MidItems.TWebDataInput
Delphi
TWebDataInput = class(TWebDataDisplay, IRestoreDefaults, IDataSetField, IValidateField)
C++
class PASCALIMPLEMENTATION TWebDataInput : public TWebDataDisplay
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| class | public | MidItems.pas MidItems.hpp |
MidItems | MidItems |
Description
TWebDataInput is the base class for Web items that create HTML display controls for entering information.
Use TWebDataInput as a base class for components that generate HTML controls which display information in an InternetExpress application and into which users can enter values. TWebDataInput descendants generate controls that are organized by TDataGrid, TFieldGroup, or TQueryFieldGroup.
TWebDataInput defines or inherits properties and methods for
Generating a caption that describes the information displayed.
Customizing the appearance of the control that displays information.
Specifying a field or parameter whose value the control displays.
Fitting the control into the tab order of the generated HTML form.
Fitting the component into a hierarchy of Web items that collectively generate the content of an HTML document.
In order to let other Web items to use the HTML control it generates, TWebDataInput inherits the IWebContent interface from TWebDataDisplay.
Do not create instances of TWebDataInput. TWebDataInput relies on an abstract (pure virtual) method for generating the display control. Instead, use a descendant of TWebDataInput that generates an HTML control of the desired type.