通过

STNumInteriorRing 方法

Returns the number of interior rings of a Polygon SqlGeometry instance.

命名空间：  Microsoft.SqlServer.Types
程序集：  Microsoft.SqlServer.Types（在 Microsoft.SqlServer.Types.dll 中）

语法

声明
<SqlMethodAttribute(IsDeterministic := True, IsPrecise := True)> _
Public Function STNumInteriorRing As SqlInt32
用法
Dim instance As SqlGeometry
Dim returnValue As SqlInt32

returnValue = instance.STNumInteriorRing()

[SqlMethodAttribute(IsDeterministic = true, IsPrecise = true)]
public SqlInt32 STNumInteriorRing()

[SqlMethodAttribute(IsDeterministic = true, IsPrecise = true)]
public:
SqlInt32 STNumInteriorRing()

[<SqlMethodAttribute(IsDeterministic = true, IsPrecise = true)>]
member STNumInteriorRing : unit -> SqlInt32 

public function STNumInteriorRing() : SqlInt32

返回值

类型：System.Data.SqlTypes. . :: . .SqlInt32
A SqlInt32 value that specifies the number of interior rings.

注释

This method returns null Nothing nullptr unit null 引用（在 Visual Basic 中为 Nothing） if the SqlGeometry instance is not a polygon.