SqlGeography.STGeometryN 方法
Returns a specified geography element in a GeometryCollection or one of its subtypes.
命名空間： Microsoft.SqlServer.Types
組件： Microsoft.SqlServer.Types (在 Microsoft.SqlServer.Types.dll 中)
語法
'宣告
<SqlMethodAttribute(IsDeterministic := True, IsPrecise := True)> _
Public Function STGeometryN ( _
n As Integer _
) As SqlGeography
'用途
Dim instance As SqlGeography
Dim n As Integer
Dim returnValue As SqlGeography
returnValue = instance.STGeometryN(n)
[SqlMethodAttribute(IsDeterministic = true, IsPrecise = true)]
public SqlGeography STGeometryN(
int n
)
[SqlMethodAttribute(IsDeterministic = true, IsPrecise = true)]
public:
SqlGeography^ STGeometryN(
int n
)
[<SqlMethodAttribute(IsDeterministic = true, IsPrecise = true)>]
member STGeometryN :
n:int -> SqlGeography
public function STGeometryN(
n : int
) : SqlGeography
參數
- n
型別：System.Int32
An int expression between 1 and the number of SqlGeography instances in the GeometryCollection.
傳回值
型別：Microsoft.SqlServer.Types.SqlGeography
A SqlGeography element from the specified instance in the GeometryCollection.
備註
When this method is used on a subtype of a GeometryCollection, such as MultiPoint or MultiLineString, this method returns the SqlGeography instance if called with N=1.
This method returns null if the parameter is larger than the result of STNumGeometries and will throw an ArgumentOutOfRangeException if the expression parameter is less than 1.