User objects and windows
The LinesPerPage property determines the number of lines on a page for scrolling purposes. PowerBuilder multiplies Units Per Line by Lines Per Page to determine the number of PowerBuilder units to scroll the window vertically when the user clicks in the scroll bar. For information on calculating LinesPerPage and UnitsPerLine, see “Scrolling in windows and user objects”.
To control the horizontal scroll bar in a window or user object, use the UnitsPerColumn and ColumnsPerPage properties.
To set the LinesPerPage property:
Enter the desired number (between 1 and 100) in the Lines Per Page option on the Scroll tab page of the window’s Properties view.
The LinesPerPage property takes an integer value between 1 and 100. The following line sets LinesPerPage for a window to 20:
This.LinesPerPage = 20
