I have a textbox in ASP.NET web form, and I need to catch the paste event from right-click context menu. But I can't see where I can catch the associated event.
The onchange event is no use, as this is only triggered when the input field loses focus. Neither does OnKeyDown event since it is not a mouse event.
Any solution?
It is a common problem to which exists no good solution.
There is no cross-browser way to capture mouse paste event.
People are getting away with running a timer to detect any change soon after it's happened and then to react to it.
There is the paste event in some but not all browsers. IE has had it since version 4 or 5, I think, as well as beforepaste. Firefox I think got the paste event from version 3.0, and recent versions of WebKit have it (Chrome and Safari 4 have it at least), don't know about Opera. You'd have to research the specifics such as precisely which browsers support it and which element raise the event, but I would say it's still not widely enough supported to use on the general web.