How to assign alv grid to custom control in a screen?

Hi,

I have created a custom control in a screen. Now i want to assign my alv grid to that custom control which i have named 'ALV_GRID1'.

I am currently using FM REUSE_ALV_GRID_DISPLAY to display ALV. Maybe i need to OO way to display ALV?

Reason for using a custom control is to restrict the ALV grid window because i am planning on having some other parameters in the same screen as alv.

Some sample code or reference to SAP standard where they are implementing this logic would be great.

Thanks