public void ResetScroll()
{
if (scroller)
{
itemListScrollBar.Reset(listDisplayUnits);
}
}
int GetSafeScrollIndex(VerticalScrollBar scroller, bool delayScrollUp)
{
// Get current scroller index
int scrollIndex = scroller.ScrollIndex;
if (scrollIndex < 0)
{
scrollIndex = 0;
}
// Ensure scroll index within current range
if (!delayScrollUp && scrollIndex + scroller.DisplayUnits > scroller.TotalUnits || scrollIndex >= scroller.TotalUnits)
{
scrollIndex = scroller.TotalUnits - scroller.DisplayUnits;
if (scrollIndex < 0)
{
scrollIndex = 0;
}
scroller.Reset(scroller.DisplayUnits, scroller.TotalUnits, scrollIndex);
}
return(scrollIndex);
}
/// <summary>
/// Gets safe scroll index.
/// Scroller will be adjust to always be inside display range where possible.
/// </summary>
int GetSafeScrollIndex(VerticalScrollBar scroller)
{
// Get current scroller index
int scrollIndex = scroller.ScrollIndex;
if (scrollIndex < 0)
scrollIndex = 0;
// Ensure scroll index within current range
if (scrollIndex + scroller.DisplayUnits > scroller.TotalUnits)
{
scrollIndex = scroller.TotalUnits - scroller.DisplayUnits;
if (scrollIndex < 0) scrollIndex = 0;
scroller.Reset(scroller.DisplayUnits, scroller.TotalUnits, scrollIndex);
}
return scrollIndex;
}