/// <summary>
/// 页面加载方法;
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Page_Load(object sender, EventArgs e)
{
if (IsPostBack) //页面回发事件:用于判断是否更新当前页面里面的内容;
{
return; //如果不写,页面的值不会更新;默认为true,是不更新
}
#region 省份下拉列表绑定
var ps_list = ps.GetAllProvince();
this.ddlProvince.DataSource = ps_list;
this.ddlProvince.DataValueField = "Id";
this.ddlProvince.DataTextField = "Title";
this.ddlProvince.DataBind();
#endregion
//只显示对应的城市 不显示无效的;
//三级联动:指的是三个下拉列表根据相互的值 互相改变;
#region 市下拉列表绑定
int pid = int.Parse(ps_list.Rows[0]["Id"].ToString());
var cs_list = cs.GetCityBiPid(pid);
this.ddlCity.DataSource = cs.GetCityBiPid(pid);
this.ddlCity.DataValueField = "Id";
this.ddlCity.DataTextField = "Title";
this.ddlCity.DataBind();
#endregion
#region 区下拉列表绑定
int cid = int.Parse(cs_list.Rows[0]["Id"].ToString());
this.ddlArea.DataSource = ase.GetAreaBiCid(cid);
this.ddlArea.DataValueField = "Id";
this.ddlArea.DataTextField = "Title";
this.ddlArea.DataBind();
#endregion
Bind();//调用数据绑定方法
}
public static IList <ProvinceInfo> GetAllProvinceInfo()
{
return(new CacheUtility <IList <ProvinceInfo> >().Get(KEY_ALLPROVINCECITY, delegate()
{
ProvinceService proviDal = new ProvinceService();
return proviDal.GetAllProvince();
}, 60 * 12));
}