Images Not Rendering When Exporting To HTML Using Reporting Services

Hi everyone,

Our system is set up using SQL Server 2000 and Reporting Services for SQL Server 2000. Our web application is built with Visual Studio 2003, C# and .Net Framework 1.1 and is a 3-tier application. On both our localhost and development builds of the application, the images that get rendered do show up properly. On our live build, the images do not.

One difference that we found is that on the live build, users do not have file permission access to our middle tier that is running reporting services. After examining the URL of where the image is trying to point to, we see that it is trying to access the middle tier from the front presentation tier.

My question is, is there a way to send a certain parameter into the Render method to have the images stored somewhere else? Any help would be greatly appreaciated. Here is the code we currently have:

ReportingService rs = new ReportingService();
rs.Credentials = System.Net.CredentialCache.DefaultCredentials;

try
{
//Response.Write("Format: " + format);
if (format == "HTML4.0")
{
// Render arguments
byte[] result = null;
string historyID = null;

string devInfo = "<DeviceInfo><HTMLFragment>True</HTMLFragment></DeviceInfo>";
DataSourceCredentials[] credentials = null;
string showHideToggle = "true";
string encoding;
string mimeType;
Warning[] warnings = null;
ParameterValue[] reportHistoryParameters = null;
string[] streamIDs = null;
ParameterValue[] reportParameters = null;
SessionHeader sh = new SessionHeader();

reportParameters = new ParameterValue[5];

reportParameters[0] = new ParameterValue();
reportParameters[0].Name = "par_userID";
reportParameters[0].Value = userID;

reportParameters[1] = new ParameterValue();
reportParameters[1].Name = "par_menuID";
reportParameters[1].Value = menuID;

reportParameters[2] = new ParameterValue();
reportParameters[2].Name = "par_URL";
reportParameters[2].Value = reportURL;

reportParameters[3] = new ParameterValue();
reportParameters[3].Name = "par_startPage";
reportParameters[3].Value = startPage;

reportParameters[4] = new ParameterValue();
reportParameters[4].Name = "par_endPage";
reportParameters[4].Value = endPage;

//Clean up old files
RemoveFiles(ConfigurationSettings.AppSettings["tempFileLocation"]);

result = rs.Render(reportPath,
format,
historyID,
devInfo,
reportParameters,
credentials,
showHideToggle,
out encoding,
out mimeType,
out reportHistoryParameters,
out warnings,
out streamIDs);

// // For each image stream returned by the call to render,
// // render the stream and save it to the application root
// byte[] image;
// string optionalString = null;
// string tempFilePath = ConfigurationSettings.AppSettings["tempFileLocation"].ToString();
//
// foreach (string streamID in streamIDs)
// {
// image = rs.RenderStream(reportPath,
// "HTML4.0",
// streamID,
// null,
// null,
// reportHistoryParameters,
// out optionalString,
// out optionalString);
//
// FileStream stream = File.OpenWrite(tempFilePath + streamID + ".png");
// stream.Write(image, 0, image.Length);
// stream.Close();
// }

// Write the results to the current Web page
string htmlout = Encoding.ASCII.GetString(result);
htmlout = htmlout.Replace("<hr/>", "");

rs.Dispose();
return htmlout;
}