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Print multiple copies of the same RDLC report

I have a RDLC reports that print some data based on a certain query. What I'm trying to do now is to print the same report (with different data based on a different value for the primary key) multiple time without having different files to print.
Let's say I have 3 reports of 2 pages each, I want a single report of 6 pages.
I used to do that in Crystal Report XI simply by putting a group on my primary key but I haven't been able to replicate that in Visual Studio Report Designer.
I need a preview is possibile so I can't just print them one after another.

You could make a combined report that loads the three reports as subreports. There's loads of useful information at gotreportviewer.com/subreports. It's easy if the three different reports are in three different .rdlc files. The situation is slightly more complicated when you want to use the same .rldc file for more than one subreport in the same combined report. A subreport has parameters passed to it, and gets its DataSet through the SubreportProcessing event handler. The solution I came up with was to pass a ReportID parameter to the subreport; then, the SubreportProcessing event handler asks what the ReportID is, and passes back the DataSet appropriate for the report.
You may need to modify your reports slightly to make them work as both "main" reports and subreports. Subreports don't print the header or footer, so if you had important data there you'll need to move that to the body of the report. Also if you use the ReportID trick, then you may need to modify the report to take the ReportID parameter.
Good luck!

After some digging I actually solved my issue using PdfSharp.
It works wonderfully for me because I don't need multiple rdlc files, I just do a loop and then export all to pdf.

Crystal Report page split up and encrypting the generated document in C#

I am generating payslip report for the employees in Crystal Report tool (C# coding), based on from and to employee id's, the report gets generated.
I have to save the report in a PDF format based on employee wise (separate PDF document for every employees - split up), in a define path , by automatically (through programming), and also I have to encrypt the generated documents (password protected).

I will suggest a solution that is far from ideal, but since you are in a hurry, it may help.
To "separate pdf": generate one report for one employee at a time; or generate them all and use a tool to split the PDF.
About encryption, i don't know if the PDF format or the Adobe Reader has something ready to support it, but you could zip the files with password. I believe it can be done programatically or, at least, with batch commands.

How to design report at run time SSRS

most of the time we point store procedure or table and then SSRS report designer show us field and we just drag drop those field on to report designer surface. after all we call those report programmatically and pass parameter and report shown on report viewer.
now my company want that customer will customize the report who will see the report. they want to display all the fields in a form and just customer will select each field and place on report designer surface and give some input like filter condition like date range or employee id etc and report will be shown. also at run time if customer want they can add text or move existing field etc.
i do not have any idea how could i do this with SSRS. if this is possible with SSRS then please guide me in such a way as a result i can start the job or if possible give me few relevant url of that kind from where i can get the idea. thanks

SSRS is capable of reading reports generated on-the-fly, but they have to be made just right. SSRS reports are XML documents that specify the data structure and report object structures and how the two are related. Using Visual Studio, you can use certain classes to create the XML document which is then read & filled with data on the server, then exported to the client as a standard webpage.
Here is a link to a tutorial. This should be a good starting point.

Here is a small but working example of generating RDL on-the-fly with some useful links to MSDN documentation: "How to dynamically generate SSRS Report in Code"
Hope it helps!

Crystal report export to multiple tabs of excel

Hi I have a report with in section as group. each group is having 1000 records and each group information should come in different tab of excel. As i know there is no direct method to export to excel in different tabs with sap crystal as it is a limitation of crystal. Is there any workaround to add each group into different tab of same excel output. I am using vs2010 to create reports with oracle package.procedure as backend. taking ref cursor output to report.

You can burst the report creating a separate excel file for each group and then join all the files in one excel file. You can implement this in your application or to use one of the tools available on the market. There 2 report schedulers able to do this: R-Tag and Visual Cut. R-Tag has also a report viewer, which can export to multiple worksheets and will be a cheaper solution compared to the scheduler. You might check also if this feature is available in their free license.

Is it possible to append multiple Crystal Reports in a single viewer?

I'm trying to generate several reports and show them as one document in a viewer.
Can't seem to find any way of doing this.
Thanks for any help! :)

3 Suggestions:
1) To give the appearance of one viewer with multiple reports you could append viewers to the page and suppress all toolbars.
2) To have multiple reports for a single viewer you would need to make each of the reports a subreport in another report.
3) If the report is not going to be interactive(ie - paging, links, drill down, etc) you could just generate pdf's for each report and merge them.

Is the identity of the reports known at design time? If so, you could embed all of them into another report as sub reports and run the parent report