此 API 支持 SQL Server 2012 基础结构，但不能通过代码直接使用。
A string value that represents the calculated value of the Label property.
命名空间： Microsoft.ReportingServices.OnDemandReportRendering
程序集： Microsoft.ReportingServices.ProcessingCore（在 Microsoft.ReportingServices.ProcessingCore.dll 中）
语法
声明
Protected m_label As String
用法
Dim value As String
value = Me.m_label
Me.m_label = value
protected string m_label
protected:
String^ m_label
val mutable m_label: string
protected var m_label : String