asp.net mvc - Mvc Dynamic Menu Populating plain text

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asp.net mvc - Mvc Dynamic Menu Populating plain text

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

I have created the N'th level Dynamic Menu recursive method which creates a menu.

As seen in above picture the content is returned to ParialView named "_Menu.cshtml" and this Partial View file is empty.

and then there is a _LayoutPage.Cshtml

    <!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>@ViewBag.Title</title>
</head>
<body>
    <div>
        <div>
            <input type="text" id="txtSearch" />
            <button id="btnSearch">Search</button>
         </div>
        <div id="Menu">
            @{Html.RenderAction("_Menu", "Home"); }
            @Html.Partial("_Menu")
        </div>
        <div>
            @RenderBody()
        </div>
    </div>
</body>
</html>

it successfully puts the result into the browser but as a plain text as i mentioned above and can be seen below.

How can i make these act like links, not like a plaintext? Help will be appreciated. Thanks :)

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1 Answer

深蓝 · Answer 1 · 2021-10-23T21:33:48+0000

Though War resolved my query above. But i still want to answer for people for whom the above answer seem complex. in most easiest possible way in MVC to populate Dynamic Navigation Menu from Database.

in Controller:

    public ActionResult Index()
{
    Menu menu_ = new Menu();
    ViewBag.Menu = menu_.getMenuList();
    return View();
}

in _layoutpage.Cshtml

        <div id="Menu">
       @{ List<WebApplicationMVC.Core.Models.menu> All = ViewBag.Menu;}
        <ul>
            @foreach (var One in All.Where(m => m.ParentId == 0))
            {
                List<WebApplicationMVC.Core.Models.menu> Child = All.Where(m => One.id == m.ParentId).ToList();
                if (Child.Count > 0)
                {
                    if(One.ActionLink == "Yes")
                    {
                        <li>
                            @Html.ActionLink(One.Name, One.Action, One.Controller)
                            @SubMenu(One, All)
                        </li>
                    }
                    else
                    {
                        <li>
                            @One.Name;
                            @SubMenu(One, All)
                        </li>
                    }
                }
                else
                {
                    <li>@Html.ActionLink(One.Name, One.Action, One.Controller)</li>
                }
            }
        </ul>

        @helper SubMenu(WebApplicationMVC.Core.Models.menu Object, List<WebApplicationMVC.Core.Models.menu> List)
        {
        List<WebApplicationMVC.Core.Models.menu> subChilds = (from a in List where Object.id == a.ParentId select a).ToList();
        <ul>
            @foreach (var subOne in subChilds)
            {
                List<WebApplicationMVC.Core.Models.menu> InnerChilds = (from a in List where subOne.id == a.ParentId select a).ToList();
                if (InnerChilds.Count > 0)
                {
                    if (subOne.ActionLink == "Yes")
                    {
                        <li>
                            @Html.ActionLink(subOne.Name, subOne.Action, subOne.Controller)
                            @SubMenu(subOne, List)
                        </li>
                    }
                    else
                    {
                        <li>
                            @subOne.Name
                            @SubMenu(subOne, List)
                        </li>
                    }
                }
                else
                {
                    <li>@Html.ActionLink(subOne.Name, subOne.Action, subOne.Controller)</li>
                }
            }
        </ul>
        }
    </div>

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