通过

SqlHierarchyId.ToString 方法 ()

  • 项目

 

从 SqlHierarchyId 值返回 SqlHierarchyId 节点的规范字符串表示形式。

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

语法

[SqlMethodAttribute(DataAccess = DataAccessKind.None, SystemDataAccess = SystemDataAccessKind.None, 
    InvokeIfReceiverIsNull = false, OnNullCall = false, IsDeterministic = true, 
    IsPrecise = true, IsMutator = false)]
public override string ToString()

public:
[SqlMethodAttribute(DataAccess = DataAccessKind::None, SystemDataAccess = SystemDataAccessKind::None, 
    InvokeIfReceiverIsNull = false, OnNullCall = false, IsDeterministic = true, 
    IsPrecise = true, IsMutator = false)]
virtual String^ ToString() override

[<SqlMethodAttribute(DataAccess = DataAccessKind.None, SystemDataAccess = SystemDataAccessKind.None,
    InvokeIfReceiverIsNull = false, OnNullCall = false, IsDeterministic = true,
    IsPrecise = true, IsMutator = false)>]
override ToString : unit -> string

<SqlMethodAttribute(DataAccess := DataAccessKind.None, SystemDataAccess := SystemDataAccessKind.None,
    InvokeIfReceiverIsNull := False, OnNullCall := False, IsDeterministic := True,
    IsPrecise := True, IsMutator := False)>
Public Overrides Function ToString As String

返回值

Type: System.String

字符串

备注

从的转换时将隐式调用 SqlHierarchyId ，将发生数据类型为字符串类型。

作用与 Parse 相反。

示例

DECLARE @StringValue AS nvarchar(4000), @hierarchyidValue AS hierarchyid
SET @StringValue = '/1/1/3/'
SET @hierarchyidValue = 0x5ADE

SELECT hierarchyid::Parse(@StringValue) AS hierarchyidRepresentation,
 @hierarchyidValue.ToString() AS StringRepresentation ;
GO

请参阅

SqlHierarchyId 结构
Microsoft.SqlServer.Types 命名空间

返回页首