create new instance of itemrenderer in MX DataGrid

I want to create new instance of item renderer for my data grid.

A single instance of your Item Renderer class (ListIR) is created for each visible item of the list-based control.

As the user scrolls through the items of a data grid control, Item Renderer instances are recycled rather than creating new instances.

But i would like to create new instance ..while scrollling ite开发者_如何学Cm in datagrid.

any idea how to achieve it .

thanks in advance javaamtho

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Set useVirtualLayout to false for your list. More information is here.