In .NET, how do you make a customized control that does not display on the windows form?

Question

How do you make a customized control that does not display on the windows form, like the SerialPort or the BackgroundWorker or ImageList control?

Answer 1

Inherit from Component rather than Control.

Answer 2

Add a new class to your project and paste the code shown below. Compile. Drop the new component from the top of the toolbox onto the form. Embellish as desired.

using System;
using System.ComponentModel;

[DefaultProperty("Aardvark")]
class MyFoo : Component {
    public MyFoo() { }
    public MyFoo(IContainer container) { container.Add(this); }

    [DefaultValue(0)]
    public int Aardvark { get; set; }
}