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Hello!
I know this question has been asked in the past before, but I cannot find a clear step-by-step solution for what I would like to accomplish.
I need to have three dropdown menus where two are dependent on the previous dropdown menu selections. For example, using vehicles: Year, Make, Model. The Year dropdown would have a list of the years, the Make dropdown would base the vehicle manufacturer shown on what was selected in the Year dropdown (some manufacturers did not exist in certainyears), and the Model dropdown would base the vehicle models shown on what was selected in the Make dropdown. A similar scenario would apply with Countries, State, Cities.
What would be the easiest way to accomplish this? I have tried switch statements on both exit and pre-open for the dropdowns, but always end up with a pop-up warning that the field "cannot be left blank" upon selecting the dropdown arrow for the second dropdown box.
Thank you!
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