Horizontal Scrolling in DataGrids with many Columns
Posted by Travis Collins at May 1, 2008 12:51 PM
Out of the box, horizontal scrolling in datagrids with many columns is not smooth; especially if your view has many visible rows. A cheap and easy way around this is to disable "liveScrolling". Without liveScrolling, the datagrid will not redraw until mouseUp from the scroll.
To improve on that, I wanted to have vertical liveScrolling and horizontal non-liveScrolling. The solution is simply to use the following function as an event handler for the "scroll" event on the dataGrid.
private function dataGridScroll(event:ScrollEvent):void
{
exhaustGrid.liveScrolling = (event.direction == "vertical");
}
The downside is that the first vertical scroll after a horizontal scroll will not be a live scroll. I am sure there is an easy way around that.
