SpatialEdmFunctions.StartPoint(DbExpression) Method
Definition
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Creates a DbFunctionExpression that invokes the canonical 'StartPoint' function with the specified argument, which must have an Edm.Geography or Edm.Geometry result type. The result type is the same as that of spatialValue.
public static System.Data.Entity.Core.Common.CommandTrees.DbFunctionExpression StartPoint (this System.Data.Entity.Core.Common.CommandTrees.DbExpression spatialValue);static member StartPoint : System.Data.Entity.Core.Common.CommandTrees.DbExpression -> System.Data.Entity.Core.Common.CommandTrees.DbFunctionExpression<Extension()>
Public Function StartPoint (spatialValue As DbExpression) As DbFunctionExpressionParameters
- spatialValue
- DbExpression
An expression that specifies the spatial curve value from which the start point should be retrieved.
Returns
A new DbFunctionExpression that returns either the start point of spatialValue or null if spatialValue is not a curve.
Applies to
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Entity Framework