Displaying datatable properly

Hi,
When I run the appilcation,GUI page is displayed which contains a panel ...
and a datatable containg id,designation,name address of employee is dynamically created but here lies the problem..
At the display time ,half of the datatable goes behind the panel..as a result of which, only half part is visible..I need to move the sliding bar of datatable everytime to view the datatable fully....Panel is fixed...
I dont know how to set the property of panel or datatable ..so that panel and datatable is displayed fully..