A case where it's usefull to use anonymous methods feature of C# 2.0

Brahim Benbachir — Fri, 29 Sep 2006 15:44:00 GMT

In C# 1.0, when you wanted to start a thread, you were obliged to write code like this:

private void button1_Click(object sender, EventArgs e)
{
Thread t = new Thread(new ThreadStart(Method));
t.Start();
}

void Method()
{
MessageBox.Show("Thread has started");
}

In C# 2.0, you can use the new feature that are anonymous methods

private void button1_Click(object sender, EventArgs e)
{
Thread t2 = new Thread(delegate() {
MessageBox.Show("Thread has started");
});
t2.Start();
}

Anonymous methods are usefull when only a delegate will suffice, preventing us from polluting our class definition with small methods that are used only once.

Same thing with Thread initialization but with parameters:

private void button1_Click(object sender, EventArgs e)
{
Thread t3 = new Thread(delegate(object o) {
MessageBox.Show(o.ToString());
});
t3.Start("Thread has started with parameters");
}

PS: If you still want to have methods instead of anonymous methods, you can use this shorter sentence in C# 2.0:

Thread t = new Thread(Method);
t.Start();

This is known as delegate inference. it permits you to make a direct assigment of a method name to a delegate and the compiler can infer it.

Unpacking...

Brahim Benbachir — Thu, 28 Sep 2006 16:18:00 GMT

Hi everyone,

I'm starting a new blog here. You can have access to my old blog at this place

Regards