
<ExtensionAttribute>
Public Shared Function Project(Of TInput, TIntermediate, TOutput) (
pipeline As PipelineDefinition(Of TInput, TIntermediate),
projection As Expression(Of Func(Of TIntermediate, TOutput)),
Optional translationOptions As ExpressionTranslationOptions = Nothing
) As PipelineDefinition(Of TInput, TOutput)
[<ExtensionAttribute>]
static member Project :
pipeline : PipelineDefinition<'TInput, 'TIntermediate> *
projection : Expression<Func<'TIntermediate, 'TOutput>> *
?translationOptions : ExpressionTranslationOptions
(* Defaults:
let _translationOptions = defaultArg translationOptions null
*)
-> PipelineDefinition<'TInput, 'TOutput>
Parameters
- pipeline
- Type: MongoDB.DriverPipelineDefinitionTInput, TIntermediate
The pipeline. - projection
- Type: System.Linq.ExpressionsExpressionFuncTIntermediate, TOutput
The projection. - translationOptions (Optional)
- Type: MongoDB.DriverExpressionTranslationOptions
The translation options.
Type Parameters
- TInput
- The type of the input documents.
- TIntermediate
- The type of the intermediate documents.
- TOutput
- The type of the output documents.
Return Value
Type:
PipelineDefinitionTInput,
TOutput
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
PipelineDefinitionTInput,
TIntermediate. 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