ProjectionDefinitionExtensionsIncludeTDocument Method (ProjectionDefinitionTDocument, ExpressionFuncTDocument, Object) |
Combines an existing projection with a projection that includes a field.
Namespace: MongoDB.DriverAssembly: MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.2.0
Syntax public static ProjectionDefinition<TDocument> Include<TDocument>(
this ProjectionDefinition<TDocument> projection,
Expression<Func<TDocument, Object>> field
)
<ExtensionAttribute>
Public Shared Function Include(Of TDocument) (
projection As ProjectionDefinition(Of TDocument),
field As Expression(Of Func(Of TDocument, Object))
) As ProjectionDefinition(Of TDocument)
[<ExtensionAttribute>]
static member Include :
projection : ProjectionDefinition<'TDocument> *
field : Expression<Func<'TDocument, Object>> -> ProjectionDefinition<'TDocument>
Parameters
- projection
- Type: MongoDB.DriverProjectionDefinitionTDocument
The projection. - field
- Type: System.Linq.ExpressionsExpressionFuncTDocument, Object
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