在没有报表查看器的情况下在网页中呈现SSRS 2008报表

Question

I have a web app written in C# that I need to be able to render an SSRS report on an aspx page without using the Report Viewer control.

As HTML inside a div tag would be perfect. I have the app attached to my SSRS instance via ReportingService2010 reference.

I've found some examples online but are for ReportingServices2005 and couldn't port them over.

How can I do this?

Answer 1

I pulled this out of a project I put together about a year ago.

A few key points:

• you need to pass credentials to the report server.
• you need to create an images path so that any images in your report are rendered and displayed in the html Report/GraphFiles/ "this should be relative to your app url"
• and if your report has any parameters you will need to add them.
• you will definitely need to tweek the code to get it going.

it uses the ReportExecutionService reference, you will have to play around with it but the nuts and bolts should all be here.

i'd really love to spend time cleaning it up a bit but i dont have the time sorry, i hope it helps

class RenderReport
    {

        public struct ReportServerCreds
            {
                public string UserName { get; set; }
                public string Password { get; set; }
                public string Domain { get; set; }

            }

            public ReportServerCreds GetReportCreds()
            {

                ReportServerCreds rsc = new ReportServerCreds();
                rsc.UserName = ConfigurationManager.AppSettings["reportserveruser"].ToString();
                rsc.Password = ConfigurationManager.AppSettings["reportserverpassword"].ToString();
                rsc.Domain = ConfigurationManager.AppSettings["reportserverdomain"].ToString();

                return rsc;
            }

           public enum SSRSExportType
            { 
                HTML,PDF
            }

            public string RenderReport(string reportpath,SSRSExportType ExportType)
            {
                using (ReportExecutionService.ReportExecutionServiceSoapClient res = new   ReportExecutionService.ReportExecutionServiceSoapClient("ReportExecutionServiceSoap"))
                {

                    ReportExecutionService.ExecutionHeader ExecutionHeader = new ReportExecutionService.ExecutionHeader();
                    ReportExecutionService.TrustedUserHeader TrusteduserHeader = new ReportExecutionService.TrustedUserHeader();

                    res.ClientCredentials.Windows.AllowedImpersonationLevel = System.Security.Principal.TokenImpersonationLevel.Impersonation;

                    ReportServerCreds rsc = GetReportCreds();
                    res.ClientCredentials.Windows.ClientCredential.Domain = rsc.Domain;
                    res.ClientCredentials.Windows.ClientCredential.UserName = rsc.UserName;
                    res.ClientCredentials.Windows.ClientCredential.Password = rsc.Password;


                    res.Open();
                    ReportExecutionService.ExecutionInfo ei = new ReportExecutionService.ExecutionInfo();

                    string format =null;
                    string deviceinfo =null;
                    string mimetype = null;

                    if (ExportType.ToString().ToLower() == "html")
                    {
                        format = "HTML4.0";
                        deviceinfo = @"<DeviceInfo><StreamRoot>/</StreamRoot><HTMLFragment>True</HTMLFragment></DeviceInfo>";
                    }
                    else if (ExportType.ToString().ToLower() == "pdf")
                    {
                        format = "PDF";
                        mimetype = "";
                    }


                    byte[] results = null;
                    string extension = null;
                    string Encoding = null;
                    ReportExecutionService.Warning[] warnings;
                    string[] streamids = null;
                    string historyid = null;
                    ReportExecutionService.ExecutionHeader Eheader;
                    ReportExecutionService.ServerInfoHeader serverinfoheader;
                    ReportExecutionService.ExecutionInfo executioninfo;



                    // Get available parameters from specified report.
                    ParameterValue[] paramvalues = null;
                    DataSourceCredentials[] dscreds = null;
                    ReportParameter[] rparams = null;

                    using (ReportService.ReportingService2005SoapClient lrs = new ReportService.ReportingService2005SoapClient("ReportingService2005Soap"))
                    {


                        lrs.ClientCredentials.Windows.AllowedImpersonationLevel = System.Security.Principal.TokenImpersonationLevel.Impersonation;
                        lrs.ClientCredentials.Windows.ClientCredential.Domain = rsc.Domain;
                        lrs.ClientCredentials.Windows.ClientCredential.UserName = rsc.UserName;
                        lrs.ClientCredentials.Windows.ClientCredential.Password = rsc.Password;


                        lrs.GetReportParameters(reportpath,historyid,false,paramvalues,dscreds,out rparams);

                    }



                    // Set report parameters here
                    //List<ReportExecutionService.ParameterValue> parametervalues = new List<ReportExecutionService.ParameterValue>();

                    //string enumber = Session["ENumber"] as string;
                    //parametervalues.Add(new ReportExecutionService.ParameterValue() { Name = "ENumber", Value = enumber });

                    //if (date != null)
                    //{
                    //    DateTime dt = DateTime.Today;
                        //parametervalues.Add(new ReportExecutionService.ParameterValue() { Name = "AttendanceDate", Value = dt.ToString("MM/dd/yyyy")});
                    //}

                    //if (ContainsParameter(rparams, "DEEWRID"))
                    //{
                        //parametervalues.Add(new ReportExecutionService.ParameterValue() { Name = "DEEWRID", Value = deewrid });
                    //}

                    //if (ContainsParameter(rparams, "BaseHostURL"))
                    //{
//                        parametervalues.Add(new ReportExecutionService.ParameterValue() { Name = "BaseHostURL", Value = string.Concat("http://", Request.Url.Authority) });
                    //}


                    //parametervalues.Add(new ReportExecutionService.ParameterValue() {Name="AttendanceDate",Value=null });
                    //parametervalues.Add(new ReportExecutionService.ParameterValue() { Name = "ENumber", Value = "E1013" });



                    try
                    {

                        Eheader = res.LoadReport(TrusteduserHeader, reportpath, historyid, out serverinfoheader, out executioninfo);
                        serverinfoheader = res.SetExecutionParameters(Eheader, TrusteduserHeader, parametervalues.ToArray(), null, out executioninfo);
                        res.Render(Eheader, TrusteduserHeader, format, deviceinfo, out results, out extension, out mimetype, out Encoding, out warnings, out streamids);

                        string exportfilename = string.Concat(enumber, reportpath);

                        if (ExportType.ToString().ToLower() == "html")
                        {
                            //write html
                            string html = string.Empty;
                            html = System.Text.Encoding.Default.GetString(results);

                            html = GetReportImages(res, Eheader, TrusteduserHeader, format, streamids, html);

                            return html;
                        }
                        else if (ExportType.ToString().ToLower() == "pdf")
                        {
                            //write to pdf


                            Response.Buffer = true;
                            Response.Clear();
                            Response.ContentType = mimetype;



                            //Response.AddHeader("content-disposition", string.Format("attachment; filename={0}.pdf", exportfilename));
                            Response.BinaryWrite(results);
                            Response.Flush();
                            Response.End();

                        }


                    }
                    catch (Exception e)
                    {
                        Response.Write(e.Message);
                    }
                }

            }


            string GetReportImages(ReportExecutionService.ReportExecutionServiceSoapClient res, 
                                   ReportExecutionService.ExecutionHeader EHeader,
                                    ReportExecutionService.TrustedUserHeader tuh,
                                   string reportFormat, string[] streamIDs, string html)
            {
                if (reportFormat.Equals("HTML4.0") && streamIDs.Length > 0)
                {
                    string devInfo;
                    string mimeType;
                    string Encoding;
                    int startIndex;
                    int endIndex;
                    string fileExtension = ".jpg";

                    string SessionId;

                    Byte[] image;

                    foreach (string streamId in streamIDs)
                    {
                        SessionId = Guid.NewGuid().ToString().Replace("}", "").Replace("{", "").Replace("-", "");
                        //startIndex = html.IndexOf(streamId);
                        //endIndex = startIndex + streamId.Length;

                        string reportreplacementname = string.Concat(streamId, "_", SessionId, fileExtension);
                        html = html.Replace(streamId, string.Concat(@"Report\GraphFiles\", reportreplacementname));


                        //html = html.Insert(endIndex, fileExtension);
                        //html = html.Insert(startIndex, @"Report/GraphFiles/" + SessionId + "_");

                        devInfo = "";
                        //Image = res.RenderStream(reportFormat, streamId, devInfo, out encoding, out mimeType);
                        res.RenderStream(EHeader,tuh, reportFormat, streamId, devInfo, out image , out Encoding, out mimeType);



                        System.IO.FileStream stream = System.IO.File.OpenWrite(HttpContext.Current.Request.PhysicalApplicationPath + "Report\\GraphFiles\\" + reportreplacementname);
                        stream.Write(image, 0, image.Length);
                        stream.Close();
                        mimeType = "text/html";
                    }
                }

                return html;
            }

            bool ContainsParameter(ReportParameter[] parameters, string paramname)
            {
                    if(parameters.Where(i=>i.Name.Contains(paramname)).Count() != 0)
                    {
                        return true;
                    }
                    return false;
                }
    }

To Execute:

first parameter is the location of the report on the server. the second is a SSRSExportType enum

RenderReport("ReportPathOnServer",SSRSExportType.HTML);

Answer 2

If you are just trying to show the HTML render of a report and you want it to look like a native object to the application without any parameters or toolbar, then you could call the URL for the report directly and include "&rc:Toolbar=false" in the URL. This will hide the toolbar for the Report Viewer control. This method is described under the URL Access Parameter Reference msdn article . Not exactly what you asked for, but it may achieve the purpose.

Here's a sample call that omits the HTML and Body sections if you are embedding the results in an existing HTML document:

http://ServerName/ReportServer?%2fSome+Folder%2fSome+Report+Name&rs:Command=Render&rc:Toolbar=false&rc:HTMLFragment=true

Answer 3

Definitely an old question but if you're using ASP.NET MVC you could try this open source solution . It uses an HTML helper and renders an .aspx page in an iframe. The repo has a server-side, local render, and anonymous example.