报告查看器错误消息“客户端发现响应内容类型为 ''，但预期为 'text xml' 请求失败，响应为空." [英] Report viewer Error message "client found response content type of '' but expected 'text xml' The request failed with an empty response."

问题描述

我收到错误

client found response content type of '' but expected 'text xml' The request failed with an empty response.

当我尝试执行以下代码时.

when I try to execute the following code.

//create a PDF from the SQL report
ReportViewer rview = new ReportViewer();

rview.ServerReport.ReportServerUrl = new Uri("http://server/ReportServer$MSSQL2K5?");

List<ReportParameter> paramList = new List<ReportParameter>();
paramList.Add(new Microsoft.Reporting.WinForms.ReportParameter("Batch", "1"));
paramList.Add(new Microsoft.Reporting.WinForms.ReportParameter("InvoiceNo", "0"));
rview.ServerReport.ReportPath = "Report/Report Invoice";

rview.ServerReport.SetParameters(paramList);

string mimeType, encoding, extension, deviceInfo;
string[] streamids;
Microsoft.Reporting.WinForms.Warning[] warnings;
string format = "PDF"; //Desired format goes here (PDF, Excel, or Image)             

deviceInfo =
"<DeviceInfo>" +
"<SimplePageHeaders>True</SimplePageHeaders>" +
"</DeviceInfo>";

byte[] bytes = rview.LocalReport.Render(format, deviceInfo, out mimeType, out encoding, out extension, out streamids, out warnings);

错误发生在线路上:

rview.ServerReport.SetParameters(paramList);

地址是正确的，因为我可以通过网络浏览器正常加载报告:

The address is correct as I can load the report fine via a web browser:

this.webBrowser1.Navigate("http://server/ReportServer$MSSQL2K5?/Report/Report Invoice&Batch=1&InvoiceNo=0");

我需要使用报告查看器加载报告，以便可以导出为 PDF.

I need to load the report with the report viewer so I can export as PDF.

推荐答案

尝试将 Uri 设置为全服务 uri，例如:

Try setting the Uri to the full service uri, eg:

new Uri("http://server/ReportServer$MSSQL2K5/reportservice2005.asmx?")

此外，您是否需要尾随 ??我不确定，但如果 SetParameters 需要，它不会被附加吗?

Additionally, do you need the trailing ?? I'm not sure, but wouldn't it be appended if needed by SetParameters?

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