>Thanks
>
>But i want save this value in table .
>How can i do this ?
Just calculate the value whenever you need it. What advantage would you have from the additional field?
You can calculate the value in a grid column, with a view, or with an object that does calculations for each record.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)
