C＃：MySQL的例外是未處理

Question

MySql.Data.MySqlClient.MySqlException類型的未處理的異常出現在MySql.Data.dll

其他信息：每當我試圖運行我的程序

Access denied for user 'groupdes_ling'@'60.50.32.226' (using password: YES) 

出現此錯誤。該編碼粘貼下面：

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Linq; 
using System.Text; 
using System.Threading.Tasks; 
using System.Windows.Forms; 
using MySql.Data.MySqlClient; 

namespace GroupDesignProject 
{ 
    public partial class Form1 : Form 
    { 
     public Form1() 
     { 
      InitializeComponent(); 
     } 

    private void button1_Click(object sender, EventArgs e) 
    { 

    } 

    private void textBox1_TextChanged(object sender, EventArgs e) 
    { 
     string MyConnectionString = "Server=31.220.105.189;Database=groupdes_GDP;Uid=groupdes_ling;Pwd=0164851286;"; 

     MySqlConnection connection = new MySqlConnection(MyConnectionString);//create connection 
     MySqlCommand cmd; 
     connection.Open();//connect to database 

      //write INSERT command and execute 
      cmd = connection.CreateCommand();//create command 
      cmd.CommandText = "INSERT INTO trial (Name)values ('" + textBox1.Text + "');"; 
      cmd.ExecuteNonQuery(); 

      //disconnect from database 
      if (connection.State == ConnectionState.Open) 
      { 
       connection.Close(); 
      }   
    } 
} 

}

我仍然不能設法解決這個錯誤。感謝您的幫助

Answer 1

您需要將該用戶/主機/密碼組合的權限添加到MySQL實例。例如;

GRANT ALL ON *.* to 'groupdes_ling'@'60.50.32.226' IDENTIFIED BY 'Password';