protected void B_Find_Click(object sender, EventArgs e)
        {
            bool saveChange           = true;
            ManagerUserSystem manager = new ManagerUserSystem();

            if (string.IsNullOrEmpty(T_Code.Text.Trim()))
            {
                L_State.Enabled = true;
                L_State.Text    = "Don't leave empty fields.";
                saveChange      = false;
            }

            if (saveChange)
            {
                BLSystemUser user = manager.ChargeUser(T_Code.Text.Trim());
                if (user != null)
                {
                    List <BLSystemUser> list = new List <BLSystemUser>();
                    list.Add(user);
                    grid_User.DataSource = list;
                    grid_User.DataBind();
                }
                else
                {
                    L_State.Text = "This user doesn't exist.";
                }
            }
        }
        protected void B_Find_Click(object sender, EventArgs e)
        {
            bool saveChange           = true;
            ManagerUserSystem manager = new ManagerUserSystem();

            if (string.IsNullOrEmpty(T_Code.Text.Trim()))
            {
                L_State.Enabled = true;
                L_State.Text    = "Don't leave empty fields.";
                saveChange      = false;
            }

            if (saveChange)
            {
                BLSystemUser user = manager.ChargeUser(T_Code.Text.Trim());
                if (user != null)
                {
                    Text_Name.Text     = user.SystemUserName;
                    Text_Password.Text = user.SystemUserPassword;
                    string role = user.SystemUserRole;
                    if (role.Equals("Admin"))
                    {
                        role = "Administrator";
                    }
                    else
                    {
                        role = "Kitchen User";
                    }
                    Text_Role.Text = role;
                }
                else
                {
                    L_State.Text = "This user doesn't exist.";
                }
            }
        }