采用easyui tree编写简单角色权限代码的方法

$('#Permission').dialog({ title: '栏目权限', closed: false });
$('#rtt').tree({
  url: 'ashx/RoleService.ashx?action=RoleTree&Rid=' + raw.ID,
  method: 'get',
  animate: true,
  checkbox: true
});
$('#Rid').val(raw.ID);

case "RoleTree":
  string Rid = context.Request.Params["Rid"];
  int Roleid = Convert.ToInt32(Rid);
  List<tree> treelist = getChildren("Angel_Admin_Navigation", "0", Roleid);
  Newtonsoft.Json.Converters.IsoDateTimeConverter timeConverter = new Newtonsoft.Json.Converters.IsoDateTimeConverter();
  timeConverter.DateTimeFormat = "yyyy'-'MM'-'dd";
  string ResJsonStr = JsonConvert.SerializeObject(treelist, Formatting.Indented, timeConverter);
  context.Response.ContentType = "text/plain";
  context.Response.Clear();
  context.Response.Write(ResJsonStr);

//Tree递归调用
public List<tree> getChildren(string tableName, string fid, int RoleId)
{
  DBHelperSql Dbhelper = new DBHelperSql();
  List<tree> list = new List<tree>();
  DataTable dt = Dbhelper.GetDataTable(tableName, " ParentId='" + fid + "' ");
  if (dt.Rows.Count > 0)
  {
    for (int i = 0; i < dt.Rows.Count; i++)
    {
      tree tree = new tree();
      tree.id = dt.Rows[i]["NavName"].ToString();
      tree.text = dt.Rows[i]["TitleName"].ToString();
      if(OperateBll.IsRoleoperateDataExist(dt.Rows[i]["NavName"].ToString(),RoleId)){
      tree.@checked =true;
      }
      tree.children = getChildren(tableName, dt.Rows[i]["id"].ToString(),RoleId);
      list.Add(tree);
    }
  }
  else
    list = null;
 
  return list;
}
//tree属性
public class tree
{
  public string id { get; set; }
  public string text { get; set; }
  public bool @checked { get; set; }
  public List<tree> children { get; set; }
}