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ProjectionDefinitionExtensionsIncludeTDocument Method (ProjectionDefinitionTDocument, FieldDefinitionTDocument)

Combines an existing projection with a projection that includes a field.

Namespace:  MongoDB.Driver
Assembly:  MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.19.1+3a2a09dd959482f665ffbb5df2557ec541597af4
Syntax
public static ProjectionDefinition<TDocument> Include<TDocument>(
	this ProjectionDefinition<TDocument> projection,
	FieldDefinition<TDocument> field
)

Parameters

projection
Type: MongoDB.DriverProjectionDefinitionTDocument
The projection.
field
Type: MongoDB.DriverFieldDefinitionTDocument
The field.

Type Parameters

TDocument
The type of the document.

Return Value

Type: ProjectionDefinitionTDocument
A combined projection.

Usage Note

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