我在RDLC报告中收到“报告'xxxx.rdlc'的报告定义”

Question

I've created an rdlc report. I have a reportViewer on my form. When I try to load the report I get : "The report definition for report 'xxxx.rdlc' has not been specified". I can't figure this out. I have a datatable with the data I need for the report. I take this dataTable and I load it back to my database, to a table called "FinalReport". (The reason i'm doing this, is because that rdlc requires some sort of a dataSource.) I have a table inside my report (table1). This is my code (inside my form, where the report viewer is located):

this.finalDataReportTableAdapter.Fill(this.nehasitDataSet.FinalDataReport);
localReport.ReportEmbeddedResource = @"Resources\VisibleAssets.rdlc";
//I'm not so sure about the following line, but it's the only line that prevented me from getting an error ("no reportdefinition defined"
using (StreamReader rdlcSR = new StreamReader(@"Resources\VisibleAssets.rdlc"))
{
    localReport.LoadReportDefinition(rdlcSR);

    localReport.Refresh();
}

this.reportViewer.RefreshReport();

I also connected the report to the dataTable and the reportViewer to the report. I really can't see the problem, and I searched Google for it.

Any help will be highly appreciated.

Answer 1

There are some reasons causing this problem and sometimes the problem might occur only when publishing the same application to IIS . If the report file (*.rdlc) is existed in the related location and the problem still continues, you can try the following methods in order to fix it:

from LocalReport.ReportEmbeddedResource Property on MSDN
“… An embedded report resource is a report definition that has been stored as a resource in the calling assembly. If the ReportPath property has been set, the ReportEmbeddedResource property is ignored. It also causes the report loaded with LoadReportDefinition to be ignored.”

Change:

reportViewer.LocalReport.ReportPath = Server.MapPath("~/Reporting/YourReportName.rdlc");

to:

rw.LocalReport.ReportEmbeddedResource = "YourFullNamespace.Reporting.YourReportName.rdlc";

And then change Build Action property to Embedded Resource from the properties of YourReportName.rdlc file. Hope this helps...

Answer 2

I was getting the same error but I'm loading my report in a different way. I followed the instruction on MSDN . Except where they reference ReportEmbeddedResource I, instead, used ReportPath . When I make that change my report loads.

public partial class ReportViewer : Page
{
    private bool _isReportViewerLoaded;

    public ReportViewer()
    {
        InitializeComponent();
        _reportViewer.Load += _reportViewer_Load;
    }

    void _reportViewer_Load(object sender, EventArgs e)
    {
        if (!_isReportViewerLoaded)
        {
            Microsoft.Reporting.WinForms.ReportDataSource reportDataSource1 = new Microsoft.Reporting.WinForms.ReportDataSource();
            BossbergDataset dataset = DataAccessConstants.myDataset;

            dataset.BeginInit();

            reportDataSource1.Name = "DataSet1"; //Name of the report dataset in our .RDLC file
            reportDataSource1.Value = dataset.Table1;
            this._reportViewer.LocalReport.DataSources.Add(reportDataSource1);
         //My testReport.Rdlc has the [Copy to Output Directory] set to [Copy Always]
            this._reportViewer.LocalReport.ReportPath = @"Reports/TestReport.rdlc";

            dataset.EndInit();

            DataAccessConstants.Table1Adapter.Fill(dataset.Table1);

            _reportViewer.RefreshReport();

            _isReportViewerLoaded = true;
        }
    }
}

With my XAML being

<Page x:Class="MyProject.Views.ReportViewer"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
       xm![enter image description here][2]lns:rv="clr-namespace:Microsoft.Reporting.WinForms;assembly=Microsoft.ReportViewer.WinForms" 
      mc:Ignorable="d" 
      d:DesignHeight="300" d:DesignWidth="300"
    Title="ReportViewer">

    <Grid>
        <WindowsFormsHost>
            <rv:ReportViewer x:Name="_reportViewer"/>
        </WindowsFormsHost>
    </Grid>
</Page>

Also:

• Make sure you are copying your report files to your output directory. If you are using syntax like ../../Myreport.rdlc you are probably not copying to the output directory.

• Make sure you are referencing the right version of the ReportViewer dll. When I went to References > Add Reference... > Assemblies > Extensions and found the report viewer dll it was an old version. I needed to explicitly navigate to

  C:\\Program Files (x86)\\Microsoft Visual Studio 12.0\\ReportViewer\\Microsoft.ReportViewer.WinForms.dll

  To find the latest. If you get it wrong you'll get an error like

  The report definition is not valid. Details: The report definition has an invalid target namespace ' http://schemas.microsoft.com/sqlserver/reporting/2008/01/reportdefinition ' which cannot be upgraded.

Answer 3

Where do you associate localReport with your reportViewer? Instead of:

  using (StreamReader rdlcSR = new StreamReader(@"Resources\VisibleAssets.rdlc"))
  {
      localReport.LoadReportDefinition(rdlcSR);

      localReport.Refresh();
  }

I used:

  using (StreamReader rdlcSR = new StreamReader(@"Resources\VisibleAssets.rdlc"))
  {
      reportViewer1.LocalReport.LoadReportDefinition(rdlcSR);

      reportViewer1.LocalReport.Refresh();
  }

And it seems to be working for me.

Answer 4

Exactly like what you said because that rdlc requires some sort of a dataSource :) It is a tricky issue in Report viewer and to solve it I wrote a method that will bind the report direct from Datatable:

private void GenerateReportDirect(ReportViewer reportViewer, string datasource, DataTable dt, string reportpath)
{
    reportViewer.LocalReport.ReportPath = reportpath;
    ReportDataSource repds = new ReportDataSource(datasource, dt);
    reportViewer.LocalReport.DataSources.Clear();
    reportViewer.LocalReport.DataSources.Add(repds);
    reportViewer.LocalReport.Refresh();
}

and to implement this method you have to specify putting the string of dataset table adapter just a name but our report will take the data to bind from the data table (we will cheat on our report viewer :) )

private void BindReport(DataTable dt)
    {
            string reportPath = Server.MapPath("StudentBus.rdlc");
            GenerateReportDirect(ReportViewer1, "StudentDataSet_usp_RPT_StudentBus", dt, reportPath);
    }

I hope this will help :) .

Answer 5

I had this same issue occur with one of my reports. It was a local, embedded report.

1. I didn't have the ReportEmbeddedResource property set.
2. When I did set ReportEmbeddedResource property , it still gave the error because the report name had incorrect case - myApp.reports.rptMyJobstatus.rdlc instead of myApp.reports.rptMyJobStatus.rdlc .

Therefore, you need to check both of these conditions.

Answer 6

如果要在代码中设置ReportEmbeddedResource属性而不是报告路径，则从XYZ.rdlc文件的属性将Build Action属性更改为Embedded Resource将帮助您解决大部分问题。