在ASP.NET类（而不是.aspx）中呈现rdlc报告时出错

大家好，我想用class中的rdlc报告生成pdf。如何分配报告名称（.rdlc）和渲染时，错误

Hello every one, I want to generate pdf using rdlc report from class. How to assign report name (.rdlc) and while rendering, error

报告定义的来源尚未指定

the source of the report definition has not been specified

https://snag.gy/0WnIyA.jpg



请帮助我。

提前致谢



我的尝试：

https://snag.gy/0WnIyA.jpg

Please help me.
Thanks in advance

What I have tried:

Dim ReportViewer1 As Microsoft.Reporting.WebForms.ReportViewer = New Microsoft.Reporting.WebForms.ReportViewer()
     ReportViewer1.LocalReport.DataSources.Clear()
     ReportViewer1.ProcessingMode = Microsoft.Reporting.WebForms.ProcessingMode.Remote

     ReportViewer1.ServerReport.ReportServerUrl = New Uri("http://localhost:56370/NVSehore29jun18/")
     ReportViewer1.ServerReport.ReportPath = System.Web.Hosting.HostingEnvironment.MapPath("~/PartyFiles/General/ZSLedger001.rdlc")
     Dim rds As New Microsoft.Reporting.WebForms.ReportDataSource("DataSet1", dt)
     ReportViewer1.LocalReport.DataSources.Add(rds)
     ReportViewer1.LocalReport.Refresh()

     bytes = ReportViewer1.LocalReport.Render("PDF", Nothing, mimeType, encoding, extension, streamids, warnings)

     Dim fs As FileStream = New FileStream(FilePath, FileMode.Open)
     fs.Write(bytes, 0, bytes.Length)
     fs.Close()