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.

請參閱

參考

SqlGeography 類別

Microsoft.SqlServer.Types 命名空間