Beispiel #1
0
        public InfReportOutput Render(InfReportFormat format)
        {
            if (string.IsNullOrWhiteSpace(FileName))
            {
                throw new InvalidOperationException("The report file name property has not been set.");
            }

            if (FileName.StartsWith("/", StringComparison.Ordinal) && HttpContext.Current != null)
            {
                FileName = HttpContext.Current.Server.MapPath(FileName);
            }

            if (!File.Exists(FileName))
            {
                throw new FileNotFoundException("The specified report file name does not exist. Be sure to provide the full path, and set the \"Build Action\" of the report file to \"Content\".", FileName);
            }

            try
            {
                using (var report = new LocalReport())
                {
                    report.ReportPath = FileName;

                    foreach (var dataSourceName in report.GetDataSourceNames())
                    {
                        if (!DataTables.Any(dt => dt.Key.Equals(dataSourceName, StringComparison.OrdinalIgnoreCase)))
                        {
                            var message = string.Format(CultureInfo.InvariantCulture, "No data table has been added for the report data source name \"{0}\".", dataSourceName);
                            throw new InvalidOperationException(message);
                        }
                    }

                    foreach (var parameter in report.GetParameters())
                    {
                        if (!Parameters.Any(p => p.Key.Equals(parameter.Name, StringComparison.OrdinalIgnoreCase)))
                        {
                            var message = string.Format(CultureInfo.InvariantCulture, "No parameter has been added for the report parameter \"{0}\".", parameter.Name);
                            throw new InvalidOperationException(message);
                        }
                    }

                    report.EnableExternalImages = true;
                    report.EnableHyperlinks     = true;
                    report.DataSources.Clear();

                    foreach (var item in DataTables)
                    {
                        report.DataSources.Add(new ReportDataSource(item.Key, item.Value));
                    }

                    foreach (var item in Parameters)
                    {
                        report.SetParameters(new ReportParameter(item.Key, item.Value));
                    }

                    if (!report.IsReadyForRendering)
                    {
                        throw new InvalidOperationException("The report is not ready for rendering. Check that all required data tables and parameters have been added.");
                    }

                    var reportBytes   = new byte[0];
                    var mimeType      = string.Empty;
                    var fileExtension = string.Empty;
                    var encoding      = string.Empty;
                    var streams       = new string[0];
                    var warnings      = new Warning[0];

                    report.Refresh();
                    reportBytes = report.Render(
                        format.ToString(),
                        string.Empty, // device info
                        out mimeType,
                        out encoding,
                        out fileExtension,
                        out streams,
                        out warnings);

                    if (warnings != null && warnings.Length > 0 && warnings.Any(w => w.Severity == Severity.Error))
                    {
                        var message = new StringBuilder();
                        message.Append("The following error(s) occurred during report rendering: ");

                        foreach (var warning in warnings.Where(w => w.Severity == Severity.Error))
                        {
                            message.AppendFormat(
                                CultureInfo.InvariantCulture,
                                "code = \"{0}\"; object name = \"{1}\"; object type = \"{2}\"; message = \"{3}\".",
                                warning.Code,
                                warning.ObjectName,
                                warning.ObjectType,
                                warning.Message);
                        }
                    }

                    return(new InfReportOutput
                    {
                        FileExtension = fileExtension,
                        MimeType = mimeType,
                        Encoding = encoding,
                        ReportBytes = reportBytes
                    });
                }
            }
            catch (Exception ex)
            {
                InfLogger.Log(ex);
                throw;
            }
        }