IsNull 属性

Gets a value indicating whether the SqlHierarchyId is nullNothingnullptrunitnull 引用(在 Visual Basic 中为 Nothing).

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

语法

声明
Public ReadOnly Property IsNull As Boolean
    Get
用法
Dim instance As SqlHierarchyId
Dim value As Boolean

value = instance.IsNull
public bool IsNull { get; }
public:
virtual property bool IsNull {
    bool get () sealed;
}
abstract IsNull : bool
override IsNull : bool
final function get IsNull () : boolean

属性值

类型:System. . :: . .Boolean
Boolean representing true (1) if the SqlHierarchyId node is nullNothingnullptrunitnull 引用(在 Visual Basic 中为 Nothing); otherwise, false (0).

实现

INullable. . :: . .IsNull

注释

This member is virtual.