table control

Hi All,

I created a screen with table control materilal and plant and 2 push buttons for save and all plants

when i hit all plants the table control is popultaing with 30 plants out of which only 19 plants are visible on screen we have to scroll down to see the remainig plants,

when i hit save in PAI it is validateing only 1st 19 records in chain and end chain it is not validating the remaing entries if i scroll down it is validating the fields which are visible,

can any one tell me how to validate all the records in table control.

Thanks