var p = _root.createObject("DataGrid","button2",5,{_width:200,_height:201});
data_array = new Array();
var i:Number;
for(i=0;i<50;i++){
data_array.push({label:"abcd" + i, data:"1000"});
}

p.dataProvider = data_array;

p.rowHeight = 23;
p.hScrollPolicy = "on";