通过

ReportExpression<T>.IsEmpty 属性

Indicates whether the expression object is empty.

命名空间：  Microsoft.ReportingServices.RdlObjectModel
程序集：  Microsoft.ReportingServices.Designer.Controls（在 Microsoft.ReportingServices.Designer.Controls.dll 中）

语法

声明
Public ReadOnly Property IsEmpty As Boolean
    Get
用法
Dim instance As ReportExpression
Dim value As Boolean

value = instance.IsEmpty

public bool IsEmpty { get; }

public:
virtual property bool IsEmpty {
    bool get () sealed;
}

abstract IsEmpty : bool
override IsEmpty : bool

final function get IsEmpty () : boolean

属性值

类型：System.Boolean
A Boolean value.

实现

IExpression.IsEmpty