### Bug report

When the Grid uses an external DataSource, the aggregates are undefined within the ClientGroupFooterTemplate().

### Reproduction of the problem

Use the following REPL sample that demonstrates the issue:

https://netcorerepl.telerik.com/mIkyQnvB382bsiFt24

1. Group the Grid by the "Freight" column.

2. An error is thrown in the browser console: "Uncaught ReferenceError: sum is not defined".

3. The aggregates=["sum"] is missing in the column options in the Grid initialization script;

"columns":[{"title":"Order ID","field":"OrderID","filterable":false,"encoded":true},{"title":"Freight","groupFooterTemplate":"Sum: #=sum#","field":"Freight","filterable":{"messages":{"title":"Show items with value that"},"checkAll":false},"encoded":true},{"title":"Ship City","width":"150px","field":"ShipCity","filterable":{"messages":{"title":"Show items with value that"},"checkAll":false},"encoded":true}]

When the DataSource is defined within the Grid configuration, the aggregate is displayed as expected.

### Expected/desired behavior

The "sum" aggregate must be displayed within the group footer template of the column when the Grid is grouped.

### Workaround

Define the DataSource in the Grid configuration or update the Grid settings by using the setOptions() method when the page is loaded:

<script>
    $(document).ready(function () {
        var grid = $("#grid").data("kendoGrid");
        if (grid) {
            let gridColumns = grid.columns;
            if (!gridColumns[1].aggregates) { // update [1] with the index of the column that has a group footer template. For example, "1" is the 2nd Grid column
                gridColumns[1].aggregates = ["sum"];
                grid.setOptions({ columns: gridColumns });
            }
        }
    });
</script>

### Environment

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

Bug report

The issue is related to the specific selectors used in the filter option. The linked example contains 3 different selectors, with all of which the problematic behavior is exhibited.

Reproduction of the problem

1. Run this dojo example: https://dojo.telerik.com/aTOHaDUg/5
2. Hover one of the span elements that matches the Tooltip filter
3. Move the mouse cursor outside the hovered span.

Current behavior

The Tooltip does not hide automatically, unless you move the mouse cursor directly down from the hovered span.

Expected/desired behavior

The Tooltip hides automatically once you exit the boundaries of the hovered element, regardless of the cursor move direction.

Environment

• Kendo UI version: 2024.1.319
• jQuery version: x.y
• Browser: [all ]

Bug report

Using the PDFViewer with the latest version of PDF.js (3.9.179) throws js exceptions. Version 3.4.120 is the last one, with which no js exception is thrown.

Reproduction of the problem

Dojo example: https://dojo.telerik.com/IHedIhur/3

1. Open the devtools consolve and run the example.

Current behavior

The file is loaded, however, js exceptions are thrown:

The --scale-factor CSS-variable must be set, to the same value as viewport.scale, either on the container-element itself or higher up in the DOM. text_layer.js:480:14

Expected/desired behavior

No js exceptions when using PDF.js versions newer than v3.4.120.

Environment

• Kendo UI version: 2023.2.718
• jQuery version: x.y
• Browser: [all]

Bug report

When a modal Dialog is open, if we open a modal Window and then attempt to close it, a js exception is thrown. This is a regression introduced in version 2024.1.319.

Reproduction of the problem

Run the following dojo example: https://dojo.telerik.com/IrEWEHAZ

1. Click the "Open Nested Window" button.
2. After the Window opens, try to close it by clicking its "x" button.

Current behavior

A js exception is thrown:
Uncaught TypeError: this._object(...)._overlay is not a function
The issue is related to the modal option being enabled in both the Dialog and the Window. Disabling this option in one of them, prevents the exception.

Expected/desired behavior

The Window closes without exceptions.

Environment

• Kendo UI version: 2024.1.319
• jQuery version: x.y
• Browser: [all]

### Bug report

The legend items cannot be configured in the SeriesDefaults() configuration of the Pie Chart.

### Reproduction of the problem

1) Create a Pie Chart with a visible legend.

2) Add the SeriesDefaults() configuration and try to add the LegendItem() option to set the type of the legend items.

.SeriesDefaults(seriesDefaults =>
{
    seriesDefaults
            .Pie();
            .LegendItem(x => x
                .Type("line")
                .Line(y => y.DashType(ChartDashType.Solid)));
})

The Legenditem() option is available for Telerik UI for ASP.NET Core Pie Chart.

### Expected/desired behavior

The legend items of the Pie Chart must be configurable through the SeriesDefaults() option.

### Environment

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

Bug report

Reproduction of the problem

1. Initialize a PDFViewer and add a button that calls a controller action on click.

<div id="pdfViewer">
</div>

<script type="text/javascript">
    $("#pdfViewer").kendoPDFViewer({
        pdfjsProcessing: {
            file: ""
        }
    });

    function loadFile() {
        $("#pdfViewer").data("kendoPDFViewer").fromFile("@Url.Action("GetPDF", "Home")");
    }
</script>

2. Implement an action that returns a .pdf file or occasionally returns HttpNotFoundResult:

public ActionResult GetPDF()
{

    var name = "sample.pdf";
    string path = Server.MapPath("/Content/pdf/sample.pdf");

    //generate a random boolean:
    Random rng = new Random();
    bool randomBool = rng.Next(0, 2) > 0;
            
    if (randomBool)
    {
        byte[] fileBytes = System.IO.File.ReadAllBytes(path);
        return File(fileBytes, System.Net.Mime.MediaTypeNames.Application.Octet, name);
    }
    else
    {
        return new HttpNotFoundResult("File not found.");
    }
}

Current behavior

In the case where the request returns HttpNotFoundResult, a number of js errors are thrown:

util.js:417 Uncaught (in promise)

The user loses the ability to load a file, because subsequent attempts to load a file by clicking the button result in another js exception:

api.js:1114 Uncaught TypeError: Cannot read properties of null (reading 'sendWithStream')

Expected/desired behavior

The component should show a message that a file is not found, without throwing js exceptions and should not become unusable after a failed attempt to load a file.

Environment

• Kendo UI version: 2024.1.319
• jQuery version: x.y
• Browser: [all]

Bug report

A hidden template column that is not included in the ColumnMenu appears after showing another column

Reproduction of the problem

• Use the following declaration for the columns:

              .Columns(columns =>
              {
                  //Hidden template column
                  columns.Template(x =>
                  {
                      int rptIndex = Model.IndexOf(x);
                      string namePrefix = "Grid[" + rptIndex + "].";
                      Html.Hidden(namePrefix + "Id", x.Id, new { @readonly = "readonly" });
                      Html.Hidden(namePrefix + "Name", x.Name, new { @readonly = "readonly" });
                  }).Hidden().IncludeInMenu(false);

                  columns.Bound(x => x.Id).Width(120).Hidden(true);
                  columns.Bound(x => x.Name).Width(200);
                  columns.Bound(x => x.ReportingDateOriginal).Width(500).HtmlAttributes(new { id = "reporting-date-original" })
                    .Filterable(f => f.UI(GridFilterUIRole.DateTimePicker).Cell(c => c.Template("dateFilter")));
                  columns.Bound(x => x.Test1).Width(200).Hidden(true);
                  columns.Bound(x => x.TimezoneOffset).Width(200).HtmlAttributes(new { id = "reporting-date-offset" });
                  columns.Bound(x => x.Test2).Width(200).Hidden(true);
                  columns.Bound(x => x.ReportingDateAdjusted).Width(500).HtmlAttributes(new { id = "reporting-date-adjusted" })
                    .Filterable(f => f.UI(GridFilterUIRole.DateTimePicker).Cell(c => c.Template("dateFilter")));
                  columns.Bound(x => x.Test3).Width(200);
                  columns.Bound(x => x.Test4).Width(200).Hidden(true);
                  columns.Bound(x => x.Test5).Width(200);
              })

• Show the Id column

Current behavior

The first time instead of the Id, the template column appears.

Expected/desired behavior

The Id column should appear and the template column should remain hidden.

Environment

• Kendo UI version: 2024.1.130
• Browser: [all]

There is a Kendo Validation in addition to ASP.net MVC one. 

There is a need for a method or script to disable the Kendo Validation and enforce the code to follow rules we define in the model.

Currently we have to write validation bypass script for each field, but I am looking for a way to disable Kendo Validations for the entire project or/and for specific page and it follows validation rules from the MVC model.

In most cases, validations from the MVC are sufficient and there is no need for redundance validations from the telerik.

My understanding after talking to support is that a grid with a popup editor has code behind the scenes that stops adverse scrolling behavior when the popup window closes.  However, under certain circumstances, this doesn't work if you have a grid nested in your popup editor that also has a popup editor.  As it was described to me, this "behavior is not directly related to the Grid, but the Kendo Window. Generally, it provides the preventScroll property, but I am afraid this scenario is more complex due to the window being internally embedded into the Grid".

The exact scenario I found was that if you shrink you browser window small enough that you need to use some scrolling, scroll down your grid a little, then do something to cause the popup editor to open.  Scroll down again to get to your nested grid, open that popup editor, then close it.  The browser then auto scrolls to the top.

I was given this code to fix the issue (and it DOES fix it):

<script>
    kendo.ui.Grid.fn._destroyEditableOrg = kendo.ui.Grid.fn._destroyEditable;
    kendo.ui.Grid.fn._destroyEditable = function () {
        var that = this;
        if (that._editContainer) {
            var kw = that._editContainer.data().kendoWindow;
            kw.setOptions({
                modal: false
            });
        }
        that._destroyEditableOrg();
    };
</script>

The problem is that these fields aren't documented... I would never have figured this out on my own.  So my feature request is that either this behavior is fixed or these properties exposed from the Grid settings.  

-Steven

PS: For Telerik, the original ticket was 1589389.

Hello,

Request/suggestion to enhance the scheduling functionality. For production environments, especially with long running processes the current setup is not sufficient.

See excel for an example of how this could work. Extension of current timeline to include a year. Would be best if multiple timelines could be defined creating more or less detail depending on choices.

The other axis to relate to the resource/asset where the work will take place.

Currently the scheduler works best for short-running activities. Displaying longer running activities is a challenge.

I have a Kendo Notification component on my page. When the page loads, it is possible a notification needs to show immediately. This fails because the Notification component is not ready yet. Even putting this message show inside a document.ready() call does not work. There’s no rendered event on this component to know when Kendo has it added to the DOM and it is accessible. So I ended up creating an array of messages to show. And running a setInterval block on page load until it is ready to go. Then clearing the interval and message array. It’s a work around but it is hacky and it would be better if I could subscribe to an event that tells me when the notification component can be used.

Hello,

I have a Scheduler Hierarchical Grouping similar as https://demos.telerik.com/aspnet-mvc/scheduler/resources-grouping-hierarchical

rather than meeting room in the above sample, I have department name instead. I group a list of user names by department name on a scheduler timeline view.

Is it possible to have a expand/collapse icon to allow me expand/collapse on each department? similar as tree list below

Please advise. Thanks!

Just like posted here (and declined) : http://kendoui-feedback.telerik.com/forums/127393-kendo-ui-feedback/suggestions/3844570-serialization-support-of-datasourcerequest-and-app

I would like to see a portable separate assembly that : 
- can be referenced both on ASP.NET MVC side and WCF server side.
- A DataSourceRequest and DataSourceResult class that serialize well in both SOAP and REST WCF.

Referencing Kendo from the Application server side also requires references to System.Web.Mvc, Razor pages, ... and others that shouldn't be necessary.

### Bug report

When server-side localization is used (the culture is different than the default one ("en-US")), all columns are filterable, even when the Filterable() configuration is disabled.

### Reproduction of the problem

1) Create a filterable TreeList and disable the filtering of a specified column.

2) Set the server-side culture to "es-ES".

//Web.config

<system.web>
    <globalization uiCulture="es-ES" culture="es-ES"></globalization>
</system.web>

//View.cshtml
@(Html.Kendo().TreeList<UserViewModel>()
        .Name("treelist")
        .Columns(columns => {
            columns.Add().Field(p => p.id).Filterable(false);
            columns.Add().Field(p => p.Name);
            ...
        })
	.Filterable(true)
	...
)

3) The "id" column is filterable even though the filtering is disabled:

### Expected/desired behavior

The filtering per column must be configurable irrespective of whether localization is used or not.

### Workaround

After the TreeList is initialized, call the setOptions() method and disable the filtering of the respective columns:

<script>
    $(document).ready(function () {
        var treelist = $("#treelist").getKendoTreeList();
        if (treelist) {
            var colOptions = treelist.columns;
            colOptions[0].filterable = false;
            treelist.setOptions({ columns: colOptions });
        }
    })
</script>

### Environment

* **Telerik UI for ASP.NET MVC/Core version: 2024.1.130
* **jQuery version: 3.7.0
* **Browser: [all]

Bug report

The rendering (structure and order of elements) of the th element of a column, for which a HeaderTemplate is set, does not match the Kendo UI Grid's rendering in a similar scenario. Prerequisites: HeaderTemplate, Sortable, Filterable enabled. For more context, see Ticket ID: 1639834.

Reproduction of the problem

Check the rendering of the header of the second column:

@(Html.Kendo().Grid<TelerikMvcApp1.Models.OrderViewModel>()
    .Name("grid2")
    .Columns(columns => {
        columns.Bound(p => p.OrderID).Filterable(false).Width(100);
        columns.Bound(p => p.Freight).HeaderTemplate("<span class='k-link'>My Template</span>");
        columns.Bound(p => p.OrderDate).Format("{0:MM/dd/yyyy}").Width(140);
        columns.Bound(p => p.ShipName);
        columns.Bound(p => p.ShipCity).Width(150);
    })
    .Sortable()
    .Filterable()
    .Pageable()
    .Scrollable()
    .HtmlAttributes(new { style = "height:430px;" })
    .DataSource(dataSource => dataSource
        .Ajax()
        .PageSize(20)
        .Read(read => read.Action("Orders_Read", "Grid"))
     )
)

Current behavior

The content of the th is the following:

<a aria-hidden="true" class="k-grid-filter-menu k-grid-header-menu">
    ...
</a>
<span class="k-link">
    ...
</span>

Expected/desired behavior

The th content should be rendered as follows:

<span class='k-cell-inner'>
    <span class='k-link'>
        ...
    </span>
    <a aria-hidden='true' class='k-grid-filter-menu k-grid-header-menu'>
        ...
    </a>
</span>

It should match the Kendo UI Grid's rendering: https://dojo.telerik.com/oTalIGir/8

Environment

• Kendo UI version: 2024.1.130
• jQuery version: x.y
• Browser: [all]

Row's hover effect should be optional and it could be enabled/disabled in grid's configuration, the same as we add Selectable, Navigatable, Sortable, Editable, etc., functionalities to grid. This could apply to odd/even coloring too. Should no need to do hacks to achieve this.

Enhancement

Currently, the RadioGroup binding does not implement the extended functionality for

Reproduction

RadioButtons have different behavior from the RadioGroup, when selecting values :

https://dojo.telerik.com/@protest/ovedihat

Expected/desired behavior

RadioGroup should have the same behavior.

Environment

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