KBItem (subclass of KBObject)

Display expression (expr)

Expression for value to be displayed in the control. If empty, then the control is not set by the query.

Read Only (rdonly)

Set this option to prevent update of the displayed value by the user. Note that the control can still be updated from a script.

No Update (noupdate)

If this option is set, the database is never updated from the control (even if the contents are changed). This is useful if you wish to display a value in more that one control, and all but done are marked as read only

Tab order (taborder)

Tab and shift-tab cycle through controls in increasing tab order. A tab order of zero means that the control cannot be entered by tabbing.

Default value (default)

Default value to use if field is not entered

Error Text (errtext)

Text used to customise various popups. Currently only used at block level by record insert/update/delete confirmation dialogs.