IndexKeysBuilderTDocumentGeoSpatialHaystackTMember, TAdditionalMember Method (ExpressionFuncTDocument, TMember, ExpressionFuncTDocument, TAdditionalMember)

Sets the key name and additional field name to create a geospatial haystack index on.

Namespace: MongoDB.Driver.Builders
Assembly: MongoDB.Driver.Legacy (in MongoDB.Driver.Legacy.dll) Version: 2.8.0+cc573f3e1f48f39162b4b680e921a623e127e8fa

Syntax

Copy

public IndexKeysBuilder<TDocument> GeoSpatialHaystack<TMember, TAdditionalMember>(
	Expression<Func<TDocument, TMember>> memberExpression,
	Expression<Func<TDocument, TAdditionalMember>> additionalMemberExpression
)

Public Function GeoSpatialHaystack(Of TMember, TAdditionalMember) ( 
	memberExpression As Expression(Of Func(Of TDocument, TMember)),
	additionalMemberExpression As Expression(Of Func(Of TDocument, TAdditionalMember))
) As IndexKeysBuilder(Of TDocument)

member GeoSpatialHaystack : 
        memberExpression : Expression<Func<'TDocument, 'TMember>> * 
        additionalMemberExpression : Expression<Func<'TDocument, 'TAdditionalMember>> -> IndexKeysBuilder<'TDocument>

Parameters

memberExpression: Type: System.Linq.ExpressionsExpressionFuncTDocument, TMember
The member expression.
additionalMemberExpression: Type: System.Linq.ExpressionsExpressionFuncTDocument, TAdditionalMember
The additional member expression.

Type Parameters

TMember: The type of the member.
TAdditionalMember: The type of the additional member.

Return Value

Type: IndexKeysBuilderTDocument
The builder (so method calls can be chained).

Reference

IndexKeysBuilderTDocument Class

GeoSpatialHaystack Overload

MongoDB.Driver.Builders Namespace