c# - How do I pass an object into a timer event?

Question

Ok so I am using System.Timers.Timer in .Net 4 with C#.

I have my timer object like so:

var timer = new Timer {Interval = 123};

I have my Timer Elapsed event handler pointed at a method like so:

timer.Elapsed += MyElapsedMethod;

And my method looks like this:

static void MyElapsedMethod(object sender, ElapsedEventArgs e)
{
    Console.WriteLine("Foo Bar");
}

I want to pass a string into this method, how do I do this?

Thanks

Answer 1

The easiest way to do this is to change the event handler into an anonymous function. It allows you to pass the string at the point of declaration.

string theString = ...;
timer.Elapsed += (sender, e) => MyElapsedMethod(sender, e, theString);

static void MyElapsedMethod(object sender, ElapsedEventArgs e, string theString) {
  ...
}