下拉框ajax特效

下拉框ajax特效

在layout主模板或者view中加入<%= javascript_include_tag 'prototype' %>

在需要放置下拉框的地方设置
  
   <%= collection_select(:member, :company_province, @province, :provinceid, :province,options ={:prompt => '一级分类'},
  html_options = {:onChange => remote_function(:update => "person_area_places_box",
      :url => { :action => :select_change}, :with => "'provinceid='+value" )} ) %>


  <span id="person_area_places_box">

</span>

再controller中定义

def select_change
    @city=City.find(:all, :conditions => ["fatherid = ?",params[:provinceid]])
    render:partial => "city"
  end


再创建一个_city.rhtml