who calls the constructor witth parameter (Castle.Windsor)

Question

I am learning castle.windsor following the tutorial online. this is the simple sample code:

public class Form1 {
    private readonly HttpServiceWatcher serviceWatcher;
    private System.ComponentModel.Container components = null;

public Form1()
{
    InitializeComponent();
}

public Form1(HttpServiceWatcher serviceWatcher) : this()
{
    this.serviceWatcher = serviceWatcher;
}
}

HttpServiceWatcher is in the xml conf file. My question is: who is calling the constructor that has the parameter: public Form1(Http....) ? at the program.cs i have this:

container.AddComponent("form.component",typeof(Form1));

Form1 form1 = (Form1) container["form.component"];

Application.Run(form1);

Answer 1

The dependency container itself creates the object (and thus calls the constructor).

Answer 2

but why does it call the constructor that has the parameter but not that parameterless constructor? what if i had 3 different constructors with 3 different parameters?

Answer 3

The container calls the constructor when it creates the requested object. The constructor that gets called is the constructor with the most arguments that the container can satisfy.