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I want to create a form to add orders and a form that contains a table that contains the quantity of goods in the store, the purchase price and the selling price. When adding an order to the customer, the quantity of the goods in stock, the purchase price and the selling price, and when saving the order, the quantity purchased by the customer automatically decreases from the store.  I apologize for the poor expression because I am not good at English

Cher Darek, j'ai posté un problème, pouvez-vous me donner la solution s'il vous plaît

Thank you very much, but when you press the save button, do not close the form until you press three times

Thank you very much Darak
I have another problem, please, which is the sum of prices does not appear automatically in the textbox even after pressing the Save button (when pressing the Save button, the form does not close and the total prices appear in the textbox) as shown in the attached screenshot of the file

Excellent work Thank you very much derk