public int Divide(int a, int b) { int result = 0; if (b == 0) { OurOwnEventArgs e = new OurOwnEventArgs(); e.MessageArgs = "divide zero"; DivideZeroEvent(this, e); //invoke event } else { result = a / b; } return result; //DemoDelg dlg = new DemoDelg }
void cls_DivideZeroEvent(object sender, OurOwnEventArgs e) { MessageBox.Show(e.MessageArgs); }