Bug report

The DataSource's property groupPaging: true prevents the Grid's group from expanding if it has a defined groupHeaderColumnTemplate.

Reproduction of the problem

1. Open this Dojo
2. Try to expand the Grid's groups

Also reproducible in the Core wrapper where an error is thrown: kendo.all.js:8743 Uncaught TypeError: Cannot read property 'hasSubgroups' of undefined

Current behavior

groupPaging is not compatible with the groupHeaderColumnTemplate

Expected/desired behavior

groupPaging and the groupHeaderColumnTemplate should be compatible

Environment

• Kendo UI version: 2021.2.616

• Browser: [all]

Bug report

When a Telerik UI Window is draggable and has its Position set, the first time the widget can be dragged, or it is being dispositioned while dragging.

Reproduction of the problem

1. Create a Telerik Window widget.

2. Set the Position.Left and Position.Top

3. Open and drag the window.

Expected/desired behavior

The window should be smoothly draggable.

Environment

* **Kendo UI version:** 2021.2.511
* **jQuery version:** 1.12.4
* **Browser:** [all]

IgnoreCase property is missing for the filterable options of the column:

https://docs.telerik.com/aspnet-core/api/Kendo.Mvc.UI.Fluent/GridBoundColumnFilterableBuilder

The option is documented in:

https://docs.telerik.com/kendo-ui/api/javascript/ui/grid/configuration/columns.filterable.ignorecase

If there is a text binding to the item that has a script tag injected, the Core component will break its initialization instead of encoding it as it is done for the Telerik UI for ASP.NET MVC DropDownList helper.

        @(Html.Kendo().DropDownList()
            .Name("DDL")
            .HtmlAttributes(new { style = "width:100%" })
            .OptionLabel("Select...")
            .DataTextField("text")
            .DataValueField("value")
            .Height(310)
            .BindTo(new List<object> {
                new { text = "Test", value = 0 },
                new { text = "<script>alert(123)</script>", value = 0 }
            })
        )

Result:

Bug report

TextArea wrapper does not render correctly in v2021.1.224

Reproduction of the problem

Declare a Html.Kendo().TextArea() in ASP.NET project

Current behavior
The TextArea value does not retain.

Expected/desired behavior
TexArea shall render as in previous Kendo Ui versions

Related to Ticket #1509117
Environment
Kendo UI version: 2021.1.224
Browser: [all]

Bug report

Starting from version 2022.1.119 when the type of the button is set to 'submit' it still remains to 'button' which prevents submission of forms on click.

Reproduction of the problem

1. Run this REPL
2. Click the buttons

Expected/desired behavior

Type property should correctly set the button's type to 'submit'

Environment

• Kendo UI version: 2022.1.119
• Browser: [all]

Bug report

The Kendo UI Grid's pager for UI for ASP.NET Core does not have an "All" option and it can't be configured in the Razor syntax.

Current behavior

Using the Kendo UI Grid's pageable.PageSizes, the ALL option is not available for UI for ASP.NET Core as it's only an Int32[].

Expected/desired behavior

The All option should be included like in the UI for ASP.NET MVC Razor Syntax.

Environment

• Kendo UI version: 2020.3.915
• Browser: all

### Bug report

When the Grid group paging is enabled, and the Grid is grouped, when the user search through the built-in search panel, and expand a specified group, an infinite loop appears. The Grid sends Read requests, and the server returns empty "data" property.

### Reproduction of the problem

1) Create a Grid bound to remote data and enable the group paging feature.

2) Group the Grid by a specified column.

3) Enter a value in the Grid search panel (the grouped data is filtered).

4) Expand a specified group --> it causes an infinite loop.

5) Open the browser Network tab to review the Read requests.

A Dojo sample for reproduction: https://dojo.telerik.com/EsuQoQiP

### Expected/desired behavior

The grouped Grid data should be filtered through the search panel as expected.

### Environment

* **Kendo UI version: 2023.1.117
* **jQuery version: 1.12.4
* **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

MultiSelect configured for server-filtering="true" sends an empty request on focusout

     <kendo-multiselect for="SelectedOrderIds" style="width:100%"
                       placeholder="Select addresses..."
                       datatextfield="ShipName"
                       datavaluefield="OrderID"
                       filter="FilterType.Contains"
                       value="Model.SelectedOrders.Select(x=>x.OrderID)">
        <datasource type="DataSourceTagHelperType.Ajax" server-filtering="true">
            <transport>
                <read url="@Url.Page("Index", "Read")" data="forgeryToken" />
            </transport>
            <schema data="Data">
                <model id="OrderID">
                    <fields>
                        <field name="ShipName" type="string"></field>
                    </fields>
                </model>              
            </schema>
        </datasource>
    </kendo-multiselect>

Reproduction of the problem

TelerikAspNetCoreApp197.zip

1. Run the attached application
2. Enter 34, for example, and select the returned item
3. Click outside of the MultiSelect

Current behavior

An empty request is sent, fetching all data.

Expected/desired behavior

A request should not be sent.

Environment

• Kendo UI version: 2021.1.330
• Browser: [all]

### Bug report

When a specified gird column has a property '.EditorTemplateName("Date")', the default DatePicker editor is not rendered properly.

### Reproduction of the problem

1. Create a new Telerik ASP.NET Core MVC Application by using the "Create New Project Wizard". Use the "Grid and Menu" Template;

2. Make the Grid "InLine" editable;

3. Set the property '.EditorTemplateName("Date")' to the "OrderDate" grid column;

4. Run the application and try to edit an existing record. The DatePicker editor is not displayed as expected.

Attached is a runnable sample for reproduction.

### Expected/desired behavior

The closing bracket in the DatePicker configuration should be moved at the end:

//Current configuration
@model DateTime?

@(Html.Kendo().DatePickerFor(m => m)).HtmlAttributes(new { title = Html.ViewContext.ViewData.TemplateInfo.GetFullHtmlFieldName("")})

//Updated configuration
@model DateTime?

@(Html.Kendo().DatePickerFor(m => m).HtmlAttributes(new { title = Html.ViewContext.ViewData.TemplateInfo.GetFullHtmlFieldName("")}))

### Environment

* **Kendo UI version: 2022.1.301
* **jQuery version: 1.12.4
* **Browser: [all]

Bug report

When a hidden column of the Grid is configured as .Exportable(true) in the wrappers the exportable property doesn't get serialized

Reproduction of the problem

1. Use the following configuration
   columns.Bound(p => p.OrderID).Exportable(export=>export.Excel(true)).Hidden().Filterable(false);
2. Inspect the client-side script of the Grid

Expected/desired behavior

Setting the Exportable(true) on a hidden column should correctly include it in the export

TicketID:

1559232

Environment

• Kendo UI version: 2022.1.301
• Browser: [all]

Bug report

When tabbing in a batch editable Grid cells do not enter edit mode.
This is a regression introduced with v 2023.2.606.

Reproduction of the problem

1. Run this dojo
2. Click on a cell in Product Name column - an editor is generated
3. Press the Tab key

Current behavior

The corresponding Unit Price is focused, but an editor is not generated

Expected/desired behavior

The cell should enter edit mode, as with v2023.1.425 - dojo

Environment

• Kendo UI version: 2023.2.606
• Browser: [all]

Bug report

The AM/PM mask of the DataTimePicker is editable.

The behavior might be related to the introduction of the common DateInput package in the DatePickers.

Reproduction of the problem

1. Run the DateTimePicker Demo
2. Select a date in the DateTimePicker
3. Select and delete the AM mask of the selected value

Current behavior

The AM mask gets deleted and is replaced by the default AM/PM

Expected/desired behavior

The AM mask should be non-editable as it isn't part of the value of the Widget.

Environment

• Kendo UI version: 2023.2.802
• Browser: [all]

Bug report

When importing a xlsx file containing custom data validation and the "@" symbol a JavaScript error is thrown.

Reproduction of the problem

Import the this sample file that contains the custom validation formula =ISNUMBER(MATCH("*@*",A1,0)) in the Server Import/Export Demo. The following error is thrown and logged on the developer's console:
Can't handle character with code: 64 (input: \"ISNUMBER(MATCH(\"*@*\",A1,0))\")"

Opening the file with the built-in open command works as expected as well as hardcoding the formula - REPL

Expected/desired behavior

Importing a xlsx file containing custom data validation and the "@" symbol should not throw a JavaScript error.

Environment

• Kendo UI version: 2021.3.1109
• Browser: [all]

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

When Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation NuGet package is installed in Telerik UI for ASP.NET Core application, it throws an exception:

FileNotFoundException: Could not load file or assembly 'Microsoft.DotNet.InternalAbstractions, Version=1.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'. The system cannot find the file specified.

### Reproduction of the problem

1. Create Telerik UI for ASP.NET Core MVC application (.NET Core version 6.0).

2. Install Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation NuGet package (version 6.0.5).

3. Turn on the Razor Runtime Compilation:

//Program.cs file

// Add services to the container.
builder.Services.AddControllersWithViews()
                .AddNewtonsoftJson(options => options.SerializerSettings.ContractResolver = new Newtonsoft.Json.Serialization.DefaultContractResolver())
                .AddRazorRuntimeCompilation();

4. Run the application and review the exception.

Attached is a runnable sample for reproduction.

### Workaround

Install Microsoft.DotNet.InternalAbstractions NuGet package (version: 1.0.0)

### Environment

* **Kendo UI version: 2022.2.510
* **jQuery version: 1.12.4
* **Browser: [all]

Bug report

When the hoverDelay of the Menu widget is enabled the items of the Menu do not collapse properly after their initial expand.

Reproduction of the problem

1. Run this Dojo
2. Hover fast over multiple items
   or
3. Run the TagHelper Demo
4. Hover fast over the Using model binding Menu's items

Behavior occurs only on first expand of the items.
If the behavior isn't reproducible at initially refresh the page and try again.

Expected behavior

Menu Items that aren't currently hovered over should collapse.

Current behavior

Menu Items remain expanded.

Environment

• Kendo UI version: 2023.2.606

Bug report

DropDownTree is not serialized correctly when declared in the Template component.

Reproduction of the problem

1. Open the following Telerik REPL.
2. Notice that the DropDowntTree component declared in the Template for the CustomerRating field is not serialized with its options correctly.

Current behavior

The DropDownTree is not serialized correctly when declared in the Template component.

Expected/desired behavior

The DropDownTree is not serialized correctly when declared in the Template component.

Environment

• Kendo UI version: 2023.1.1114
• Browser: [all]

Bug report

When using the TaxtBoxFor HTML helper and the MaxLength is set via DataAnnotation the maxlength attribute is not rendered.

Reproduction of the problem

Model:

public class MyModel
{
    [MaxLength(5)]
    public string Text { get; set; }
}

View:

@Html.Kendo().TextBoxFor(m => m.Text)

Current behavior

The Telerik UI for ASP.NET Core HTML Helper renders the following markup, without the maxlength attribute:

<span class="k-widget k-textbox" style="">
    <input data-val="true" data-val-maxlength="The field Text must be a string or array type with a maximum length of '5'." data-val-maxlength-max="5" id="Text" name="Text" value="" data-role="textbox" aria-disabled="false" class="k-input" autocomplete="off" style="width: 100%;">
</span>

The default Html.TextBoxFor helper renders the following markup, containing the maxlength attribute:

<input data-val="true" data-val-maxlength="The field Text must be a string or array type with a maximum length of '5'." data-val-maxlength-max="5" id="Text" maxlength="5" name="Text" type="text" value="">

Expected/desired behavior

The Telerik UI for ASP.NET Core HTML Helper should render the maxlength attribute.

Environment

• Kendo UI version: 2021.3.914
• Browser: [all]