Saving Data on a Form

Question

Hi everyone,

I have a minor problem with one of my assignments. I want my child form to show defalut values on open. When i update the data or change the existing data i want it to be saved and then when i reopen the form i want those values to be shown. To elaborate more, I have a parent form and child form. When i select an item from a combo box in parent form and click on update button, the child form opens and shows default values. And then when i change the default values and click the update button in the child form the values need to be changed. So when i close the child form and reselect the same product and click update from parent form. The new values need to be shown. I am attaching a link to my code. Please take a look