public void loadRegisteredGroups(string enrollno) { foreach (string groupid in ConnC.GetFullColumn("select GroupId from groupsof_" + enrollno.ToLower(), ConnC.con)) { string GetRegisteredGroupsQuery = "SELECT * from tbl_groups where GroupID='" + groupid + "'"; RegisterdGroups.Add(ConnC.GetAllGroups(GetRegisteredGroupsQuery)[0]); } Clients.Caller.loadRegisteredGroups(RegisterdGroups); }