在寫MVC第二篇前，我發現真的用ARAS元件導入MVC可能會有點四不像，畢竟大部分都用IOM去取得、修改、刪除資料，MVC專注點分離的部分就會不太明顯，因此本人還需要再研究看看，如果有人願意分享也提點小弟一下顆顆。

登入機制做法

登入頁面

登入完成

首先登入完成後，把Innovator物件存入Session["innovator"]，並且在每一個Create、Edit、Delete事件加上驗證登入邏輯，判斷Session["innovator"]是否存在，不存在則轉址到登入頁。
Controller 新增LoginController

        // GET: Login
        public ActionResult Index()
        {
            if (Session["innovator"] != null)
            {
                
            }
            return View();
        }
        [HttpPost]
        public ActionResult Index(LoginInfo[] info)
        {
            string message = "";
            if (info != null)
            {
                HttpServerConnection cnx = IomFactory.CreateHttpServerConnection(info[0].網路位址, info[0].資料庫名稱,info[0].帳號, info[0].密碼);
                Item login_result = cnx.Login();
                if (login_result.isError())
                {
                    message = "登入失敗:" + login_result.getErrorString();
                }
                else {
                    message = "登入成功";
                    Session["innovator"] = login_result.getInnovator();

                    string uID = login_result.getInnovator().getUserID();
                    Session["user_id"] = uID;
                    Session["user_name"] = login_result.getInnovator().getItemById("User", uID).getProperty("keyed_name", "");
                }
                TempData["Result"] = message;
                
                return RedirectToAction("Index", "Home");
            }
            return RedirectToAction("Index", "Home");
        }

        public ActionResult Logout()
        {
            Session["innovator"] = null;
            
            return RedirectToAction("index");
        }
    }

View 新增Index

@{
    ViewBag.Title = "Index";
}

<h2>登入</h2>

@using (Html.BeginForm())
{
    <div class="form-group">
        @Html.Label("網路位址", htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.TextBox("info[0].網路位址","http://localhost/plm",new { htmlAttributes = new { @class = "form-control" } })
            
        </div>
    </div>
    <div class="form-group">
        @Html.Label("資料庫名稱", htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.TextBox("info[0].資料庫名稱", "InnovatorSolutions", new { htmlAttributes = new { @class = "form-control" } })

        </div>
    </div>
    <div class="form-group">
        @Html.Label("帳號", htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.TextBox("info[0].帳號","admin", new { htmlAttributes = new { @class = "form-control" } })

        </div>
    </div>
    <div class="form-group">
        @Html.Label("密碼", htmlAttributes: new { @class = "control-label col-md-2" })
        <div class="col-md-10">
            @Html.Editor("info[0].密碼", new { htmlAttributes = new { @class = "form-control" } })

        </div>
    </div>
    <div class="form-group">
        <div class="col-md-offset-2 col-md-10">
            <input type="submit" value="確定" class="btn btn-default" />
        </div>
    </div>
}
<div>
    @Html.ActionLink("返回首頁", "Index","Home")
</div>

@section Scripts {
    @Scripts.Render("~/bundles/jqueryval")
}

在Layout.cshtml設定使用者登入狀態

<!-- start: User Dropdown -->
    <li class="dropdown">
        @if (Session["innovator"] != null)
        {
            <a class="btn dropdown-toggle" data-toggle="dropdown" href="#">
                <i class="halflings-icon white user"></i>@Session["user_name"]
                <span class="caret"></span>
            </a>
            <ul class="dropdown-menu">
                <li class="dropdown-menu-title">
                    <span>Account Settings</span>
                </li>
                <li><a href="#"><i class="halflings-icon user"></i> Profile</a></li>
                <li><a href="@Url.Action("Logout","Login")"><i class="halflings-icon off"></i> Logout</a></li>
            </ul>
        }
        else
        {
             <li><a href="@Url.Action("Index","Login")"><i class="halflings-icon off"></i> Login</a></li>
        }
    </li>