gridview连接数据库出错，求大神解决

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using MySql.Data.MySqlClient;
public partial class _Default : System.Web.UI.Page
{
  protected void Page_Load(object sender, EventArgs e)
  {
  String CONN = "User Id=root;Host=localhost;Database=db_kc;password=12";
  MySqlConnection conn = new MySqlConnection(CONN);
  conn.Open();
  MySqlDataAdapter sda = new MySqlDataAdapter("select * from cp", conn);
  DataSet ds = new DataSet();
  sda.Fill(ds, "cp");
  DataTable dt = ds.Tables["cp"];
  GridView1.DataKeyNames = new string[] { "id" };
  GridView1.DataBind();
  }
}

最后的gridview1.databind()出错。Access denied for user 'root'@'localhost' (using password: NO)

急啊~~

看看你的连接参数是否有问题

conn.open()都没出错连接应该没有问题啊。

GridView1.DataSource = dt

GridView1.DataSource = dt
GridView1.DataBind();

GridView1.DataSource = dt
GridView1.DataBind();

另外检查连接字符串，密码是否正确。
Server=localhost;Database=db_kc; Uid=root;Pwd=;