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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: 2.4.1
public static PipelineDefinition<TInput, TOutput> Project<TInput, TIntermediate, TOutput>(
	this PipelineDefinition<TInput, TIntermediate> pipeline,
	Expression<Func<TIntermediate, TOutput>> projection,
	ExpressionTranslationOptions translationOptions = null


Type: MongoDB.DriverPipelineDefinitionTInput, TIntermediate
The pipeline.
Type: System.Linq.ExpressionsExpressionFuncTIntermediate, TOutput
The projection.
translationOptions (Optional)
Type: MongoDB.DriverExpressionTranslationOptions
The translation options.

Type Parameters

The type of the input documents.
The type of the intermediate documents.
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