/// <summary>
/// 在省级区划范围内尝试通过县级区划反向查询市级区划
/// </summary>
private void FindCityReverse()
{
var list = (from r in _Citys
join c in Countys on r.ID equals c.ParentId
let alias = c.Alias.Split(',').FirstOrDefault(_Address.Contains)
let key = alias ?? c.Name
let index = GetIndex(key)
where index >= 0
orderby index
select new { region = c, index, key }).ToList();
if (!list.Any())
{
if (!"北京,天津,上海,重庆".Contains(_Province.Alias))
{
return;
}
_City = Citys.Single(c => c.ParentId == _Province.ID && c.Name == "市辖区");
return;
}
var county = list.First();
_County = county.region;
_City = Citys.Single(c => c.ID == _County.ParentId);
_Towns = Towns.Where(t => t.ParentId == _County.ID).ToList();
SetIndex(county.index, _County.Name, county.key);
FindTown();
}
/// <summary>
/// 通过县级行政区划反查省市
/// </summary>
/// <returns>Address 结构化地址数据</returns>
private void ReverseFromCounty()
{
var list = (from c in Countys
let alias = c.Alias.Split(',').FirstOrDefault(_Address.Contains)
let key = alias ?? c.Name
let index = GetIndex(key)
where index >= 0
orderby index
select new { region = c, index, key }).ToList();
if (!list.Any())
{
return;
}
var county = list.First();
_County = county.region;
_City = Citys.Single(c => c.ID == _County.ParentId);
_Province = Provinces.Single(p => p.ID == _City.ParentId);
SetIndex(county.index, _County.Name, county.key);
FindTown();
}
