How to generate huge report with images using SwapFileVirtualization - jasperserver

Trying to generate huge report designed in iReport 4.7.1, which include images in table first column , using SOAP to communicate to TIBCO jasperserver.
Not able to implement Virtualization(swapFileVirtualization), any help would be appreciable.

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Failed to load databse information: SAP Crystal Reports ActiveX Designer when create Dataset

I am having this issue again and again after applying multiple solutions like update web.config with code:
. But not working.
As i want to add database fields to report using ADO.Net datasets it give this error message. Screen shot is attached...enter image description here

Display a report based on an form application

I'm new in report builder, i would be very grateful if i get answers to my question.
After creating a form application , using oracle forms, now i would like to get a report using REport Builder that displays all the data generated by the application.
Is there any way to get these data, without having to write from the begining all the procedures and functions in report buider.
Thank you in advance.
Save the data generated by your Forms application into an Oracle table, then use this table as your source in Oracle Reports.

what are different preview report using excel preview and excel preview(using J ExcelApi) in iReports 2.0.2?

i'm still new in Jasper reports.i still confuse what the different preview report using excel preview and excel preview(using J ExcelApi) in iReports 2.0.2.Which is more common that people use?. is there any effect when we generate the report?. Can anybody tell me?
Jasperreports supports multiple export formats (xls, pdf, csv, etc...). After developing a report using iReport, you can generate a report in any of those export formats. The best way to view those reports is using an external appliction that you can map. For example, xls report is tied with Excel and pdf reports are tied with Adobe Reader. The new version of iReport supports generation of these reports using the application itself (preview). However, what happens in the background is the same whether you view it with external viewer or internaly using iReport "preview". Personaly, I prefer to use external viewer. The exported reports are cached in the compilation directory.

Report generation in web applications

As part of my web application, i am using iReport tool to generate reports and its working fine but my doubt is, is it possible to generate xls type report in browser like pdf (we can show the pdf file in the browser)? Means I need to show reports in xls file or word document in the client machine, is it possible? Can anybody clear my doubt?
Although it is a bit late, I'll try to give a generic answer
you can fetch your data to your local Jasper Reports server via JSON.
There is a sample of JsonDataSource in the 4.5.0 version of jasperreports at *\demo\samples\jsondatasource
to run report and receive output pdf, etc. you can use REST API for Jasper Server
then you send output to end user

lHow to create Crystal Report by code in Asp.Net

I want to create a crystal report in asp.net with c# use through parameterized query by coding (not by wizard).
Create Crystal Reports on the Fly using ASP.NET.
I will show you how to dynamically
create new looking reports by using an
existing report. I consider that
close to creating reports on the fly.