| 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: 2.6.0+Branch.origin/v2.6.x.Sha.593796a7b35dc59243383bcc684de296a5468f2e
 Syntax
Syntaxpublic 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).
            
 See Also
See Also