Multiple SubReport Display in a single Report Object

I added multiple sub reports in the details field of a crystal report. But when i did this, i couldn't see the sub reports when I click "Mai开发者_开发问答n Report Preview". I know how to add sub reports and other necessary things.

So, my question is, is it possible to add multiple sub reports in a single crystal report?

My scenario is, I have a patient table. And Investigation table and TreatmentPlan table. I want to display the data of Investigation and TreatmentPlan and WorkDone table in the report of the Patient table as subreport. Is it possible?

I have Googled and searched in this site earlier but the answers i found there are not relevant to my problem. So, waiting for your suggestions. Thanks.

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To answer your question, yes, it is possible.

I recommend for testing your subreports, color them or use borders so you can see where they are on the report in preview mode. You can also click/select a subreport from the designer and see it selected in preview. That will help in debugging.

Other than that, I would need more information to answer this question.