Update single field

[mithani]

Hello friends,

I have one delivery advice form. What I want that whenever I fill up all field and press print button, system should look the purchse order number in purchase order table and update "PrintOut" filed which is bolean, as a TRUE. So if some one wants to print, he can only print duplicate.

thanks

mithani

 

[mithani]

bob please help me. thanks