htmlasp.net-corekendo-ui

Using kendoui in ASP.NET Core - does not work correctly

I want to use kendoui in my ASP.NET Core project.

I have following parts - _Layout.cshtml:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>@ViewData["Title"] - CarWash</title>

    <!-- Bootstrap & Kendo CSS -->
    <link rel="stylesheet" href="~/lib/bootstrap/dist/css/bootstrap.min.css" />
    <link href="~/kendoo/css/kendo.rtl.min.css" rel="stylesheet" />
    <link href="~/kendoo/css/kendo.common-material.min.css" rel="stylesheet" />
    <link href="~/kendoo/css/kendo.default-ocean-blue.min.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-fluid">
                <a class="navbar-brand" asp-area="" asp-controller="Home" asp-action="Index">CarWash</a>
                <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-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 justify-content-between">
                    <ul class="navbar-nav flex-grow-1">
                        <li class="nav-item">
                            <a class="nav-link text-dark" asp-area="" asp-controller="Service" asp-action="Create">Create Service</a>
                        </li>
                        <li class="nav-item">
                            <a class="nav-link text-dark" asp-area="" asp-controller="Car" asp-action="Create">Create Car</a>
                        </li>
                        <li class="nav-item">
                            <a class="nav-link text-dark" asp-area="" asp-controller="Service" asp-action="Index">Index Service</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; 2024 - CarWash - <a asp-area="" asp-controller="Home" asp-action="Privacy">Privacy</a>
        </div>
    </footer>

    <!-- Load jQuery, Bootstrap, Kendo, and Site Scripts -->
    <script src="~/lib/jquery/dist/jquery.min.js"></script>
    <script src="~/lib/bootstrap/dist/js/bootstrap.bundle.min.js"></script>

    <script src="~/kendoo/js/kendo.all.min.js"></script>
    <script src="~/kendoo/js/kendo.aspnetmvc.min.js"></script>
    <script src="~/kendoo/js/kendo.web.min.js"></script>
    <script src="~/kendoo/js/kendo.messages.fa-ir.min.js"></script>
    <script src="~/js/site.js" asp-append-version="true"></script>

    <!-- Render any additional page scripts -->
    @await RenderSectionAsync("Scripts", required: false)
</body>
</html>

My Create.cshtml:

@model CarWash.Models.ServiceModel

<style>
    .form-floating > label{
        right: 0px !important;
    }
</style>

<div class="row" dir="rtl">
    <div class="col-md-4 form-floating">
        <input id="CustomerName" class="form-control text-end" asp-for="CustomerName" placeholder="Customer Name" />
        <label for="CustomerName">Customer Name</label>
    </div>
    <div class="col-md-4 form-floating">
        <input id="PhoneNumber" class="form-control text-end" asp-for="PhoneNumber" placeholder="Phone Number"/>
        <label for="PhoneNumber">Phone Number</label>
    </div>
  
    @* <select id="CarId" class="form-control" asp-for="CarId" asp-items="(List<SelectListItem>)ViewBag.Cars">

    </select> *@
      
            <div class="col-md-4 k-rtl col-md-4">
                @(Html.Kendo().ComboBoxFor(x => x.CarId)
                    .Placeholder("Select Car")
                    .DataTextField("Text")
                    .DataValueField("Value")
                    .DataSource(source =>
                    {
                        source.Read(r => r.Action("Car_Read", "Service"));
                    })
                    .Filter(FilterType.StartsWith)
                 )
            </div>
</div>
<button class="btn btn-primary mt-3" onclick="Save()">Insert</button>

It is not work correctly. I mean the combobox shows nothing. But if I put the following scripts:

<!-- Load jQuery, Bootstrap, Kendo, and Site Scripts -->
<script src="~/lib/jquery/dist/jquery.min.js"></script>
<script src="~/lib/bootstrap/dist/js/bootstrap.bundle.min.js"></script>

<script src="~/kendoo/js/kendo.all.min.js"></script>
<script src="~/kendoo/js/kendo.aspnetmvc.min.js"></script>
<script src="~/kendoo/js/kendo.web.min.js"></script>
<script src="~/kendoo/js/kendo.messages.fa-ir.min.js"></script>
<script src="~/js/site.js" asp-append-version="true"></script>

Just before the following part, it works; but I don't want to do that:

<div class="container">
    <main role="main" class="pb-3">
        @RenderBody()
    </main>
</div>

How may IO solve this?

Solution

  • If you must have the scripts after the footer, instead of in the <head> tag then you can do so. You'll have to use deferred initialization:

    1. Call the .Deferred() method of the component, as a last fluent method of it's configuration.

          <div class="col-md-4 k-rtl col-md-4">
        @(Html.Kendo().ComboBoxFor(x => x.CarId)
            .Placeholder("Select Car")
            .DataTextField("Text")
            .DataValueField("Value")
            .DataSource(source =>
            {
                source.Read(r => r.Action("Car_Read", "Service"));
            })
            .Filter(FilterType.StartsWith)
            .Deferred()
         )
    </div>

    2. At the end of the page, after the jQuery script and the kendo scripts call the DeferredScritps() method to output the scripts:

      <footer class="border-top footer text-muted">
   <div class="container">
        &copy; 2024 - CarWash - <a asp-area="" asp-controller="Home" asp-action="Privacy">Privacy</a>
   </div>
</footer>

<!-- Load jQuery, Bootstrap, Kendo, and Site Scripts -->
<script src="~/lib/jquery/dist/jquery.min.js"></script>
<script src="~/lib/bootstrap/dist/js/bootstrap.bundle.min.js"></script>

<script src="~/kendoo/js/kendo.all.min.js"></script>
<script src="~/kendoo/js/kendo.aspnetmvc.min.js"></script>
<script src="~/kendoo/js/kendo.web.min.js"></script>
<script src="~/kendoo/js/kendo.messages.fa-ir.min.js"></script>
<script src="~/js/site.js" asp-append-version="true"></script>

<script>
  @Html.Kendo().DeferredScripts(false)
</script>

<!-- Render any additional page scripts -->
@await RenderSectionAsync("Scripts", required: false)