基于用户权限的启用/禁用按钮[C# MySQL]

// 用户登录验证
public bool AuthenticateUser(string username, string password)
{
    // 连接数据库
    MySqlConnection connection = new MySqlConnection("连接字符串");
    connection.Open();

    // 查询用户信息
    MySqlCommand command = new MySqlCommand("SELECT * FROM users WHERE username = @username AND password = @password", connection);
    command.Parameters.AddWithValue("@username", username);
    command.Parameters.AddWithValue("@password", password);

    // 执行查询
    MySqlDataReader reader = command.ExecuteReader();

    // 验证用户身份
    bool isAuthenticated = reader.HasRows;

    // 关闭连接
    reader.Close();
    connection.Close();

    return isAuthenticated;
}

// 设置按钮可用性
public void SetButtonEnabled(Button button, string role)
{
    // 根据用户角色设置按钮可用性
    if (role == "管理员")
    {
        button.Enabled = true;
    }
    else
    {
        button.Enabled = false;
    }
}