SpatialEdmFunctions.SpatialElementCount Method (DbExpression)

.NET Framework (current version)
 

Creates a DbFunctionExpression that invokes the canonical 'SpatialElementCount' 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.Common.CommandTrees.ExpressionBuilder.Spatial
Assembly:  System.Data.Entity (in System.Data.Entity.dll)

public static DbFunctionExpression SpatialElementCount(
	this DbExpression spatialValue
)

Parameters

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

An expression that specifies the geography or geometry collection value from which the number of elements should be retrieved.

Return Value

Type: System.Data.Common.CommandTrees.DbFunctionExpression

A new DbFunctionExpression that returns either the number of elements in spatialValue or null if spatialValue is not a collection.

Exception Condition
ArgumentNullException

spatialValue

ArgumentException

spatialValue

.NET Framework
Available since 4.5
Return to top
Show: