转:c# winform comboBox动态下拉列表，comboBox动态绑定数据库里的数据

c# winform comboBox动态下拉列表，comboBox动态绑定数据库里的数据
public void InsertComShopID(ComboBox cb)
2
或者

string ConnectionString = "Data Source=dzjc_2005;user=kk;password=kk;";//写连接串
2 OracleConnection conn = new OracleConnection(ConnectionString);//创建一个新连接
3
4 conn.Open();
5 OracleCommand cmd = conn.CreateCommand();
6 cmd.CommandText = "SELECT rname,did,rchannel FROM nwvideo.n_road ";//在这儿写sql语句
7 OracleDataReader dr = cmd.ExecuteReader();//创建一个OracleDateReader对象
8
9if (dr.HasRows)
10