SpatialEdmFunctions.PointCount Method (DbExpression)

 

Creates a DbFunctionExpression that invokes the canonical 'PointCount' function with the specified argument, which must have an Edm.Geography or Edm.Geometry result type. The result type of the expression is Edm.Int32.

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

public static DbFunctionExpression PointCount(
	this DbExpression spatialValue
)

Parameters

spatialValue
Type: System.Data.Entity.Core.Common.CommandTrees.DbExpression

An expression that specifies the spatial line string value from which the number of points should be retrieved.

Return Value

Type: System.Data.Entity.Core.Common.CommandTrees.DbFunctionExpression

A new DbFunctionExpression that returns either the number of points in spatialValue or null if spatialValue is not a line string.