SqlGeography.RingN 方法
Returns the specified ring of the SqlGeography instance: 1 ≤ n ≤ NumRings().
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 RingN ( _
n As Integer _
) As SqlGeography
'用途
Dim instance As SqlGeography
Dim n As Integer
Dim returnValue As SqlGeography
returnValue = instance.RingN(n)
[SqlMethodAttribute(IsDeterministic = true, IsPrecise = true)]
public SqlGeography RingN(
int n
)
[SqlMethodAttribute(IsDeterministic = true, IsPrecise = true)]
public:
SqlGeography^ RingN(
int n
)
[<SqlMethodAttribute(IsDeterministic = true, IsPrecise = true)>]
member RingN :
n:int -> SqlGeography
public function RingN(
n : int
) : SqlGeography
參數
- n
型別：System.Int32
An int expression between 1 and the number of rings in a polygon instance.
傳回值
型別：Microsoft.SqlServer.Types.SqlGeography
A SqlGeography object that represents the ring specified by n.
備註
If the value of the ring index n is less than 1, this method throws an ArgumentOutOfRangeException. The ring index value must be greater than or equal to 1 and should be less than or equal to the number returned by NumRings.