I have created a project so that I can sub-class the basic UI components (label, textbox, combobox, etc) from the .NET base classes before I use them in my WinForms forms in my main project. However, I am confused about exactly how I should do the sub-classing. When I click on "Add New Item" on my project, the dialog box shows several seemingly possible ways to create the desired subclasses:

After "Add New Item", I pick on "Visual C# Items", and then under the "Installed Visual Studio Templates" section I see several tempting choices like this:

Component Class
Custom Control
Class
Code File
User Control


So, which one is the right one to choose to sub-class say a textbox?

I prefere to use a designer surface if possible, or is this only done by hand-coding?