import fl.controls.DataGrid;
import fl.controls.ScrollPolicy; 

var dg:DataGrid = new DataGrid();
dg.addColumn("Column1");
dg.addColumn("Column2");
dg.addItem({Column1:"Row 1 Col 1", Column2:"Row 1 Col 2"});
dg.addItem({Column1:"Row 2 Col 1", Column2:"Row 2 Col 2"});

dg.horizontalScrollPolicy = ScrollPolicy.ON;
dg.width = 100;
dg.rowCount = dg.length;
dg.move(10, 10);
addChild(dg);