Eas immigration intermediary

1. Define a method. Button 1 _ click (provided by valsendras system. Object, byvaleassystem. Eventargs) includes a return value and input parameters. The English name is Event Handler.

2. Meanwhile, bind this method to buttON 1. Click the event.

in addition

In VB.net, the definition of an event is based on the keyword event, for example:

Public event salary security event (byval sender as EmployeeWithEvents, ByVal e as EventArgs)