通过

GetDescendant 方法

Gets the value of a descendant SqlHierarchyId node that is greater than child1 and less than child2.

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

语法

声明
<SqlMethodAttribute(DataAccess := DataAccessKind.None, SystemDataAccess := SystemDataAccessKind.None,  _
    InvokeIfReceiverIsNull := False, OnNullCall := True,  _
    IsDeterministic := True, IsPrecise := True, IsMutator := False)> _
Public Function GetDescendant ( _
    child1 As SqlHierarchyId, _
    child2 As SqlHierarchyId _
) As SqlHierarchyId
用法
Dim instance As SqlHierarchyId
Dim child1 As SqlHierarchyId
Dim child2 As SqlHierarchyId
Dim returnValue As SqlHierarchyId

returnValue = instance.GetDescendant(child1, _
    child2)

[SqlMethodAttribute(DataAccess = DataAccessKind.None, SystemDataAccess = SystemDataAccessKind.None, 
    InvokeIfReceiverIsNull = false, OnNullCall = true, 
    IsDeterministic = true, IsPrecise = true, IsMutator = false)]
public SqlHierarchyId GetDescendant(
    SqlHierarchyId child1,
    SqlHierarchyId child2
)

[SqlMethodAttribute(DataAccess = DataAccessKind::None, SystemDataAccess = SystemDataAccessKind::None, 
    InvokeIfReceiverIsNull = false, OnNullCall = true, 
    IsDeterministic = true, IsPrecise = true, IsMutator = false)]
public:
SqlHierarchyId GetDescendant(
    SqlHierarchyId child1, 
    SqlHierarchyId child2
)

[<SqlMethodAttribute(DataAccess = DataAccessKind.None, SystemDataAccess = SystemDataAccessKind.None, 
    InvokeIfReceiverIsNull = false, OnNullCall = true, 
    IsDeterministic = true, IsPrecise = true, IsMutator = false)>]
member GetDescendant : 
        child1:SqlHierarchyId * 
        child2:SqlHierarchyId -> SqlHierarchyId 

public function GetDescendant(
    child1 : SqlHierarchyId, 
    child2 : SqlHierarchyId
) : SqlHierarchyId

参数

返回值

类型：Microsoft.SqlServer.Types. . :: . .SqlHierarchyId
A SqlHierarchyId with a value greater than the lower bound and less than the upper bound.

注释

  • If parent is null Nothing nullptr unit null 引用（在 Visual Basic 中为 Nothing） , returns null Nothing nullptr unit null 引用（在 Visual Basic 中为 Nothing） .

  • If parent is not null Nothing nullptr unit null 引用（在 Visual Basic 中为 Nothing） , and both child1 and child2 are null Nothing nullptr unit null 引用（在 Visual Basic 中为 Nothing） , returns a descendant of parent.

  • If parent and child1 are not null Nothing nullptr unit null 引用（在 Visual Basic 中为 Nothing） , and child2 is null Nothing nullptr unit null 引用（在 Visual Basic 中为 Nothing） , returns a descendant of parent greater than child1.

  • If parent and child2 are not null Nothing nullptr unit null 引用（在 Visual Basic 中为 Nothing） and child1 is null Nothing nullptr unit null 引用（在 Visual Basic 中为 Nothing） , returns a descendant of parent less than child2.

  • If parent, child1, and child2 are not null Nothing nullptr unit null 引用（在 Visual Basic 中为 Nothing） , returns a descendant of parent greater than child1 and less than child2.

  • An exception is raised if child1 or child2 are not null Nothing nullptr unit null 引用（在 Visual Basic 中为 Nothing） and are not a descendant of parent.

  • If child1 >= child2, an exception is raised.