jqgrid incorrect select drop down option values in edit box

Question

I am using form edit. There are two select boxes in the form. One select box is the country, another select box is the state. The state select box depends on the country sel

Answer 1

I am using form edit. There are three select boxes in the form. One select box is the country, one select box is the city,another select box is the street. The city select box depends on the country selected and will be populated dynamically. The street select box depends on the city selected and will be populated dynamically. I save Country、City、Street in MySQL. If I choose country，how do change city select box from MySQL table