public HttpResponseMessage PostReport(JObject JsonRequest)
        {
            int    status = 0;
            string error  = "";

            try
            {
                String className  = "FastReport." + JsonRequest["ClassName"].ToString();
                string rootPath   = System.Environment.CurrentDirectory;
                string outputPath = Path.Combine(rootPath, "output.pdf");
                //FastReport.Report report = new FastReport.Report();
                //string filename = @"C:\Users\lipan\Desktop\report3.frx";
                //report.Load(filename);
                FastReport.Report report = (FastReport.Report)Activator.CreateInstance(System.Type.GetType(className));
                DataSet           data   = new DataSet();
                DataTable         table  = new DataTable();
                int num = 0;
                foreach (var item in JsonRequest)
                {
                    if (item.Key.StartsWith("ClassName"))
                    {
                        continue;
                    }
                    if (item.Key.StartsWith("Signature"))
                    {
                        DataTable dt = new DataTable();
                        dt.TableName = item.Key;
                        dt.Columns.Add(item.Key, typeof(byte[]));
                        WebClient wc = new WebClient();
                        byte[]    bytes;
                        if (item.Value.ToString() == "")
                        {
                            //此处留空时处理;
                            bytes = wc.DownloadData(Path.Combine(rootPath, "EmptySignature.PNG"));
                        }
                        else
                        {
                            bytes = wc.DownloadData(item.Value.ToString());
                        }
                        MemoryStream msIMG = new MemoryStream(bytes);
                        Image        img   = System.Drawing.Image.FromStream(msIMG);
                        //Image img = Image.FromFile(folderPath + item.Key + ".PNG");
                        DataRow      row = dt.NewRow();
                        MemoryStream ms  = new MemoryStream();
                        img.Save(ms, System.Drawing.Imaging.ImageFormat.Gif);
                        row[item.Key] = ms.ToArray();
                        dt.Rows.Add(row);
                        data.Tables.Add(dt);
                        continue;
                    }
                    table           = CSVHelper.ConvertJsonToDatatable(JsonRequest.ToString(), num);
                    table.TableName = item.Key;
                    data.Tables.Add(table);
                    num++;
                }
                report.RegisterData(data);
                int tableNum = data.Tables.Count;
                for (int i = 0; i < tableNum; i++)
                {
                    report.GetDataSource(data.Tables[i].TableName).Enabled = true;
                }
                report.Prepare();
                FastReport.Export.Pdf.PDFExport export = new FastReport.Export.Pdf.PDFExport();
                report.Export(export, outputPath);
                System.Diagnostics.Process.Start(outputPath);
            }
            catch (Exception e)
            {
                status = -1;
                error  = e.ToString();
            }

            String returnValue = JsonConvert.SerializeObject(new
            {
                status = status.ToString(), error = error
            });

            return(ResultToJson.toJson(returnValue));
        }