What is the minimum code to subclass a control, it all look very confusing to me... Do i need to implement the Dispose() and the InitializeComponent methods ? or is this code would be just fine:

using System;
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Drawing;
using System.Windows.Forms;


namespace Test.GUI
{
	[ToolboxBitmap(typeof(TextBox))]
	public class _EditBox : System.Windows.Forms.TextBox 
	{
		public _EditBox() : base()
		{
			this.Multiline = true;
		}
	}
}

See, i'm looking to subclass all controls i will use, and probably add more functionallity later to them.