SpatialEdmFunctions.Elevation(DbExpression) Method

  • Reference

Definition

Namespace:
System.Data.Entity.Core.Common.CommandTrees.ExpressionBuilder.Spatial
Assembly:
EntityFramework.dll

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

public static System.Data.Entity.Core.Common.CommandTrees.DbFunctionExpression Elevation (this System.Data.Entity.Core.Common.CommandTrees.DbExpression spatialValue);
static member Elevation : System.Data.Entity.Core.Common.CommandTrees.DbExpression -> System.Data.Entity.Core.Common.CommandTrees.DbFunctionExpression
<Extension()>
Public Function Elevation (spatialValue As DbExpression) As DbFunctionExpression

Parameters

spatialValue
DbExpression

An expression that specifies the spatial point value from which the elevation (Z co-ordinate) value should be retrieved.

Returns

DbFunctionExpression

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

Applies to