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问题:
I am trying to create a Telerik Grid view but when I go to reference kendo it does not recognize it. Visual Studio is giving me an error when I try to reference kendo. This is the code @(Html.Kendo().Grid) and below is the error.
'System.Web.Mvc.HtmlHelper<dynamic>' does not contain a definition for 'Kendo' and no extension method 'Kendo' accepting a first argument of type 'System.Web.Mvc.HtmlHelper<dynamic>' could be found (are you missing a using directive or an assembly reference?)
I have added a bundle in the BundleConfig file for both Scripts and Content. Also I have added @Scripts.Render("~/bundles/kendo") and @Styles.Render("/Content/kendo") directly to the razor view.
Many articles that i've read suggest that adding <add namespace="Kendo.Mvc.UI"/> to the Web.Config file would work but it still is throwing out the same error.
Is there something that I am missing?
回答1:
The problem is that you have not included a reference to the Kendo.Mvc.dll. There's an explanation on how to do this in the documentation located here
By default the the root kendo directory is installed at C:\Program Files (x86)\Telerik
回答2:
I had the same problem. The third point mentioned below solved the problem in my case.
1. Include the JavaScript and CSS files:
The ordering of scripts and css files is also very important. jQuery should be included before the KendoUI script file(s).
2. Add reference to Kendo.Mvc.dll:
Right-click the References node in Solution Explorer and click Add Reference.
Select the Browse tab of the Add Reference dialog and navigate to the install location of Telerik UI for ASP.NET MVC.
3. Update the web.config in Views folder:
Open Views/Web.config (or root Web.config if using ASPX).
Locate the namespaces tag.
Append an below add tag to the namespaces tag.
<add namespace="Kendo.Mvc.UI" />
回答3:
For me, it was _ViewImports.cshtml that I needed to edit
@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
@addTagHelper *, Kendo.Mvc
@using Kendo.Mvc.UI
Now with asp.net core 2.2 the razor page is resolving the @(Html.Kendo()...
回答4:
I just added the below line in razor page. Its working for me.
@using Kendo.Mvc.UI;
回答5:
When you created your project you had to have selected the right project type. There is the Telerik asp.net MVC application project type and the Kendo UI Asp.net MVC 5 project type. Picking the Kendo UI project type will provide you with the javascript kendo classes. This is for when you want to use Kendo through javascript, I had the same issue until I went back and chose the right project type. I spent a day and a half trying to add the .net class libraries because my razor wouldn't work. I think Visual studio was just confused about what I was trying to do and I probably was missing a .net class library.
回答6:
Regarding the addition of Kendo into existing ASP Core application, I did find that adding css and javascript (js) file references into my _Layout.cshtml anywhere other than before <environment> tags in the <head> caused an issue. I did eventually get this to work by adding the following:
<link href="https://kendo.cdn.telerik.com/2017.2.621/styles/kendo.common-material.min.css" rel="stylesheet" type="text/css" />
<link href="https://kendo.cdn.telerik.com/2017.2.621/styles/kendo.mobile.all.min.css" rel="stylesheet" type="text/css" />
<link href="https://kendo.cdn.telerik.com/2017.2.621/styles/kendo.material.min.css" rel="stylesheet" type="text/css" />
<script src="https://kendo.cdn.telerik.com/2017.2.621/js/jquery.min.js"></script>
<script src="https://kendo.cdn.telerik.com/2017.2.621/js/jszip.min.js"></script>
<script src="https://kendo.cdn.telerik.com/2017.2.621/js/kendo.all.min.js"></script>
<script src="https://kendo.cdn.telerik.com/2017.2.621/js/kendo.aspnetmvc.min.js"></script>
回答7:
Step1:
Add Kendo.Mvc.dll to references.
You can use the following NuGet gallery command.
Install-Package Kendo.Mvc -Version {yourversion}
Step2:
Add the js and css File of Kendo
<link href="@Url.Content("~/Content/kendo/2017.3.1018/kendo.common.min.css")" rel="stylesheet" type="text/css" />
<link href="@Url.Content("~/Content/kendo/2017.3.1018/kendo.mobile.all.min.css")" rel="stylesheet" type="text/css" />
<link href="@Url.Content("~/Content/kendo/2017.3.1018/kendo.dataviz.min.css")" rel="stylesheet" type="text/css" />
<link href="@Url.Content("~/Content/kendo/2017.3.1018/kendo.default.min.css")" rel="stylesheet" type="text/css" />
<link href="@Url.Content("~/Content/kendo/2017.3.1018/kendo.dataviz.default.min.css")" rel="stylesheet" type="text/css" />
<script src="@Url.Content("~/Scripts/kendo/2017.3.1018/jquery.min.js")"></script>
<script src="@Url.Content("~/Scripts/kendo/2017.3.1018/jszip.min.js")"></script>
<script src="@Url.Content("~/Scripts/kendo/2017.3.1018/kendo.all.min.js")"></script>
<script src="@Url.Content("~/Scripts/kendo/2017.3.1018/kendo.aspnetmvc.min.js")"></script>
<script src="@Url.Content("~/Scripts/kendo.modernizr.custom.js")"></script>
Step3: Add the Kendo.Mvc.UI namespace in web.config file.
note: if use the Area in Project you should add this code to web.config of Area.
<system.web>
<pages>
<namespaces>
<add namespace="Kendo.Mvc.UI" />
</namespaces>
</pages>
</system.web>
回答8:
However, I had the same problem but it was solved after the following steps:
1- Open tools ==> Extensions and updates
2- Tap on the "Online" tab on the left and search for telerik
3- Download and install "Telerik ASP.NET AJAX VSExtensions" & "Telerik ASP.NET MVC VSExtensions"
4- Close the Window
5- Go to "Telerik" tab
6- Tap on "Telerik UI for ASP.NET MVC"
7- Upgrade Wizard and upgrade
This solved the problem because of the conflict between Telerik versions between two stations. in addition to the fact that kendo is not included in the project if you installed VS after you do for Telerik.
回答9:
AddKendo.Mvc.dll through NugetPackage and
Add Kendo.Mvc
Add Namespace in webconfig file
<system.web>
<pages>
<namespaces>
<add namespace="Kendo.Mvc.UI" />
</namespaces>
</pages>
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