Hello,

On Chrome for Android, the dropdown menu appears offscreen. With Firefox for Android or Chrome desktop, it works well.
This sample reproduces the problem : https://runner.telerik.io/fullscreen/@kakone/azuPAHuy. If you click on the right item (user icon), the dropdown appears offscreen.

Bug report

The StringExtensions -> ToCamelCase method(part of Kendo.Mvc.Extenstions) doesn't return the expected Camel case result.

• More details in ticket # 1458202

Reproduction of the problem

Include the Kendo.Mvc.Extenstions namespace. Define the following in a controller:

        public IActionResult Index()
        {
            string test = "RANDOMStatusId";
            test = test.ToCamelCase();

            return View();
        }

Set a debugger and see the value of the "test" variable.

Current behavior

The returned from the ToCamelCase() method value is "rANDOMStatusId"

Expected/desired behavior

The expected result returned from the ToCamelCase() method value is "randomStatusId"

Environment

• Kendo UI version: 2020.1.219
• jQuery version: x.y
• Browser: [all]

Bug report

Validation attributes are not rendered on Kendo editors if ViewData contains same key as the model.

Reproduction of the problem

@{
  ViewData["Title"] = "Home Page"; 
}

@using (Html.BeginForm())
{
  @Html.Kendo().TextBoxFor(model => model.Title)
}

<script>
  $(function () {
    $("form").kendoValidator();
  });
</script>

Current behavior

Validation attributes are not rendered.

Expected/desired behavior

Validation attributes should be rendered on the input element.

Environment

• Kendo UI version: 2020.1.219
• Browser: [all]

The Menu TagHelper does not render correct links for its items when the asp-page attribute is used.

With area it does not render a link at all:
<menu-item text="Home" asp-area="Products" asp-controller="Home" asp-action="About"></menu-item>

Without area it renders an incorrect link
<menu-item text="Login" asp-area="Products" asp-page="/Books"></menu-item>

Bug report

The overlay is not removed when closing an Alert dialog, if there is an open Window with draggable.containment option set.

Reproduction of the problem

Dojo example.

1. Click the "Alert" button
2. Click "Ok" in the Alert dialog.

Current behavior

The overlay is not removed.

Expected/desired behavior

The overlay is removed.

Workaround: dojo.

Environment

• Kendo UI version: 2020.1.219
• jQuery version: x.y
• Browser: [all]

Bug report

DropDownTreeItemModel does not properly pass its HtmlAttributes members on populating DropDownTree with BindTo()

Reproduction of the problem

In .Net Core application, implement the following view:

@(Html.Kendo().DropDownTree()
    .Name("kendoTreeItems")
    .BindTo((IEnumerable<DropDownTreeItemModel>)ViewBag.Items)
)

and the following controller:

public IActionResult Index()
{
    ViewBag.Items = GetItems();
    return View();
}

public IEnumerable<DropDownTreeItemModel> GetItems()
{
    IDictionary<string, string> attributes = new Dictionary<string, string>
    {
        { "style", "background: red" }
    };

            List<DropDownTreeItemModel> items = new List<DropDownTreeItemModel>
    {
        new DropDownTreeItemModel { Text = "Item 1", HtmlAttributes = attributes },
        new DropDownTreeItemModel { Text = "Item 2", HtmlAttributes = attributes },
        new DropDownTreeItemModel { Text = "Item 3", HtmlAttributes = attributes },
        new DropDownTreeItemModel { Text = "Item 4", HtmlAttributes = attributes },
    };

    return items;
}

Current behavior

The HTML attributes will not be passed to the DropDownTree items.

Expected/desired behavior

The HTML attributes should be passed and present in the DropDownTree items.

Environment

• Kendo UI version: 2020.1.219
• Browser: [all]

### Bug report


### Reproduction of the problem
On the mobile version on Android 10, the Grid does not enter incell editing.

Dojo to reproduce: https://dojo.telerik.com/oDUBuKAt


### Environment

* **Kendo UI version:** 2020.1.219
* **Browser:** Android 10 Web Browser 

Bug report

The PDFViewer HTML helper incorrectly serializes the passed to its "File" configuration URL, when the URL has an ampersand(&) sign in it. In the output of the HTML helper, the ampersand is changed with its ASCII code - "\u0026"

• The issue is reproducible both in the UI for ASP.NET Core and UI for ASP.NET MVC suites.

Reproduction of the problem

1. Create an ASP.NET Core or MVC project
2. Paste the below code in it and run it
   @(Html.Kendo().PDFViewer() .Name("pdfviewer-test") .PdfjsProcessing(pdf => pdf .File("https://myrandomcomain.com/api/MyFolder/GetPDF?reference=xxxxxxxx&param1=0&param2=100&contentType=application/pdf") ) .Height(400) )
3. View the source of the opened page and see the generated Javascript code

Current behavior

The generated code is:
jQuery("#pdfviewer-test").kendoPDFViewer({"pdfjsProcessing":{"file":{"url":"https://myrandomcomain.com/api/MyFolder/GetPDF?reference=xxxxxxxx\u0026param1=0\u0026param2=100\u0026contentType=application/pdf"}},"height":400});

Expected/desired behavior

The expected result is
jQuery("#pdfviewer-test").kendoPDFViewer({"pdfjsProcessing":{"file":{"url":"https://myrandomcomain.com/api/MyFolder/GetPDF?reference=xxxxxxxx&param1=0&param2=100&contentType=application/pdf"}},"height":400});

Environment

• Kendo UI version: 2020.1.219
• jQuery version: x.y
• Browser: [all]

Bug report

Reproducible in Chrome and Firefox. Not reproducible in IE11.

Reproduction of the problem

Dojo example.
There are two Menus. In the first one navigation is triggered from the function passed to the "Sub Item 2" item's url option. In the second Menu navigation is triggered in the Menu's select event handler.

1. Hover "Item 2" and click "Sub Item 2"
   The wiki page will open in a new tab.
2. Check the Menu in the original tab with the dojo.

Current behavior

Doing this in the first Menu, results in the submenu remaining open.

Expected/desired behavior

The submenu should close in both scenarios, since closeOnClick is enabled by default and the select event fires before triggering the navigation.

Environment

• Kendo UI version: 2020.1.114
• jQuery version: x.y
• Browser: [Chrome XX | Firefox XX]

When a model property is decorated with data annotation attributes, the RadioButton HtmlHelper does not properly render the data-val and data-val-required attributes on the element.

Expected behavior:  Data attributes should be successfully rendered on the <input> element.

Bug report

When the data source of the grid is set to WebAPI, the Batch option is not available. 

Reproduction of the problem

1. Set the DataSource to WebAPI()

2. Attempt to enable the Batch(true) option.

Description

Reproducible only with the latest version of the suite - 2019.3.1023. The Batch option is available in the 2019.3.917 version.

Environment

* **Kendo UI version:** 2019.3.1023
* **jQuery version:** 1.12.4
* **Browser:** [all] 

Hello,

When I try to create a Telerik UI project for .NET Core 3.0 using menu and grid options the project gets created and runs correctly, however when I try to add a new view or controller there appears to be an issue with the scaffolding (even when creating a partial view) and the creation fails.

Note: I was able to get the project to sort of work only when I added a bunch of libraries it was complaining about (see attached), however the views do not update when I make changes except only when rebuilding which does not seem correct.

There is an issue when you copy /paste a bullet list from a Microsoft word document.

• The numbers are not correct (See attached screenshot)
• If you started a new line you don't get a new number for that hierarchical level. Instead, you just get a new line.

Bug report

The server filtering is not working for MultiColumnComboBox defined using a tag helper.

Reason: The initialization script returns:
..... kendo.ui.ComboBox.requestData(.....
instead of
..... kendo.ui.MultiColumnComboBox.requestData(.....

Reproduction of the problem

For reproduction details please refer to ticket: #1435798

Current behavior

The server filtering is not working and the server returns all items from the DataSource.

Expected/desired behavior

The server should filter the response based on the data coming from the view.

Environment

• Kendo UI version: 2019.3.1023
• jQuery version: x.y
• Browser: [all]

Hello,

We are subscribing to the change event of scheduler on clicking any event/Slot , the functionality works fine with window machines.

In iPad the change event gets triggered on clicking  any part of scheduler. for instance when i click the show Full day text below it triggers the change event in iPad but not in windows.

Please let us know how to restrict change event to be triggered only when a slot/event is selected in iPad.

Thanks.

We are upgraded from MVC 5 to MVC-Core and using now your core components (latest version).

In our AutoComplete box, we get now a NullReference exception, without changing anything at our codebase.

Generated Script from Kendo MVC-Core:

kendo.syncReady(function(){jQuery("#txtSearchForLink").kendoAutoComplete({"select":insertLink.searchResultSelected,"dataTextField":"Text","filter":"Contains","footerTemplate":jQuery('#searchResultFooterTemplate').html(),"minLength":0,"placeholder":"Suchen","template":jQuery('#searchResultTemplate').html(),"dataSource":{"type":"aspnetmvc-ajax","transport":{"read":{"url":"/Orphy/Search/GetQuickSearchData","data":insertLink.onAdditionalData}},"serverFiltering":true,"serverGrouping":true,"sort":[{"field":"Weight","dir":"desc"}],"group":[{"field":"GroupName","dir":"desc"}],"filter":[],"schema":{"data":"Data","model":{"id":"Id"}}}});});

Debugging:

-> context.Count == 0 -> so Null will returned
-> Here you access the property Memeber of Null ... ?

Call Stack:

System.NullReferenceException: Object reference not set to an instance of an object.
   at Kendo.Mvc.Infrastructure.Implementation.FilterNodeVisitor.Visit(PropertyNode propertyNode)
   at Kendo.Mvc.Infrastructure.Implementation.PropertyNode.Accept(IFilterNodeVisitor visitor)
   at Kendo.Mvc.Infrastructure.FilterDescriptorFactory.Create(String input)
   at Kendo.Mvc.UI.DataSourceRequestModelBinder.<>c__DisplayClass2_0.<CreateDataSourceRequest>b__3(String filter)
   at Kendo.Mvc.UI.DataSourceRequestModelBinder.TryGetValue[T](ModelMetadata modelMetadata, IValueProvider valueProvider, String modelName, String key, Action`1 action)
   at Kendo.Mvc.UI.DataSourceRequestModelBinder.CreateDataSourceRequest(ModelMetadata modelMetadata, IValueProvider valueProvider, String modelName)
   at Kendo.Mvc.UI.DataSourceRequestModelBinder.BindModelAsync(ModelBindingContext bindingContext)
   at Microsoft.AspNetCore.Mvc.ModelBinding.Binders.BinderTypeModelBinder.<BindModelAsync>d__2.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.ModelBinding.ParameterBinder.<BindModelAsync>d__11.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerBinderDelegateProvider.<>c__DisplayClass0_0.<<CreateBinderDelegate>g__Bind|0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeInnerFilterAsync>d__13.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.<InvokeNextExceptionFilterAsync>d__24.MoveNext() System.NullReferenceException: Object reference not set to an instance of an object.
   at Kendo.Mvc.Infrastructure.Implementation.FilterNodeVisitor.Visit(PropertyNode propertyNode)
   at Kendo.Mvc.Infrastructure.Implementation.PropertyNode.Accept(IFilterNodeVisitor visitor)
   at Kendo.Mvc.Infrastructure.FilterDescriptorFactory.Create(String input)
   at Kendo.Mvc.UI.DataSourceRequestModelBinder.<>c__DisplayClass2_0.<CreateDataSourceRequest>b__3(String filter)
   at Kendo.Mvc.UI.DataSourceRequestModelBinder.TryGetValue[T](ModelMetadata modelMetadata, IValueProvider valueProvider, String modelName, String key, Action`1 action)
   at Kendo.Mvc.UI.DataSourceRequestModelBinder.CreateDataSourceRequest(ModelMetadata modelMetadata, IValueProvider valueProvider, String modelName)
   at Kendo.Mvc.UI.DataSourceRequestModelBinder.BindModelAsync(ModelBindingContext bindingContext)
   at Microsoft.AspNetCore.Mvc.ModelBinding.Binders.BinderTypeModelBinder.<BindModelAsync>d__2.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.ModelBinding.ParameterBinder.<BindModelAsync>d__11.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerBinderDelegateProvider.<>c__DisplayClass0_0.<<CreateBinderDelegate>g__Bind|0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeInnerFilterAsync>d__13.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.<InvokeNextExceptionFilterAsync>d__24.MoveNext()

Thanks for helping me.

Cyril

Bug report

The data attributes are not rendered for the DropDownlist when bound to Model in Razor Pages.

Reproduction of the problem

View:

@page
@model TelerikAspNetCoreApp12.Pages.IndexModel

<form>
    @(Html.Kendo().DropDownList()
            .Name("fabric")
            .OptionLabel("Select...")
            .DataTextField("Text")
            .DataValueField("Value")
            .BindTo(Model.Data)
            .Filter("contains")
    )
    <input type="submit" />
</form>

Back end:

namespace TelerikAspNetCoreApp12.Pages
{
    public class IndexModel : Microsoft.AspNetCore.Mvc.RazorPages.PageModel
    {
        public List<TestModel> Data { get; set; } = new List<TestModel>();

        public void OnGet()
        {
            for (int i = 1; i <= 100; i++)
            {
                Data.Add(new TestModel() { Text = "product" + i, Value = i.ToString() });
            }
        }
    }
}

Model:

namespace TelerikAspNetCoreApp12.Models
{
    public class TestModel
    {
        [Required(ErrorMessage = "Please select")]

        public string Text { get; set; }

        public string Value { get; set; }
    }
}

Inspect the input field for the DropDownList. It does not have data-val and data-val-required attributes.

Current behavior

The data attributes are not being rendered.

Expected/desired behavior

The data attributes should be rendered.

Environment

• Kendo UI version: 2019.2.619
• jQuery version: x.y
• Browser: [all]

Bug report

The Kendo UI Sortable for ASP.NET Core assumes that all selectors are by "id".

Reproduction of the problem

1. Set the .For() option of the Sortable widget to a class selector:

@(Html.Kendo().Sortable()
    .For(".k-grid table")
    // . . . 
)

2. Inspect the page source.

3. The following string is rendered:

<script>
    kendo.syncReady(function () { jQuery("\\.k-grid table").kendoSortable(// options) });
</script>

Expected/desired behavior

The Sortable widget should allow for passing any jQuery selectors.

Environment

* **Kendo UI version:** 2019.3.1023
* **jQuery version:** 1.12.4
* **Browser:** [all] 

Hi!

We're using a drop down list as a grid cell's edit template, but.. our users are unable to properly edit the rows at the bottom of the grid due to drop down list going off the page, and closing when they attempt to scroll.

any ideas?