private void comboBox4_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            comboBox3.Items.Clear();
            List <GetTeamItem> list3 = new List <GetTeamItem>();
            string             tid   = (comboBox4.SelectedItem as ComboboxItem1).Value.ToString();

            con.Open();
            SqlCommand cmd = new SqlCommand("sel_chabid", con);

            cmd.CommandType = CommandType.StoredProcedure;
            cmd.Parameters.AddWithValue("@t_id", tid);
            using (IDataReader dr = cmd.ExecuteReader())
            {
                while (dr.Read())
                {
                    GetTeamItem it = new GetTeamItem();
                    it.id          = dr[1].ToString();
                    it.displayName = dr[2].ToString();
                    list3.Add(it);
                }
            }
            con.Close();
            foreach (GetTeamItem gt in list3)
            {
                ComboboxItem1 it = new ComboboxItem1();
                it.Text  = gt.displayName;
                it.Value = gt.id;
                comboBox3.Items.Add(it);
            }
        }
        public DsevPage()
        {
            InitializeComponent();
            con.Open();
            SqlCommand cmd  = new SqlCommand("select_team", con);
            SqlCommand cmd1 = new SqlCommand("select_tteam", con);

            cmd.CommandType  = CommandType.StoredProcedure;
            cmd1.CommandType = CommandType.StoredProcedure;
            using (IDataReader dr = cmd.ExecuteReader())
            {
                while (dr.Read())
                {
                    GetTeamItem at = new GetTeamItem();
                    at.id          = dr[1].ToString();
                    at.displayName = dr[2].ToString();
                    list1.Add(at);
                }
            }
            using (IDataReader dr = cmd1.ExecuteReader())
            {
                while (dr.Read())
                {
                    GetTeamItem at = new GetTeamItem();
                    at.id          = dr[1].ToString();
                    at.displayName = dr[2].ToString();
                    list2.Add(at);
                }
            }
            con.Close();
            foreach (GetTeamItem gt in list1)
            {
                ComboboxItem1 it = new ComboboxItem1();
                it.Text  = gt.displayName;
                it.Value = gt.id;
                comboBox4.Items.Add(it);
            }
            foreach (GetTeamItem gt in list2)
            {
                ComboboxItem1 it = new ComboboxItem1();
                it.Text  = gt.displayName;
                it.Value = gt.id;
                comboBox1.Items.Add(it);
            }
        }