| Level | Ancestor | Description |
|---|
| 1 | TObject | Ultimate ancestor in a class hierarchy |
| 2 | TWebPageComponent |
Abstract base class for components within a web page that can be rendered to a THtmlElement.
|
| 3 | TDefaultWebPageComponent |
Base class for TWebPageComponent with a caption
|
| 4 | TFormField |
Abstract base class for form fields that can occur on a web page.
|
| 5 | Old_TTextBasedStorageFormField | Old deprecated convenience base class for a TFormField that allows its value being input using text. |
| 6 | TFormTextField | |
| 7 | TFormShortTextField | TFormField for editing a single line of text. |
| 8 | TFormDateTimeField | |