SpatialEdmFunctions.Longitude(DbExpression) Method

Reference

Definition

Namespace:: System.Data.Common.CommandTrees.ExpressionBuilder.Spatial

Assembly:: System.Data.Entity.dll

Important

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Creates a DbFunctionExpression that invokes the canonical 'Longitude' function with the specified argument, which must have an Edm.Geography result type. The result type of the expression is Edm.Double.

public:
[System::Runtime::CompilerServices::Extension]
 static System::Data::Common::CommandTrees::DbFunctionExpression ^ Longitude(System::Data::Common::CommandTrees::DbExpression ^ geographyValue);

public static System.Data.Common.CommandTrees.DbFunctionExpression Longitude (this System.Data.Common.CommandTrees.DbExpression geographyValue);

static member Longitude : System.Data.Common.CommandTrees.DbExpression -> System.Data.Common.CommandTrees.DbFunctionExpression

<Extension()>
Public Function Longitude (geographyValue As DbExpression) As DbFunctionExpression

Parameters

geographyValue: DbExpression

An expression that specifies the geography point value from which the Longitude value should be retrieved.

Returns

DbFunctionExpression

A new DbFunctionExpression that returns either the Longitude value of geographyValue or null if geographyValue is not a point.

Exceptions

ArgumentNullException

geographyValue

ArgumentException