Combo Box

I want to load a combo box with values from a database table. Let say I have a products table and I want the product ID to be displayed in a combo box. When we choose product ID form the combo box it will jump to that the product in the table. Right now I have it doing this but it also changes the value in the database and I do not want this to happen.

Right now I have it doing this but it also changes the value in the database and I do not want this to happen.
```What is your code?
There is no need/reason for the data to change...

If you use a global as the dataprovider instead of the actual id-field, nothing will be changed in de db.