Occurs when the user clicks in the open space below the scroll box.
Event ID |
Objects |
|---|---|
pbm_sbnpagedown |
VScrollBar, VTrackBar |
None
Long. Return code choices (specify in a RETURN statement):
0 Continue processing
When the user clicks in a vertical scroll bar, nothing happens unless you have scripts that change the scroll bar’s Position property. For the scroll bar arrows, use the LineUp and LineDown events; for clicks in the scroll bar background above and below the thumb, use the PageUp and PageDown events; for dragging the thumb itself, use the Moved event.
Example 1 This code in the VScrollBar’s PageDown event uses a predetermined paging value stored in the instance variable ii_pagesize to change the position of the scroll box (you would need additional code to change the view of associated controls according to the scroll bar position):
IF This.Position > &
This.MaxPosition - ii_pagesize THEN
This.Position = MaxPosition
ELSE
This.Position = This.Position + ii_pagesize
END IF
RETURN 0
Example 2 This example changes the position of the scroll box by a predetermined page size stored in the instance variable ii_pagesize and scrolls forward through a DataWindow control 10 rows for each page:
long ll_currow, ll_nextrow
This.Position = This.Position + ii_pagesize
ll_currow = dw_1.GetRow()
ll_nextrow = ll_currow + 10
dw_1.ScrollToRow(ll_nextrow)
dw_1.SetRow(ll_nextrow)
