Crystal Report在vs vs Express逐步创建

Question

错误2找不到类型或命名空间名称'reportdocument'(您是否缺少使用指令或汇编引用？(CS 22 9客户在C＃

中的报告加载期间发生此错误

ReportDocument reportdocument = new ReportDocument();                 
reportdocument.Load(Application.StartupPath + 
@"D:\SoftwareiLogicc#ReportMyFirstCrystalReport.rpt");
reportdocument.SetDataSource((DataTable)dt);
reportViewer1.ReportSource = reportdocument;
reportViewer1.Refresh()

Answer 1

您使用

using CrystalDecisions.CrystalReports.Engine;

删除给定错误的名称空间

Answer 2

using CrystalDecisions.CrystalReports;
using CrystalDecisions.CrystalReports.Engine;

将它们放在您的班级中以制作ReportDocument的实例。