.net dropdownlistbox控件的Javascript验证?

试试这个

var countries = [
   {
       name:'USA',
       states:[
            {
                name:'New York',
                cities:['New York','Albany',...,'Some place']
            },
            {
                name:'Florida',
                cities:['Miami','Ft Loterdale']
            }
       ]
   },
   {
        name:'Canada' ...
   }
]

data: { 
  "United States" : {
    "California" : ["San Francisco","San Jose","Watsonville"],
    "Alaska" : ["Anchorage","Juneau"]
  },
  "Canada" : {
    "Alberta" : ["Calgary","another town"]
  }
}

这使得它与地域无关,不需要“州”、“市”、“省”等名称。使用

for(var key in data) { var country = data[key]; var state = data[key][territory] }

或者使用任意数量的对象遍历方法。