Scroll a Touch screen based Winform Grid using Up and Down buttons,Without Scroll bar

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C#

C#4.0

Hi
I need to develop touch based application that will run on a touch screen EPOS system..
I am able to display a DataGrid and scroll through it (25 records a) using FirstDisplayedScrollingRowIndex property,but
when click on next time nothing happened.
When click on next Up button i need to diaplay next 25 records like mobile phone application
Each time when up or down button click, should display 25 records based on up and down button
Could someone please tell me how to do this develop for a windows forms DataGrid?

Thanks
Binu