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：  ReportExecution2005
程序集：  ReportExecution2005（在 ReportExecution2005.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 read-only Boolean value.

注释

The value for the Nullable property has a corresponding NullableSpecified property in the Reporting Service Execution Web service proxy class. Because Nullable is read-only and cannot be set by end users, you do not need to specify this property. For more information about specifying properties, see 省略可选 Web 服务对象的值.

请参阅

参考

ReportParameter 类

ReportExecution2005 命名空间