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Making annotations on a project document to provide feedback.Signing a document and sharing it online.Here are several use cases where you’re not a regular PDF user but still need a robust and free PDF tool to deal with the task at hand: MyButton.Click += ( object sender, System.Part 1: When Would You Need to Edit PDFs for Free? Part 2: TOP Free PDF Editor for Windows Part 3: Best Free PDF Editor for Mac Part 4: TOP Free PDF Editor Online Part 5: Online PDF Editor VS PDF Editor Offline Part 6: Which Type of Free PDF Editor is Best for You? Part 1: When Would You Need to Edit PDFs for Free?Īs the world becomes more digitally transformed, it's inevitable that you will come across PDF documents in the course of a normal day - invoices, contracts, eBooks, bank statements, credit card statements, tax forms, insurance forms… these are just some of the examples of the widespread use of PDF. So, this is exactly what you could do (instead of awkward sub-classing and using .InvokeOnClick: You really need to call some method normally called when an event is invoked. In real development, you don't need an event itself, not an actual click.

To use it, one should create a derived class from any of the control classes.Ĭonceptually, this is possible but redundant. This way, one can directly invoke the event in the base class, but only because of this method which was exposed to the derived classes (and only for them, through the protected access modifier) to provide some back door to simulation of the click. It has the method InvokeOnClick which actually invokes the Click event, please see: Since we have multicast delegates, why do we need events?. Please see my recent answer on this topic: This is a one of the limitations of event instances, in contrast to 'regular' delegate instances, an important fool-proof feature of events.

It is not possible to do anywhere else, not even it the derived class.

Technically, a event can be invoked only in a class where the event is declared. The question was about simulation of an event like a click event.

Top rated free c compiler for windows 10