asp.net+jquery+ztree实现树形选择

[AjaxPro.AjaxMethod]

   public DataTemp GetSendCity(string citylist,string schemeid)

   {

       StringBuilder data = new StringBuilder();

       DataTemp datatmp = new DataTemp();

       datatmp.Arraydata = new List<CustomTreeNode>();

       try

       {

           Kaitone.Model.Scheme.Scheme schemetemp = new Scheme();

           if (schemeid.Length > 0)//业务变更

           {

               schemetemp = schbll.GetSchemeModelByGUID(schemeid);

           }

          

           Kaitone.UI.BLL.SysConfig.City bll = new Kaitone.UI.BLL.SysConfig.City();

           List<Kaitone.Model.City> list = new List<Kaitone.Model.City>();

           list = bll.GetList().CityData;

           StringBuilder sb = new StringBuilder();

           string[] strlist = citylist.Split(';');//这是拆分开的，每一个box对应的位置的guid哦

           List<int> selectcity = schemetemp.SendCityList.Select(a => a.CityID).ToList();

           if (list != null)

           {

               sb.Append("[");//{ id:1, pId:0, name:"随意勾选 父 1", open:true},

               foreach (Kaitone.Model.City pos in list.Where(a => a.ParentID == 0))

               {

                   if (selectcity.Contains(pos.CityID))//包含这个城市了，被选择了。

                   {

                       sb.Append("{id:\"" + pos.CityID.ToString() + "\",pId:0,name:\"" + pos.CityName.ToString() +

                           "\","

                           + GetChildCity(selectcity, true, pos.CityID, list, datatmp) + ", checked:true , font:{'color':'blue'},iconSkin:\"pIcon01\"},");

                       CustomTreeNode onetree = new CustomTreeNode();

                       onetree.id = pos.CityID.ToString();

                       onetree.pId = pos.ParentID.ToString();

                       onetree.name = pos.CityName;

                       datatmp.Arraydata.Add(onetree);

                   }

                   else

                   {

                       sb.Append("{id:\"" + pos.CityID.ToString() + "\",pId:0,name:\"" + pos.CityName.ToString() +

                       "\","

                        + GetChildCity(selectcity, false, pos.CityID, list, datatmp) + ",  font:{'color':'blue'},iconSkin:\"pIcon01\"},");

                   }

               }

               if (sb.Length > 1)

               {

                   sb.Remove(sb.Length - 1, 1);

               }

               sb.Append("]");

               datatmp.TreeData = sb.ToString();

               return datatmp;

           }

           else

           {

               return new DataTemp();

           }

       }

       catch (Exception ex)

       {

           return new DataTemp();

       }

   }

   /// <summary>

   /// 根据位置获取对应的box列表

   /// </summary>

   /// <param name="pos"></param>

   /// <returns></returns>

   public string GetChildCity(List<int>selectcity, bool isparentchecked,int parentid,List<City> Citylist,DataTemp datatemp)

   {

       List<Kaitone.Model.City> list = Citylist.Where(a=>a.ParentID==parentid).ToList();

       StringBuilder sb = new StringBuilder();

       if (list != null)

       {

           sb.Append("childs:[");

           if (list.Count == 0) { return "isParent:true,nocheck:true"; }

           foreach (Kaitone.Model.City city in list)

           {

               if ((selectcity.Contains(city.CityID)  || isparentchecked))

               {

                   sb.Append("{id:\"" + city.CityID.ToString() +

                           "\",pId:\"" + parentid.ToString() + "\",name:\"" + city.CityName

                           + "\", font:{'color':'blue'},checked:true},");

                   CustomTreeNode onetree = new CustomTreeNode();

                   onetree.id = city.CityID.ToString();

                   onetree.pId = city.ParentID.ToString();

                   onetree.name = city.CityName;

                   datatemp.Arraydata.Add(onetree);

               }

               else

               {

                   sb.Append("{id:\"" + city.CityID.ToString() +

                           "\",pId:\"" + parentid.ToString() + "\",name:\"" + city.CityName

                           + "\", font:{'color':'blue'}},");

               }

              

           }

           if (sb.Length > 1)

           {

               sb.Remove(sb.Length - 1, 1);

           }

           sb.Append("]");

           return sb.ToString();

       }

       else

       {

           return "isParent:true,nocheck:true";

       }

   }