combobox的错误:无法绑定到新的显示成员!急!请进~
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
  {
  string ConStr = "Data Source=localhost;Integrated Security=SSPI;" +
  "Initial Catalog=fcfn";
  string Sql = "select zyname from zydm where cc=" + "'" + comboBox1.Text + "'";
  SqlConnection SqlConn = new SqlConnection(ConStr);
  SqlConn.Open();
   
  SqlDataAdapter da = new SqlDataAdapter(Sql, SqlConn);
  DataSet ds = new DataSet();
  da.Fill(ds, "zydm");
  DataTable dt = ds.Tables["zydm"];
  comboBox2.DataSource = dt;
  comboBox2.DisplayMember = comboBox1.Text;
  comboBox2.ValueMember = comboBox1.Text;
  SqlConn.Close();
  }

以上是我的代码,麻烦各位帮忙为什么会出现如题的错误!谢谢!

------解决方案--------------------
SqlDataAdapter da = new SqlDataAdapter(Sql, SqlConn);
DataSet ds = new DataSet();
da.Fill(ds,"zydm");
comboBox2.DataSource = ds.Tables[0];
comboBox2.DisplayMember = "zydm";
comboBox2.ValueMember = "zyname";
SqlConn.Close();

这个 你看看 我的能行