Problem: horizontal scrollbar for flex datagrid

I have 10 columns in datgrid so i want datagrid to be horizontally scrollable. Im getting vertical scrollbar(auto generated without s开发者_如何转开发pecifying vertical scroll policy on) for mxDatagrid but Im not getting horizontal scrollbar. how to solve this? Im using flex 4.

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please make the horizontalScrollPolicy="on" then it will display the scroll

and i also refer this link

this might be helpful to u

Faster Horizantal scroll