SqlGeography.STIsClosed 方法
Determines whether the calling SqlGeography instance is closed.
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 := False)> _
Public Function STIsClosed As SqlBoolean
'用途
Dim instance As SqlGeography
Dim returnValue As SqlBoolean
returnValue = instance.STIsClosed()
[SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)]
public SqlBoolean STIsClosed()
[SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)]
public:
SqlBoolean STIsClosed()
[<SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)>]
member STIsClosed : unit -> SqlBoolean
public function STIsClosed() : SqlBoolean
傳回值
型別：System.Data.SqlTypes.SqlBoolean
A SqlBoolean value indicating whether the start and end points of the SqlGeography instance are the same. Returns true if both points are the same. Otherwise, false.
備註
This method returns false if any figures of a geography instance are points, or if the instance is empty.
This method returns true for geography collection types if each contained SqlGeography instance is closed.
All Polygon instances are considered closed.