通过

ToString 方法

Returns the Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation of a SqlGeography instance augmented with any Z (elevation) and M (measure) values carried by the 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 := False)> _
Public Overrides Function ToString As String
用法
Dim instance As SqlGeography
Dim returnValue As String

returnValue = instance.ToString()

[SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)]
public override string ToString()

[SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)]
public:
virtual String^ ToString() override

[<SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)>]
abstract ToString : unit -> string 
[<SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)>]
override ToString : unit -> string 

public override function ToString() : String

返回值

类型：System. . :: . .String
A string containing the WKT representation of the calling SqlGeography instance.

注释

This method returns the string "Null" when called on null Nothing nullptr unit null 引用（在 Visual Basic 中为 Nothing） instances.