Question

我正在开发网络应用程序，在我的应用程序中我必须打印rdlc而不预览。我的代码如下：

    LocalReport report = new LocalReport();
    report.ReportEmbeddedResource = "TCESS.ESales.CommonLayer.Reports.HandlingBillReport.rdlc";
    report.ReportPath="TCESS.ESales.CommonLayer.Reports.HandlingBillReport.rdlc";

    SettlementOfAccountsDTO objSettlementOfAccountsDTO = ESalesUnityContainer.Container.Resolve<ISettlementOfAccountsService>().GetSettlementOfAccountsByAccId(32);
    if (objSettlementOfAccountsDTO.Account_Id > 0)
    {
        SetReportParametersForBill(objSettlementOfAccountsDTO, AccountReportViewer, report);
    }

    Export(report);
    m_currentPageIndex = 0;
    Print();


private Stream CreateStream(string name, string fileNameExtension, Encoding encoding,
                        string mimeType, bool willSeek)
{
    Stream stream = new FileStream(name + "." + fileNameExtension, FileMode.Create);
    m_streams.Add(stream);
    return stream;
}

private void Export(LocalReport report)
{
    string deviceInfo =
      "<DeviceInfo>" +
      "  <OutputFormat>EMF</OutputFormat>" +
      "  <PageWidth>8.5in</PageWidth>" +
      "  <PageHeight>11in</PageHeight>" +
      "  <MarginTop>0.25in</MarginTop>" +
      "  <MarginLeft>0.25in</MarginLeft>" +
      "  <MarginRight>0.25in</MarginRight>" +
      "  <MarginBottom>0.25in</MarginBottom>" +
      "</DeviceInfo>";
    Warning[] warnings;
    m_streams = new List<Stream>();

    report.Render("Image", deviceInfo, CreateStream, out warnings);

    foreach (Stream stream in m_streams)
        stream.Position = 0;
}

private void PrintPage(object sender, PrintPageEventArgs ev)
{
    Metafile pageImage = new Metafile(m_streams[m_currentPageIndex]);

    ev.Graphics.DrawImage(pageImage, 0, 0);

    m_currentPageIndex++;
    ev.HasMorePages = (m_currentPageIndex < m_streams.Count);
}

private void Print()
{
    const string printerName = "\\\\193.168.0.20\\Printer_Q3";

    if (m_streams == null || m_streams.Count == 0)
        return;

    PrintDocument printDoc = new PrintDocument();
    printDoc.PrinterSettings.PrinterName = printerName;
    if (!printDoc.PrinterSettings.IsValid)
    {
        string msg = String.Format("Can't find printer \"{0}\".", printerName);
        Console.WriteLine(msg);
        return;
    }

    int i=0;
    foreach (Stream stream in m_streams)
    {
        Metafile pageImage = new Metafile(stream);
        pageImage.Save(Server.MapPath("~/Images/"+i.ToString()+".jpg"));
        i++;
    }    
    //printDoc.PrintPage += new PrintPageEventHandler(PrintPage);
    //printDoc.Print();
}

我收到错误“报告的报告定义''尚未指定” 在线

report.Render("Image", deviceInfo, CreateStream, out warnings);

Answer 1

我在实例化要导出的报告时遇到了这个问题，并且必须像这样设置此属性：

wrvReport.LocalReport.ReportEmbeddedResource = "CommonLayer.Reports.SalesByPrice.rdlc";

我看到的差异是.LocalReport是设置嵌入资源的子属性。

Answer 2

From MSDN:

嵌入式报表资源是已经存在的报表定义   存储为调用程序集中的资源。

如果已设置ReportPath属性，则为ReportEmbeddedResource   属性被忽略。

因此，设置EmbeddedResource属性实际上什么都不做，并且ReportPath也失败了，因为它需要物理文件系统路径。

Answer 3

我遇到了同样的问题。我通过设置“复制到输出目录=复制如果更新”来解决它。欢呼声。

Answer 4

我也有同样的问题，这意味着您的代码没有找到rdlc文件，您需要使用report.ReportEmbeddedResource或report.ReportPath。在我看来，您的代码只需要使用report.ReportEmbeddedResource，另一个选项是位于您的电脑或网络文件系统中特定位置的rdlc

尚未指定报告''的报告定义

4 个答案: