public string Search(string regName, string key, string ds, int?pageSize, int?pageIndex)
{
var pagination = new Pagination();
pagination.PageSize = pageSize ?? 28;
pagination.PageIndex = pageIndex ?? 0;
SetPostDataSet(ds);
key = key ?? "";
var dt = GetCodeTableInstance(regName);
pagination.AppendToDataSet(PostDataSet, regName);
var res = dt.Search(PostDataSet, key);
//pagination.TotalCount = res.Count();
SelectorModel model = new SelectorModel();
model.List = res.ToList();
model.Index = pagination.PageIndex;
model.Size = pagination.PageSize;
model.Total = PostDataSet.Tables[regName + "_PAGER"].Rows[0]["TotalCount"].Value <int>();
//res = res.Skip((pagination.PageIndex - 1) * pagination.PageSize).Take(pagination.PageSize).ToList();
return(ReturnJson(model == null ? new SelectorModel() : model));
}