SqlConnection con=db.createconnection();
 con.Open();
SqlCommand cmd=new SqlCommand("INSERT INTO memberMessage                                             (membername,membersex,memberage,;memberdp,memberpawd,memberdetail,memberphone) VALUES('"+this.txtname.Text+"','"+this.rbtnsex.SelectedIndex.ToString()+"','"+this.txtage.Text+"','"+this.dpdlist.DataValueField.ToString()+"','"+this.txtpawd.Text+"','"+this.TextBox1.Text+"','"+this.txtphone.Text+"')",con);
            
con.Close()
怎么回记录在数据库中不有显示???