共用方式為

SqlHierarchyId.GetAncestor 方法

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Retrieves the SqlHierarchyId node n levels up the hierarchical tree.

命名空間：  Microsoft.SqlServer.Types
組件：  Microsoft.SqlServer.Types (在 Microsoft.SqlServer.Types.dll 中)

語法

'宣告
<SqlMethodAttribute(DataAccess := DataAccessKind.None, SystemDataAccess := SystemDataAccessKind.None,  _
    InvokeIfReceiverIsNull := False, OnNullCall := False,  _
    IsDeterministic := True, IsPrecise := True, IsMutator := False)> _
Public Function GetAncestor ( _
    n As Integer _
) As SqlHierarchyId
'用途
Dim instance As SqlHierarchyId 
Dim n As Integer 
Dim returnValue As SqlHierarchyId 

returnValue = instance.GetAncestor(n)

[SqlMethodAttribute(DataAccess = DataAccessKind.None, SystemDataAccess = SystemDataAccessKind.None, 
    InvokeIfReceiverIsNull = false, OnNullCall = false, 
    IsDeterministic = true, IsPrecise = true, IsMutator = false)]
public SqlHierarchyId GetAncestor(
    int n
)

[SqlMethodAttribute(DataAccess = DataAccessKind::None, SystemDataAccess = SystemDataAccessKind::None, 
    InvokeIfReceiverIsNull = false, OnNullCall = false, 
    IsDeterministic = true, IsPrecise = true, IsMutator = false)]
public:
SqlHierarchyId GetAncestor(
    int n
)

[<SqlMethodAttribute(DataAccess = DataAccessKind.None, SystemDataAccess = SystemDataAccessKind.None, 
    InvokeIfReceiverIsNull = false, OnNullCall = false, 
    IsDeterministic = true, IsPrecise = true, IsMutator = false)>]
member GetAncestor : 
        n:int -> SqlHierarchyId

public function GetAncestor(
    n : int
) : SqlHierarchyId

參數

  • n
    型別：System.Int32
    An integer representing the number of levels to ascend in the hierarchy.

傳回值

型別：Microsoft.SqlServer.Types.SqlHierarchyId
SqlHierarchyId representing the nth ancestor of this.If a number greater than GetLevel is passed, nullnull 參考 (在 Visual Basic 中為 Nothing) is returned.If a negative number is passed, an exception is raised indicating that the argument is out of range.

請參閱

參考

SqlHierarchyId 結構

Microsoft.SqlServer.Types 命名空間