• 项目

Nullable 属性

Indicates whether the value of the parameter can be nullNothingnullptrunitnull 引用（在 Visual Basic 中为 Nothing）.

命名空间：  ReportService2005
程序集：  ReportService2005（在 ReportService2005.dll 中）

语法

声明
Public Property Nullable As Boolean
    Get
    Set
用法
Dim instance As ReportParameter
Dim value As Boolean

value = instance.Nullable

instance.Nullable = value

public bool Nullable { get; set; }

public:
property bool Nullable {
    bool get ();
    void set (bool value);
}

member Nullable : bool with get, set

function get Nullable () : boolean
function set Nullable (value : boolean)

属性值

类型：System. . :: . .Boolean
A Boolean value. A value of true indicates that the value of the parameter can be nullNothingnullptrunitnull 引用（在 Visual Basic 中为 Nothing）.