Question

I am thinking to work on two combos for: country and city.

当用户在一只 com船中选择国家时,其城市应居住在城市 com带。

For it:
1.) Prepare 2 javascript variables: first one with countries id and name, second one with cities id, name and country_id

For Countries:
[ {"id":1, "title":"uk"}, {"id":3, "title":"US"}, {"id":6, "title":"CANADA"}, {"id":8, "title":"AUSTRALIA"} ]
and For Cities:
[ {"id":1, "country_id":1, "city":"LONDON"}, {"id":3, "country_id":1, "city":"Manchester"}, {"id":4, "country_id":2, "city":"New YORK"}, {"id":5, "country_id":2, "city":"New Jersey"}, {"id":8, "country_id":8, "city":"MELBOURN"} ]

Now:
1.) How do i populate the above country data to country combobox?
2.) How do i populate the related cities data to the city combobox when user selects the country?

Answer 1

My Man I Love Pure Javas

名单页: 1

首先,这是一种 j子物体的权利,因此,如果使用电子阀功能进行扼杀,你就有必要加以揭穿。

var jsonobject = eval(json string);

然后通过该物体进入dl

......

那么,它就象这样说了。

用于装满 d子和装饰内

var ddl_countries= document.getElementById( countriesdropdownid ) var ddl_country_option = document.createElement( option ); ddl_country_option.innerHTML = text //from the object; ddl_country_option.value = value //from the object; ddl_countries.appendChild(ddl_country_option);

对城市具有约束力的措施

如果你要求提供更多描述的iam,仅能告诉我,我会相互交错,而且我会写出完整的法典,那么对城市来说,变化是一样的。

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