private void GetJsonForCombobox(HttpContext context) { string enumCode = context.Request.QueryString["enumCode"]; SysEnum seBll = new SysEnum(); var dic = seBll.GetKeyValueByParent(enumCode); if (dic == null || dic.Count() == 0) { context.Response.Write("[]"); } string json = ""; foreach (var kvp in dic) { json += "{\"id\":\"" + kvp.Key + "\",\"text\":\"" + kvp.Value + "\"},"; } context.Response.Write("[" + json.Trim(',') + "]"); }