Pass a method as a parameter [duplicate]

Answer 1

c# .net2.0 - Let me show a detailed answer for the topic (pass-a-method-as-a-parameter). In my scenario i'm configuring a set of System.Timers.Timer-s, each with a different _Tick method.

delegate void MyAction();

// members
Timer tmr1, tmr2, tmr3;
int tmr1_interval = 4.2, 
    tmr2_interval = 3.5;
    tmr3_interval = 1;


// ctor
public MyClass()
{
  ..
  ConfigTimer(tmr1, tmr1_interval, this.Tmr_Tick);
  ConfigTimer(tmr2, tmr2_interval, (sndr,ev) => { SecondTimer_Tick(sndr,ev); }); 
  ConfigTimer(tmr3, tmr3_interval, new MyAction((sndr,ev) => { Tmr_Tick((sndr,ev); }));
  ..
}

private void ConfigTimer(Timer _tmr, int _interval, MyAction mymethod)
{
  _tmr = new Timer() { Interval =  _interval * 1000 };
  // lambda to 'ElapsedEventHandler' Tick
  _tmr.Elpased += (sndr, ev) => { mymethod(sndr, ev); };
  _tmr.Start();
}

private void Tmr_Tick(object sender, ElapsedEventArgs e)
{
  // cast the sender timer
  ((Timer)sender).Stop();
  /* do your stuff here */
  ((Timer)sender).Start();
}

// Another tick method
private void SecondTimer_Tick(object sender, ElapsedEventArgs e) {..}