SpatialEdmFunctions.SpatialElementAt(DbExpression, DbExpression) Method
Definition
Important
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Creates a DbFunctionExpression that invokes the canonical 'SpatialElementAt' function with the specified arguments. The first argument must have an Edm.Geography or Edm.Geometry result type. The second argument must have an integer numeric result type. The result type of the expression is the same as that of spatialValue.
public:
[System::Runtime::CompilerServices::Extension]
static System::Data::Common::CommandTrees::DbFunctionExpression ^ SpatialElementAt(System::Data::Common::CommandTrees::DbExpression ^ spatialValue, System::Data::Common::CommandTrees::DbExpression ^ indexValue);public static System.Data.Common.CommandTrees.DbFunctionExpression SpatialElementAt (this System.Data.Common.CommandTrees.DbExpression spatialValue, System.Data.Common.CommandTrees.DbExpression indexValue);static member SpatialElementAt : System.Data.Common.CommandTrees.DbExpression * System.Data.Common.CommandTrees.DbExpression -> System.Data.Common.CommandTrees.DbFunctionExpression<Extension()>
Public Function SpatialElementAt (spatialValue As DbExpression, indexValue As DbExpression) As DbFunctionExpressionParameters
- spatialValue
- DbExpression
An expression that specifies the geography or geometry collection value.
- indexValue
- DbExpression
An expression that specifies the position of the element to be retrieved from within the geometry or geography collection.
Returns
A new DbFunctionExpression that returns either the collection element at position indexValue in spatialValue or null if spatialValue is not a collection.
Exceptions
indexValue
spatialValue
indexValue
