when I clicked on video file nothing has happened.
Is that correct?
English Language & Usage Stack Exchange is a question and answer site for linguists, etymologists, and serious English language enthusiasts. It only takes a minute to sign up.Sign up to join this community
No, that would imply that the effect would have come before the cause, i.e. that the video would have been shown before you clicked to show it.
You should keep the same tense for cause and effect, as the effect if expected to come almost immediately.
When I clicked on a video file, nothing happened.
When I click on a video file, nothing happens.
That is not entirely correct. Here is how I'd say it:
When I clicked on the video file, nothing happened.
There is an issue with semantics as well. You don't actually click on a file, but on an icon or a label or some other on-screen element that represents the file. I would rewrite the sentence as:
when I clicked on the video, nothing happened
Or, if you want to emphasise the "file" aspect of the interaction:
when I clicked on the video file [icon/title/etc.], nothing happened