Navigation: ABC Library Reference > BrowseClass > BrowseClass Methods >====== ScrollPage (scroll up or down one page)  ====== |    |
ScrollPage( scrollevent ), VIRTUAL, PROTECTED
| ScrollPage | Scrolls up or down one page of browse list items. |
| scrollevent | A numeric constant, variable, EQUATE, or expression that indicates the requested scroll action. Valid scroll actions for this method are scrolls up one page or down one page of browse list items. |
The ScrollPage method scrolls up or down one page of browse list items.
Implementation:
The BrowseClass.TakeScroll method calls the ScrollPage method.
A hexadecimal scrollevent value of EVENT:PageUp scrolls up one page of browse list items. A value of EVENT:PageDown scrolls down one page of browse list items. Corresponding scroll event EQUATEs are declared in EQUATES.CLW:
EVENT:PageUp EQUATE (05H)
EVENT:PageDown EQUATE (06H)
Example:
BrowseClass.TakeScroll PROCEDURE( SIGNED Event )
CODE
IF RECORDS(SELF.ListQueue)
CASE Event
OF Event:ScrollUp OROF Event:ScrollDown
SELF.ScrollOne( Event )
OF Event:PageUp OROF Event:PageDown
SELF.ScrollPage( Event )
OF Event:ScrollTop OROF Event:ScrollBottom
SELF.ScrollEnd( Event )
END
END
See Also: TakeScroll