>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:
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>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:
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>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?

Designer wouldn't be of much use for a subclass of something like a textbox.

Code File would be fine for this.

Message #1184898 would be a good start for the contents.