尝试连接时遇到错误。下面是我的代码：

public void BindData()
{
    MySqlConnection con = new MySqlConnection("server=localhost;user id=root;database=abc");
    con.Open();

    MySqlCommand cmd = new MySqlCommand("Select * from register", con);
    MySqlDataAdapter adp = new MySqlDataAdapter(cmd);
    DataSet ds = new DataSet();
    adp.Fill(ds);

    GridView1.DataSource = ds;
    GridView1.DataBind();
    cmd.Dispose();
    con.Close();
}

但它给出以下错误：