### Bug report

The attributes set through the "HtmlAttributes", "ContentHtmlAttributes", and "LinkHtmlAttributes"methods are not applied to the TreeView items.

### Reproduction of the problem

1. Create a TreeView and set attributes by using the "HtmlAttributes", "ContentHtmlAttributes", "LinkHtmlAttributes"methods:

@(Html.Kendo().TreeView()
    .Name("treeview-kendo2")
    .Items(treeview =>
    {
        treeview.Add().Text("My Documents")
        .SpriteCssClasses("k-icon k-i-globe")
        .Expanded(true)
        .Url("/")
        .HtmlAttributes(new { @class = "fairydust1" })
        .ContentHtmlAttributes(new { data_navigate = "navigate_content", @class = "trigger", title = "content_title" })
        .LinkHtmlAttributes(new { data_navigate = "navigate_link", @class = "trigger", title = "content_link" });
    })
)

2. Run the page and inspect the TreeView item.

### Expected/desired behavior

The attributes are serialized and rendered.

### Environment

* **Kendo UI version: 2021.2.616
* **jQuery version: 1.12.4
* **Browser: [all]

### Bug report

When adding custom attributes to the CheckBox Taghelper, they are not added to the input element.

### Reproduction of the problem

1. Define a CheckBox Taghelper and add 'data-bind="checked: Test"' to its tag:

<kendo-checkbox name="Name" data-bind="checked: Test"></kendo-checkbox>

2. Inspect the CheckBox element and you will see that the "data-bind" attribute is missing.

3. When using the HtmlHelper version of the CheckBox, the attributes added through the HtmlAttributes() option are added as expected.

A REPL sample for reproduction: https://netcorerepl.telerik.com/mIuZlRle01kh6Ly043

### Expected/desired behavior

The specified attributes must be added to the input element of the CheckBox Taghelper.

### Environment

* **Telerik UI for ASP.NET Core version: 2024.2.514
* **Browser: [all]

Bug report

Reproduction of the problem

Open this dojo example: https://dojo.telerik.com/BzNkZgSf

1. Run the example
2. Click the Insert Hyperlink tool in the Editor
3. When the hyperlink dialog appears, hover the inputs in the dialog

Current behavior

The input tooltip shows:

k-editor-link-url

because the input's title attribute is set like this: title="k-editor-link-url"

Expected/desired behavior

Instead of the name of a class, the tooltip should show "Web address", "Text", or "ToolTip" respectively.

Environment

• Kendo UI version: 2022.3.806
• jQuery version: x.y
• Browser: [all]

### Bug report

The label configuration is not available for the plotband when using the TagHelper version of the Bar Chart.

### Reproduction of the problem

1. Open the following REPL sample: https://netcorerepl.telerik.com/woEMFDll17ui7F4122

2. The label of the plotband is not available.

3. The label option is available when defining the Chart by using HtmlHelpers: https://netcorerepl.telerik.com/QSYMvNFP187x0nAl24

### Expected/desired behavior

The plotband must have a label option.

### Environment

* **Telerik UI for ASP.NET Core version: 2024.3.806
* **Browser: [all]

Bug report

Grid Hidden Column is set as exportable by default for Pdf and Excel

Reproduction of the problem

1. Set a Column as hidden through the Hidden() API configuration.
2. Add both the ToolBar.Excel() and ToolBar.Pdf() API configurations.
3. Notice, that the hidden column is exported.

Current behavior

The Grid Hidden Column should be set as exportable by default for Pdf and Excel.

Expected/desired behavior

The Grid Hidden Column should not be set as exportable by default for Pdf and Excel.

Environment

• Kendo UI version: 2024.3.806
• Browser: [all]

Bug report

The issue is reproducible when the TimePicker's dates configuration is set and its min() API method is called. Afterwards, if the user select a time, the component shows the wrong time (2h earlier) as selected.

Reproduction of the problem

1. Run this dojo example: https://dojo.telerik.com/IPUlOkeW
2. Select an item in the picker's dropdown

Current behavior

The TimePicker shows a selected value that is 2h earlier than the actual time the user has selected.

Expected/desired behavior

The time the user selects is shown as selected value.

Environment

• Kendo UI version: 2024.2.514
• jQuery version: x.y
• Browser: [all]

Bug report

Toolbar.Items.Group.CustomTool() API of the Scheduler produces an invalid configuration.

Reproduction of the problem

1. Open the following Telerik REPL.
2. Try to add a Template component via the Toolbar.Custom.Items.Group.CustomTool() API configuration.
3. Notice that the configuration produces invalid serialization.

To give more context, the Toolbar's buttonGroup items do not expose, nor should they expose a template configuration. The currently available options advocate that each of the buttons must apply options similar to that of the ToggleButton.

Thus, making the wrapper configuration not applicable. The following dojo verifies this - https://dojo.telerik.com/@alexander64836/ayedUsAh

Current behavior

Toolbar.Custom.Items.Group.CustomTool() API configuration of the Scheduler produces an invalid configuration which is not serialized accordingly.

Expected/desired behavior

Toolbar.Items.Group API configuration of the Scheduler should expose a CustomTool() API configuration for the ButtonGroups.

Workaround

The current workaround would be to declare the CustomTool via the Toolbar.Custom.Items.CustomTool() API configuration. And a ButtonGroup via the Template component:

@(Html.Kendo().Scheduler<Kendo.Mvc.Examples.Models.Scheduler.TaskViewModel>()
     .Name("scheduler")
     ...
     .Toolbar(t => t.Custom(c =>
         c.Items(itm => {
             itm.CustomTool(Html.Kendo().Template().AddComponent(c => c
                .ButtonGroup()
                 .Name("select-period")
                 .Items(t =>
                 {
                     t.Add().Text(string.Empty).Icon("chevron-up");
                     t.Add().Text(string.Empty).Icon("chevron-down");
                 })
             ));  
          })
       )
     )
)

The following Telerik REPL illustrates this approach.

Environment

• Kendo UI version: 2023.2.514
• Browser: [all]

Overview

At this stage, the ToolBar.Custom() API configuration does not expose built-in configurations for adding a handler and partial view. E.g:

        @(Html.Kendo().Grid <TelerikAspNetCoreApp455.Models.OrderViewModel>()
            .Name("grid")
            .ToolBar(toolbar => {
                toolbar.Custom().Name("Test1").ClientTemplateHandler("someHandler");
                toolbar.Custom().Name("Test2").ClientTemplateView(Html.Partial("_Test2"))
            })
            ...
        )

Current behavior

The ToolBar.Custom() API configuration does not expose built-in configurations for adding a handler and partial view.

Expected/desired behavior

The ToolBar.Custom() API configuration should expose built-in configurations for adding a handler and partial view.

Environment

• Kendo UI version: 2024.3.806
• Browser: [all]

Note: I already opened issue #7910 in the kendo-ui-core repo for this but wasn't sure if I should report this through the Feedback Portal.

The TextArea TagHelper does not render the "maxlength" attribute when set via data annotations.

Note: this is essentially the same issue from #6884 but applies to the TextArea helper (and not the TextBox helper), so perhaps the fix for that issue just needs to be applied to the TextArea helper (it's always that easy, right? 😉).

Given the following model property:

[StringLength(500)]
[DisplayName("Example")]
public string Example { get; set; }

The Kendo TextArea helper: 

<kendo-textarea for="Example" rows="3"></kendo-textarea>

...generates code without the "maxlength" attribute:

<textarea
   data-val="true"
   data-val-length="The field Example must be a string with a maximum length of 500."
   data-val-length-max="500"
   id="Example"
   name="Example"
   data-role="textarea"
   aria-disabled="false"
   rows="3"
   class="!k-overflow-auto !k-flex-none k-input-inner"
   autocomplete="off">
</textarea>

The default ASP.NET Core TextArea helper:

<textarea asp-for="Example" rows="3"></textarea>

...generates code with the "maxlength" attribute:

<textarea
   rows="3"
   data-val="true"
   data-val-length="The field Example must be a string with a maximum length of 500."
   data-val-length-max="500"
   id="Example"
   maxlength="500"
   name="Example">
</textarea>

The Kendo helper should generate the "maxlength" attribute like the built-in helper.

### Bug report

The ExpandAll() option does not expand or collapse the TreeView nodes.

### Reproduction of the problem

1. Enable or disable the ExpandAll() option.

2. The nodes are not expanded/collapsed when the TreeView is initialized.

A REPL sample for reproduction: https://netcorerepl.telerik.com/mSuMEPkZ10ZA6l8P00

### Expected/desired behavior

All nodes must be initially expanded when ExpandAll(true) is set.

### Environment

* **Telerik UI for ASP.NET Core version: 2024.2.514
* **Browser: [all]

Bug report

At this stage, the Telerik UI for ASP.NET Core Notification allows setting arbitrary templates via the NotificationTemplateTagHelper. Despite the API documentation implying that the TagHelper can be nested, the following configuration:

<kendo-notification name="notifications" stacking="NotificationStackingSettings.Down" auto-hide-after="2500">
    ...
    <templates>
        <notification-template type="error">
            <notification-template>
                <p>Some Template</p>
            </notification-template>
        </notification-template>
    </templates>
</kendo-notification>

It does not successfully serialize the Template TagHelper.

Reproduction of the problem

1. Open the following Telerik REPL
2. Notice that the template for the success type is not serialized.

Current behavior

The NotificationTemplateTagHelper does not serialize successfully the TemplateTagHelper.

Expected/desired behavior

The NotificationTemplateTagHelper should successfully serialize the TemplateTagHelper.

Environment

• Kendo UI version: 2024.3.806
• Browser: [all]

Overview

Currently, the Telerik UI for ASP.NET Core DataSource does not expose a Deferred() API configuration. In comparison to its Telerik UI for ASP.NET MVC counterpart.

It would be beneficial to expose the ability to defer the component in the following manner:

@(Html.Kendo().DataSource<TelerikMvcApp119.Models.OrderViewModel>()
    .Name("ds")
    .Ajax(dataSource => dataSource
		.Read(read => read.Action("AssetType_Read", "AssetTypes"))
	)
    .Deferred()
)

It will also enable users to employ CSP using a granular deferred initialization into a separate script tag. Annotated with the nonce attribute

Current behavior

The Telerik UI for ASP.NET Core DataSource does not expose a built-in configuration for deferring the DataSource.

Expected/desired behavior

The Telerik UI for ASP.NET Core DataSource should expose a built-in configuration for deferring the DataSource.

Environment

• Kendo UI version: 2024.2.514
• Browser: [all]

Bug report

A specific PDF file (example can be found in ticket : 1493640) shows upside down in DPL case

Reproduction of the problem

Run the DPL processing demo locally and replace the file with the one provided in the ticket

Current behavior

The file is shown upside down

Expected/desired behavior

The file should not be rendered upside down

Environment

• Kendo UI version: 2020.3.1021

Bug report

Reproducible with the Grid's tag helper. Works as expected in the Html helper.

Reproduction of the problem

1. Run this example: https://netcorerepl.telerik.com/QSuBQmlo123kvYQt54

Current behavior

The toolbar does not show the RadioGroup.

Expected/desired behavior

A RadioGroup should appear in the toolbar, as set in the toolbar command template:

<toolbar-command-template>
    <kendo-radiogroup name="test">
        <kendo-radiogroup-items>
            <kendo-radiogroup-item label="Factor" value="F"></kendo-radiogroup-item>
            <kendo-radiogroup-item label="Equation" value="E"></kendo-radiogroup-item>
        </kendo-radiogroup-items>
    </kendo-radiogroup>
</toolbar-command-template>

Environment

• Kendo UI version: 2024.2.514
• jQuery version: x.y
• Browser: [all ]

### Bug report

Adding the [Authorize(Roles = "Admin, User")] attribute at Controller or Actions within the Controller does not show the Menu items.

### Reproduction of the problem

1. Create an application with authorization and add "Admin" and "User" roles.

2. Add the [Authorize(Roles = "Admin, User")] attribute to a specified Action method within the Controller:

public class HomeController : Controller
{
        public IActionResult Index()
        {
            return View();
        }

        [Authorize(Roles = "Admin, User")]
        public IActionResult Security_Information()
        {
            return View();
        }
}

3. Add a Menu:

    @(Html.Kendo().Menu()
        .Name("htmlhelperMenu")
        .SecurityTrimming(true)
        .Items(menu =>
        {
            menu.Add().Text("Home").Action("Index", "Home");
            menu.Add().Text("Security Information").Action("Security_Information", "Home");
        })
    )

    <kendo-menu name="taghelperMenu">
        <items>
            <menu-item text="View Inventory">
                <sub-items>
                    <menu-item text="Home" asp-controller="Home" asp-action="Index"></menu-item>
                    <menu-item text="Security Information" asp-controller="Home" asp-action="Security_Information"></menu-item>
                </sub-items>
            </menu-item>
        </items>
    </kendo-menu>

3. The "Security Information" Menu item is not visible when the user is logged as "Admin" or as "User".

### Expected/desired behavior

The "Security Information" Menu item should be visible when the [Authorize(Roles = "Admin, User")] attribute is added to the respective Action/Controller and the user is logged as "Admin" or as "User".


### Environment

* **Telerik UI for ASP.NET Core version: 2023.2.606
* **Browser: [all]

Bug report

DropDownTreeFor with checkboxes enabled is not binding to model value after postback.

Reproduction of the problem

Use the following definition of a DropDownTreeFor HtmlHelper in a plain HTML form, where MySelectedIds is int[]:

 @(Html.Kendo().DropDownTreeFor(m => m.MyClass.MySelectedIds)
             .Checkboxes(checkboxes => checkboxes
                 .CheckChildren(false)
             )
             .DataTextField("MyText")
             .DataValueField("MyId")
             .AutoClose(false)
             .CheckAll(true)
             .DataSource(dataSource => dataSource
                 .Custom()
                 .Transport(t => t
                     .Read(r => r.Url("/api/items"))
                 )
             )
 )

Current behavior

The DropDownTree is bound to the model value on page load, but on successful form submission and returning the model the DropDownTree is not bound to the data. Refer to ticket 1648108 for a runnable example.

Expected/desired behavior

The DropDownTree should be bound to the model value after successful form submission.

Workaround

Bind the model to a string[] instead of int[].

Environment

• Kendo UI version: 2024.1.319

### Bug report

The DropDownTree TagHelper with enabled checkboxes does not submit the selected options when it is bound to a Model property.

### Reproduction of the problem

1. Define a DropDownTree TagHelper as a form editor and and enable its checkboxes.

2. Bind the editor to a Model property (an array of integers).

3. Submit the form and examine the submit request payload. The values of the selected items are missing.

//Model
public class TestFormModelClass
{
  public int[] MonthsSelectedIds { get; set; }
}

//View
@model TestFormModelClass

<form method="post">
  <kendo-dropdowntree for="MonthsSelectedIds" 
      check-all="true"
      datatextfield="Month"
      datavaluefield="Id">
      <hierarchical-datasource type="DataSourceTagHelperType.Custom">
                <schema>
                    <hierarchical-model id="id"></hierarchical-model>
                </schema>
                <transport>
                    <read url="/api/items" />
                </transport>
      </hierarchical-datasource>
      <checkboxes check-children="false" name="CheckedMonths" enabled="true" />
  </kendo-dropdowntree>

  <button type="submit">Save</button>
</form>

### Expected/desired behavior

When the DropDownTree TagHelper with checkboxes is used as a form editor, the values of the selected items must be submitted as expected to the server.

### Workaround

Use the HtmlHelper version of the DropDownTree

### Environment

* **Telerik UI for ASP.NET Core version: 2024.1.319
* **Browser: [all]

Bug report

Setting the Reoderable.Rows.ClickMoveClick() API configuration explicitly to false results in an error when using the HTML Helper wrappers.

Reproduction of the problem

1. Open the following Telerik REPL.
2. Set the Reoderable.Rows.ClickMoveClick() to false.
3. Notice the thrown client-side error.

Current behavior

Setting the Reoderable.Rows.ClickMoveClick() explicitly to false throws the following error:

Expected/desired behavior

Setting the Reoderable.Rows.ClickMoveClick() explicitly to false should not throw an error.

Environment

• Kendo UI version: 2024.2.514
• Browser: [all]