I would just refer to them as "registrations".

"There are no registrations for this event" should cover it.

>>>>Participants would be correct if they go to something that they have an active part in (speaking, panel discussion, etc).
>>>>
>>>
>>>Interesting, thanks again. I'm not sure if they would be actively participating...
>>
>>I've read this entire thread and I have to admit, I'm not sure what you are actually trying to say?
>>
>>"There are no attendance's for this Event."
>>
>>I doubt you are trying to say that no one will be there?
>>
>>Are you trying to say no one has said they will be there yet?
>>
>>or Are you trying to say there will be no roll call or record of attendance?
>
>We have a Calendar with various events for which people should register. When you click on the Calendar item, it should display people who registered for this event (I'm not really working with this page right now, but I assume this is the functionality). So, if no one is registered, we need some message to display. The events I think, can be future and past events (but if no one came I guess the event was cancelled).
>
>My colleague (non-native English speaker) asked another person here (who is a native speaker) and he suggested the first form of the phrase. We both thought it is not right, so we agreed on "There are no participants for this Event".
>
>I then decided to find out the best way to say this phrase, but I don't think we're going to change this in the code.