void InitializationContrls1() { PWorkScheduleBll pwsb = new PWorkScheduleBll(); List <PWorkSchedule> list = pwsb.selectPWorkScheduleBll("selectPWorkSchedule"); List <string> strlist = new List <string>(); foreach (PWorkSchedule item in list) { strlist.Add(item.CompanyName); } if (strlist.Count > 0) { comb_companyName.DataSource = strlist; } }