JQuery DataTables 元素显示并切换但排序根本不起作用？答案

【问题标题】：JQuery DataTables elements show up and toggle but sorting doesnt work at all?JQuery DataTables 元素显示并切换但排序根本不起作用？
【发布时间】：2020-03-05 04:05:59
【问题描述】：

我一直在尝试在我的项目中添加 jQuery DataTables。用于排序和搜索的 UI 元素会显示出来，但排序不像大多数教程所说的那样开箱即用。我正在使用 .net Core MVC 3.1

我的 .Net Core 页面布局文件：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>@ViewData["Title"] - FouksAsg5Dealer</title>
    <link rel="stylesheet" href="~/lib/bootstrap/dist/css/bootstrap.min.css" />
    <link rel="stylesheet" href="~/css/site.css" />
    <link href="~/lib/datatables/css/jquery.dataTables.css" rel="stylesheet" />
    <link href="~/lib/datatables/css/jquery.dataTables_themeroller.css" rel="stylesheet" />
</head>
<body>
    <header>
        <nav class="navbar navbar-expand-sm navbar-toggleable-sm navbar-light bg-white border-bottom box-shadow mb-3">
            <div class="container">
                <a class="navbar-brand" asp-area="" asp-controller="Home" asp-action="Index">FouksAsg5Dealer</a>
                <button class="navbar-toggler" type="button" data-toggle="collapse" data-target=".navbar-collapse" aria-controls="navbarSupportedContent"
                        aria-expanded="false" aria-label="Toggle navigation">
                    <span class="navbar-toggler-icon"></span>
                </button>
                <div class="navbar-collapse collapse d-sm-inline-flex flex-sm-row-reverse">
                    <ul class="navbar-nav flex-grow-1">
                        <li class="nav-item">
                            <a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="Index">Home</a>
                        </li>
                        <li class="nav-item">
                            <a class="nav-link text-dark" asp-area="" asp-controller="Car" asp-action="List">Cars</a>
                        </li>
                        <li class="nav-item">
                            <a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="Privacy">Privacy</a>
                        </li>
                        <li class="nav-item">
                            <a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="About">About</a>
                        </li>
                    </ul>
                </div>
            </div>
        </nav>
    </header>
    <div class="container">
        <main role="main" class="pb-3">
            @RenderBody()
        </main>
    </div>

    <footer class="border-top footer text-muted">
        <div class="container">
            &copy; 2020 - Connor Fouks - <a asp-area="" asp-controller="Home" asp-action="Privacy">Privacy</a>
        </div>
    </footer>
    <script src="~/lib/jquery/dist/jquery.min.js"></script>
    <script src="~/lib/bootstrap/dist/js/bootstrap.bundle.min.js"></script>
    <script src="~/lib/datatables/js/jquery.dataTables.js"></script>
    <script src="~/js/adminCarTable.js" asp-append-version="true"></script>

    @RenderSection("Scripts", required: false)
</body>
</html>

页面本身：

@{
    ViewData["Title"] = "List";
}
    
<h1>Admin Car List</h1>

<table id="adminCarTable" class="">
    <thead>
        <tr>
            <th>ID</th>
            <th>Make and Model</th>
            <th>Year</th>
            <th>Price</th>
            <th>Mileage</th>
            <th>Color</th>
            <th>Edit</th>
            <th>Delete</th>
        </tr>
    </thead>
    @foreach (var car in @Model)
    {
        <tbody>
            <tr>
                <td>@car.ID</td>
                <td>@car.MakeModel</td>
                <td>@car.Year</td>
                <td>@car.Price</td>
                <td>@car.Mileage</td>
                <td>@car.Color</td>
                <td>
                    <form asp-area="Admin" asp-controller="Car" asp-action="Edit" method="post" class="fillParent">
                        <input type="hidden" name="id" value="@car.ID" />
                        <input type="submit" value="Edit" class="btn btn-secondary fillParent" />
                    </form>
                </td>
                <td>
                    <form asp-area="Admin" asp-controller="Car" asp-action="Delete" method="post" class="fillParent">
                        <input type="hidden" name="id" value="@car.ID" />
                        <input type="submit" value="Delete" class="btn btn-danger" />
                    </form>
                </td>
            </tr>
        </tbody>
    } 
</table>

我的自定义 java 脚本文件：

// turns the table into a sortable table.
$(document).ready(function () {

    $('#adminCarTable').DataTable();
});

加载页面的屏幕截图： screenshot of list with sorting UI and searchbox

显示排序标题的可视元素的元素。它们甚至在单击时切换，但表格不会改变。下拉菜单还显示应该只显示 10 条记录，但我的所有记录都在显示。任何帮助将不胜感激。

【问题讨论】：

标签： javascript jquery datatables

【解决方案1】：

欢迎来到 StackOverflow。

tbody 标记需要在 foreach 循环之外，否则它会被添加多次并搞砸一切。

试试：

<tbody>
    @foreach (var car in @Model)
    {

            <tr>
                <td>@car.ID</td>
                <td>@car.MakeModel</td>
                <td>@car.Year</td>
                <td>@car.Price</td>
                <td>@car.Mileage</td>
                <td>@car.Color</td>
                <td>
                    <form asp-area="Admin" asp-controller="Car" asp-action="Edit" method="post" class="fillParent">
                        <input type="hidden" name="id" value="@car.ID" />
                        <input type="submit" value="Edit" class="btn btn-secondary fillParent" />
                    </form>
                </td>
                <td>
                    <form asp-area="Admin" asp-controller="Car" asp-action="Delete" method="post" class="fillParent">
                        <input type="hidden" name="id" value="@car.ID" />
                        <input type="submit" value="Delete" class="btn btn-danger" />
                    </form>
                </td>
            </tr>

    } 
</tbody>

【讨论】：