使用实体框架的Reporting Services

Question

我有使用ado.net数据集开发报告(SSRS)的经验.现在我正在开发一个不使用ADO.net但是实体框架但是实体框架不返回数据表或数据集的应用程序.我想知道

1. 有没有办法在报告服务中使用实体框架返回集合或自定义对象？
2. 实体框架以某种方式返回数据表或数据集.

或者我应该手动从实体框架返回的集合中创建datatable/dataset.

为了记录,我通过从实体框架执行存储过程来获取结果集.

Answer 1

public void getMyReportData() 
{ 
     using (myEntityDataModel v = new myEntityDataModel()) 
     {

         var reportQuery = (from r in v.myTable
                               select new
                               {
                                   l.ID,
                                   l.LeaveApplicationDate,
                                   l.EmployeeNumber,
                                   l.EmployeeName,
                                   l.StartDate,
                                   l.Col1,
                                   l.Col2,
                                   .......,
                                   .......,
                                   l.Address
                               }).ToList();

        reportViewer1.LocalReport.DataSources.Clear();
        ReportDataSource datasource = new ReportDataSource("nameOfReportDataset", reportQuery);
        reportViewer1.LocalReport.DataSources.Add(datasource);

        Stream rpt = loadEmbededReportDefinition("Report1.rdlc");
        reportViewer1.LocalReport.LoadReportDefinition(rpt);
        reportViewer1.RefreshReport();

        //Another way of setting the reportViewer report source

        string exeFolder = Path.GetDirectoryName(Application.ExecutablePath);
        string reportPath = Path.Combine(exeFolder, @"rdlcReports\Report1.rdlc");
        reportViewer1.LocalReport.ReportPath = reportPath;

        reportParameter p = new ReportParameter("DeptID", deptID.ToString());
        reportViewer1.LocalReport.SetParameters(new[] { p });

    }
}




public static Stream loadEmbededReportDefinition(string reportName)
    {
        Assembly _assembly = Assembly.GetExecutingAssembly();
        Stream _reportStream = _assembly.GetManifestResourceStream("ProjectNamespace.rdlcReportsFolder." + reportName);

        return _reportStream;
    }

原始来源：Creating Reports in ASP.Net with Entity Framework