🔒 Closed add/subtract quantity in datagridview with database

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carljed

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need po ako ng code paano mag add at subtract ng quantity sa datagridview with database

example: quantity=100 sa datagridview
mag input po ako ng 20 sa quantity textbox pagkatapos e click ung save button ung quantity sa datagridview ay maging 80

please pa help po for school project thanks
 
Ganito ba ? ..
Ex. mag buy ng product tpos yung quantity is 188 then example nag buy ng 5 pagkatapos mag buy isave na pag tingin ulit sa datagriv 183 nlng yong quantity nabawasan ng 5 . ganyan ba ? tingnan mo SS ko ..
QVP7isY.webp

DvnX14o.webp
TC3B6T4.webp
 
Ganito ba ? ..
Ex. mag buy ng product tpos yung quantity is 188 then example nag buy ng 5 pagkatapos mag buy isave na pag tingin ulit sa datagriv 183 nlng yong quantity nabawasan ng 5 . ganyan ba ? tingnan mo SS ko ..
QVP7isY.webp

DvnX14o.webp
TC3B6T4.webp

sir anong programming language po ba gamit mo para dito?
 
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