我收到此错误（system.web.mvc.webviewpage< tmodel> .model.get返回null。） [英] I am getting this error (system.web.mvc.webviewpage<tmodel>.model.get returned null.)
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问题描述
Home Controller
public ActionResult Index()
{
MenuModel ObjMenuModel = new MenuModel();
ObjMenuModel.MainMenuModel = new List<MainMenu>();
ObjMenuModel.MainMenuModel = GetMainMenu();
ObjMenuModel.SubMenuModel = new List<SubMenu>();
ObjMenuModel.SubMenuModel = GetSubMenu();
return View(ObjMenuModel);
}
public List<MainMenu> GetMainMenu()
{
List<MainMenu> ObjMainMenu = new List<MainMenu>();
ObjMainMenu.Add(new MainMenu { ID = 1, MainMenuItem = "Home", MainMenuURL = "#" });
ObjMainMenu.Add(new MainMenu { ID = 2, MainMenuItem = "System Setup", MainMenuURL = "#" });
return ObjMainMenu;
}
public List<SubMenu> GetSubMenu()
{
List<SubMenu> ObjSubMenu = new List<SubMenu>();
ObjSubMenu.Add(new SubMenu { MainMenuID = 2, SubMenuItem = "Customer Information", SubMenuURL= "Employer" });
ObjSubMenu.Add(new SubMenu { MainMenuID = 2, SubMenuItem = "Chart Of Accounts", SubMenuURL = "CompanyProfile" });
return ObjSubMenu;
}
My Model
namespace Ron_Financial_Management_System.Models
{
public class MenuModel
{
public List<MainMenu> MainMenuModel { get; set; }
public List<SubMenu> SubMenuModel { get; set; }
}
public class MainMenu
{
public int ID;
public string MainMenuItem;
public string MainMenuURL;
}
public class SubMenu
{
public int MainMenuID;
public string SubMenuItem;
public string SubMenuURL;
}
}
我的布局视图
My Layout view
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>@ViewBag.Title</title>
<link href="~/Content/Site.css" rel="stylesheet" type="text/css" />
<script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>
<link href="~/Content/bootstrap.min.css" rel="stylesheet" />
<link rel="shortcut icon" type="image/x-icon" href="~/Ron.ico" />
<script src="~/Scripts/modernizr-2.6.2.js"></script>
<link href="~/Content/style.css" rel="stylesheet" type="text/css" />
<script src="https://canvasjs.com/assets/script/canvasjs.min.js"></script>
<script src="~/Scripts/jquery-1.12.4.min.js"></script>
<link href="~/Content/font-awesome/css/font-awesome.min.css" rel="stylesheet" type="text/css" />
@*<script src="@url.Content("~/Scripts/jquery-1.8.3.js")" type="text/javascript"></script>
<script src="@url.Content("~/Scripts/jquery-ui.min.js")" type="text/javascript"></script>*@
<script src="../../Scripts/script.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function () {
$("#accordian h3").click(function () {
$("#accordian ul ul").slideUp();
if (!$(this).next().is(":visible")) {
$(this).next().slideDown();
}
});
});
</script>
</head>
<body>
@using System.Web.Optimization
@model Ron_Financial_Management_System.Models.MenuModel
@using (Html.BeginForm("_Layout", "Shared"))
{
<div id="wrapper">
<div id="menuTop">
<table>
<tr>
<td align="center"><a href="@Url.Action("Logout","Login")">Logged In As:</a> </td>
<td align="center"><a href="@Url.Action("Logout","Login")">Last Login:</a></td>
<td align="center"><a href="@Url.Action("Logout","Login")">Logout</a> </td>
</tr>
</table>
</div>
<div id="menuLogo">
Logo
</div>
<div id="banner">
<img id="img_logo" alt="Logo" src="@Url.Content("~/Content/Images/RFMS_Brand.png")" />
</div>
<div id="columnLeft">
<div id="accordian">
<ul>
<li>
@{
if(Model.MainMenuModel==null){
<span>no items found</span>
}
else {
foreach (var MenuItem in Model.MainMenuModel)
{
var SubMenuItem = Model.SubMenuModel.Where(m => m.MainMenuID == MenuItem.ID);
<h3><a href="@MenuItem.MainMenuURL"> @MenuItem.MainMenuItem </a></h3>
if (SubMenuItem.Count() > 0)
{
<ul>
@foreach (var SubItem in SubMenuItem)
{
<li><a href='@SubItem.SubMenuURL'>@SubItem.SubMenuItem</a></li>
}
</ul>
}
}
}
}
</ul>
</div>
<br />
</div>
<div id="content"> @RenderBody()</div>
<div id="menuBottom" aling="center">
© Copyright @DateTime.Now.Year Ron Technologies Ltd
</div>
</div>
}
@Scripts.Render("~/bundles/jquery")
@Scripts.Render("~/bundles/bootstrap")
@RenderSection("scripts", required: false)
</body>
</html>
My Emplyer view
My Emplyer view
@model Ron_Financial_Management_System.Employer
@*@model Ron_Financial_Management_System.Models.MenuModel*@
@{
Layout = "~/Views/Shared/_Layout.cshtml";
}
<h4>Employer</h4>
我是什么尝试过：
What I have tried:
Can someone kindly guide me on what could be the problem?
当我点击下拉菜单检查雇主链接时我得到上述错误，我已经尝试了所有方法但没有成功，请帮助
注意：我正在接受此行在我的布局视图中（
when i click at the drop down menu examle the employer link i get the above error, i have tried all means without success kindly help
Note: i am geting the at this line in my layout view (
foreach (var MenuItem in Model.MainMenuModel)
）
推荐答案
（文件）.ready（function（）{
(document).ready(function () {
（＃accordian h3）。click（function（）{
("#accordian h3").click(function () {
（＃accordian ul ul）。slideUp（）;
if（！
("#accordian ul ul").slideUp(); if (!
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