### Bug report

When filtering a specified Grid column, the filter expressions are inverted when the value of the first expression is empty/null.

### Reproduction of the problem

1) Filter a Grid column by leaving the first filter value empty:

2) Filter the Grid and open again the filter menu. The filter expressions are inverted:

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

### Expected/desired behavior

The filter menu expressions must remain the same.

### Environment

* **Kendo UI version: 2025.2.702
* **jQuery version: 3.7.0
* **Browser: [all]

Bug report

When the scrollable option is disabled, on resizing the browser window by making it more narrow, at certain point the columns stop resizing and the whole table goes out of the right border of the Grid. Reproducible with the SASS and LESS themes.

Reproduction of the problem

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

1. Either resize the right pane or use Fullscreen and resize the browser window and make it narrower.

Current behavior

The table goes out of wrapping element (.k-grid).

Expected/desired behavior

The columns resize and the table remains within the borders of the Grid.

Environment

• Kendo UI version: 2023.1.117
• jQuery version: x.y
• Browser: [all]

Bug report

When the Kendo UI Grid is configured to have endless scrolling and an item is updated on the first page, the scrollbar is reset. If an update is done on a page after the first one, the scroll is correctly persisted.

Reproduction of the problem

1. Set a grid with an endless scroll.

2. Scroll down (without entering the second page).

3. Update an item on the first page.

4. The scroll is reset.

Dojo sample for reference:

https://dojo.telerik.com/EcUKIrAK

Environment

* **Kendo UI version:** 2021.1.330
* **jQuery version:** 1.12.4
* **Browser:** [all]

Bug report

In a state persistence scenario, the Grid state is not properly restored when the "all" pageSizes option is selected.

Reproduction of the problem

1. Run this dojo example: https://dojo.telerik.com/yGLYKKQz
2. Select "all" in the Grid's pager dropdown and click the Save button above the component.
3. Select a different page size option in the pager dropdown, e.g., 20.
4. Click the Load button.

Current behavior

The Grid shows page 1 of the data and the currently selected page sizes option is shown (e.g., 20).

Expected/desired behavior

The Grid shows all the data and the pager dropdown shows "all" as the selected value.

Environment

• Kendo UI version: 2024.4.1112
• Browser: All

Bug Report

The SaveButton() method does not render the Cancel Command button in Grid's Toolbar Template

Reproduction of the issue

1. Declare the Grid's Toolbar.Template() API configuration with an Action or Delegate
2. Notice, that Grid's Toolbar does not explicitly add the Cancel Command button.

@(Html.Kendo().Grid<GridModel>()
    ...
   .Name("grid")
   .ToolBar(t =>
      {
          t.Template(@<text>
            <span class="group-buttons">
	         @item.SaveButton();
            </span>
          </text>);
  })
)

Current behaviour

The SaveButton() method does not render the Cancel Command in Grid's Toolbar Template.

Expected behavior

The SaveButton() method should render the Cancel Command in Grid's Toolbar Template.

Workaround

A possible way to circumvent this behavior would be to explicitly declare both the Save and Cancel buttons as independent Button components via the Toolbar.ClientTemplate() API configuration.

@(Html.Kendo().Grid<GridModel>()
	...
	.Name("grid")
        .ToolBar(t =>
	{
		t.ClientTemplate(Html.Kendo().Template()
				.AddHtml(@<text>
					<span class="group-buttons">
				</text>)
				.AddComponent(saveBtn => saveBtn
					.Button()
					.Name("saveBtn")
					.Icon("check")
					.HtmlAttributes(new { @class = "k-grid-save-changes", style="margin-right: 2%;" })
					.Content("Save Changes")
				)
				.AddComponent(cancelBtn => cancelBtn
					.Button()
					.Icon("cancel")
					.Name("cancelBtn")
					.HtmlAttributes(new { @class = "k-grid-cancel-changes" })
					.Content("Cancel Changes")
				)
				.AddHtml("</span>")
		);
	})
)

Is it possible to implement a MaxLength() option in the Filterable(f => f.Cell()) configuration that will set the maxlength attribute to the Filter row element in order to limit the length of the string that the user can enter into the Filter row input?

For example:

@(Html.Kendo().Grid(Model)
                   .Name("grid")
                   .Columns(columns =>
                   {
                       columns.Bound(x => x.Name).Filterable(ftb => ftb.Cell(c => c.MaxLength(5)));
                   })
                   ...
)

Bug report

The attributes handler overload does not get executed when the column is initially marked as hidden.

Reproduction of the problem

1. Open the following dojo.
2. Change the hidden property of the ContactTitle field to true.

Current behavior

The attributes handler is not executed when the column is hidden.

Expected/desired behavior

The attributes handler should be executed when the column is hidden.

Environment

• Kendo UI version: 2023.1.425
• Browser: [all]

Bug report

There are multiple differences in the theme files. In the theme file added by the NuGet browser-specific styles are missing and calc values differ. Likely the issue is due to autoprefixer and postcss-calc being used in the kendo-themes repo: https://github.com/telerik/kendo-themes/blob/develop/postcss.config.js
and not being used in theme compilation logic in the kendo repo:
https://github.com/telerik/kendo/blob/production/gulpfile.js#L55C38-L55C39
https://github.com/telerik/kendo/blob/master/build/gulp/sass.js

Reproduction of the problem

1. In an ASP.NET MVC app install the Telerik.UI.for.AspNet.Mvc NuGet package.
2. The NuGet package adds the kendo theme files to the MyApp\Content\kendo\2024.2.514
3. Open the classic-silver.css file added by the NuGet package and compare it to the file hosted on the CDN: https://kendo.cdn.telerik.com/themes/8.0.1/classic/classic-silver.css

Current behavior

There are multiple differences similar to the exemplary ones posted below:

Example 1:
CDN line 33994:

.k-menu-vertical > .k-menu-item > .k-menu-link > .k-menu-expand-arrow {
    margin-inline-start: var(--kendo-spacing-2, 0.5rem);
    margin-inline-end: calc(var(--kendo-spacing-2, 0.5rem)*2*-1 + -16px - var(--kendo-spacing-2, 0.5rem)/2*-1);
}

NuGet:

.k-menu-vertical > .k-menu-item > .k-menu-link > .k-menu-expand-arrow {
    margin-inline-start: var(--kendo-spacing-2, 0.5rem);
    margin-inline-end: calc( -1 * (calc( var(--kendo-spacing-2, 0.5rem) * 2 + 16px) - var(--kendo-spacing-2, 0.5rem)/2));
}

Note the difference in the margin-inline-end value.

Example 2:
CDN line 36510:

.k-progressbar-vertical .k-progress-status {
    -ms-writing-mode: tb-lr;
        writing-mode: vertical-lr;
}

NuGet:

.k-progressbar-vertical .k-progress-status {
    writing-mode: vertical-lr;
}

Expected/desired behavior

The theme files distributed through CDN and NuGet should be identical.

Environment

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

Bug report

The ClientGroupFooterTemplate and ClientFooterTemplate configuration lead to an invalid template error when strict CSP mode is enabled. There are no corresponding methods that accept a TemplateHandler.

Reproduction of the problem

@(Html.Kendo().Grid<TelerikMvcApp3.Models.OrderViewModel>()
    .Name("grid")
    .Columns(columns =>
    {
        columns.Bound(p => p.OrderID).Filterable(false);
        columns.Bound(p => p.Freight);
        columns.Bound(p => p.OrderDate).Format("{0:MM/dd/yyyy}");
        columns.Bound(p => p.ShipName);
        columns.Bound(p => p.ShipCity).ClientGroupFooterTemplate("Total:").ClientFooterTemplate("Team Total");
    })
    .Groupable()
    .Pageable()
    .Sortable()
    .Scrollable()
    .Filterable()
    .HtmlAttributes(new { style = "height:550px;" })
    .DataSource(dataSource => dataSource
        .Ajax()
        .PageSize(20)
        .Read(read => read.Action("Orders_Read", "Home"))
    )
)


@(Html.Kendo().DeferredScriptFile())

Current behavior

JS exceptions on initializing the Grid and on attempting to group it by ShipCity.

Expected/desired behavior

CSP compatible templates.

Environment

• Kendo UI version: 2023.3.1114
• jQuery version: x.y
• Browser: [all]

### Bug report

When the Grid is set up for InCell editing, and the column editor is the Upload widget, the user cannot select a file to upload when the Grid is navigatable.

The issue occurs in version >= 2024.1.130

### Reproduction of the problem

1. Create an InCell editable Grid and enable its "navigatable" option.

2. Set the Upload widget as a column editor.

3. Enter a specified cell in edit mode and try to select a file for upload.

4. The cell closes immediately.

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

### Expected/desired behavior

The cell must remain focused when the Upload button is clicked.

### Workaround

Handle the "edit" event of the Grid, handle the "mousedown" event of the Upload button, and call stopImmediatePropagation():

            $("#grid").kendoGrid({
                editable: true,
              	navigatable: true,
                edit: function(e) {
                   if($(e.container).find("input[type='file']")) {
                   	$(".k-upload-button").on("mousedown", function (event) {
                          event.stopImmediatePropagation();
            		});
                   }
                }
                ...
            });

### Environment

* **Kendo UI version: 2024.1.130
* **jQuery version: 3.7.0
* **Browser: [all]

Is it possible to add the ClientTemplateView() to load a partial view into the column template?

@(Html.Kendo().Grid <OrderViewModel>()
        .Name("grid")
        .Columns(columns =>
        {
            columns.Bound(p => p.ShipName).ClientTemplateView(Html.Partial("~/Views/Details/MyView.cshtml")); 
            ...
        })
        ...
)

Bug report

The Grid cell does not enter edit mode on double tap on iOS in Chrome and Edge. Works correctly in Safari.

Reproduction of the problem

1. Run this dojo example on iOS in Chrome or Edge: https://dojo.telerik.com/idOVAZiP/3
2. Double tap a cell to edit its value

Current behavior

The cell does not enter edit mode.

Expected/desired behavior

The cell enters edit mode.

Environment

• Kendo UI version: 2023.3.1114
• jQuery version: x.y
• Browser: [iOS Chrome, iOS Edge]

### 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

Reproduction of the problem

1. Go to https://demos.telerik.com/aspnet-mvc/grid/paste-from-excel
2. Inspect the Grid toolbar

Current behavior

No dropdown is rendered.

Expected/desired behavior

A dropdown is rendered (see the same demo in Kendo UI for jQuery, or UI for ASP.NET Core)

Workaround - call the Grid's setOptions method on document.ready as shown below:

<script>
    $(document).ready(function() {
        //replace 'grid' with the actual Name value of your Grid:
        $("#grid").data("kendoGrid").setOptions({
            toolbar: ["paste"]
        })  
    })
</script>

Environment

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

Bug report

The specific here is the disabled Sortable configuration. With Sortable enabled, the rendering on the header content is correct.
Similar issue: #6955

Reproduction of the problem

1. Initialize a Grid without setting Sortable:

@(Html.Kendo().Grid<TelerikMvcApp1.Models.OrderViewModel>()
    .Name("grid")
    .Columns(columns =>
    {
        columns.Bound(p => p.OrderID).Filterable(false).Width(200);
        columns.Bound(p => p.Freight).Width(200);
        columns.Bound(p => p.OrderDate).Format("{0:MM/dd/yyyy}").Width(200);
        columns.Bound(p => p.ShipName).Width(200);
        columns.Bound(p => p.ShipCity).Width(200);
    })
    .Pageable()
    .Scrollable()
    .Filterable()
    .HtmlAttributes(new { style = "height:550px;" })
    .DataSource(dataSource => dataSource
        .Ajax()
        .PageSize(20)
        .Read(read => read.Action("Orders_Read", "Grid"))
    )
)

2. Inspect the rendering of a column header

Current behavior

The column name is nested directly in the th element, instead of being wrapped in additional elements like in the Kendo UI for jQuery Grid or in the Grid for ASP.NET Core.

Expected/desired behavior

The column name should be wrapped in additional span elements with classes k-cell-inner, k-link, k-column-title:

<span class="k-cell-inner">
    <span class="k-link">
        <span class="k-column-title">Ship Name</span>
    </span>
    ... anchor element...
</span>

Environment

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

### Bug report

When there is an initially hidden column in the Grid with multi-column headers, the hiding/showing of columns through the ColumnMenu does not work correctly.

### Reproduction of the problem

1) Hide a column in the Grid with the Hidden(true) option.

2) Hide a column through the Grid column menu.

3) The header of the column that is hidden is added to the previous visible column.

4) Show the same column through the column menu - it does not render back as expected.

The issue is caused by the a mismatch in the column group header rendering:

• Group header:
  • aria-haspopup="dialog" is missing;
  • data-title="{group name}" is missing;
  • the title in the group header must be rendered as:

<span class="k-cell-inner"><span class="k-link"><span class="k-column-title">Product Information</span></span></span>

• Header:
  • aria-haspopup="menu" is missing;

### Environment

* **Telerik UI for ASP.NET MVC version 2024.2.514

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]

Bug report

Reproduction of the problem

1. Initialize a Grid with the following Filter and ColumnMenu configuration:

@(Html.Kendo().Grid<TelerikMvcApp1.Models.OrderViewModel>()
    .Name("grid")
    .Columns(columns => {
        columns.Bound(p => p.OrderID).Filterable(false).Width(100);
        columns.Bound(p => p.ShipCity).Width(100);
        columns.Bound(p => p.ShipCity).Width(150);
        columns.Bound(p => p.OrderDate).Format("{0:MM/dd/yyyy}").Width(140);
    })
    .Sortable()
    .Filterable(f => f.Extra(true)
        .Messages(message => message.Equals("Равно"))
        .Messages(message => message.Filter("Приложи"))
        .Messages(message => message.Clear("Изчисти"))
        .Messages(message => message.Info("Покажи записи които:"))
        .Messages(message => message.And("и"))
        .Messages(message => message.Or("или"))
        .Messages(message => message.AdditionalOperator("fdfdfd"))
        .Messages(message => message.IsFalse("Активни  "))
        .Messages(message => message.IsTrue("Неактивни   "))
    )
    .ColumnMenu()
    .DataSource(dataSource => dataSource
        .Ajax()
        .PageSize(20)
        .Model(model => model.Id(p => p.OrderID))
        .Read(read => read.Action("Orders_Read", "Grid"))
     )
)

Or use this REPL example: https://netcorerepl.telerik.com/QSYflePv05yaqnLZ07

The issue is also reproducible with the ColumnMenu set the following way:

.ColumnMenu(cm => cm
        .Messages(message => message.Columns("Колони"))
        .Messages(message => message.ColumnSettings("Насторйки"))
        .Messages(message => message.Filter("Филтър"))
        .Messages(message => message.SortAscending("Сортирай възходящ ред"))
        .Messages(message => message.SortDescending("Сортирай низходящ ред"))
    )

Current behavior

The filter menu messages are not set.

Expected/desired behavior

The filter menu messages are set regardless of whether a ColumnMenu is enabled or not.

Environment

• Kendo UI version: 2024.1.314
• jQuery version: x.y
• Browser: [all]

Bug report

Reproduction of the problem

1. Compare the rendering of the "Next Page", "Last Page", "Previous Page" and "First Page" buttons in RTL between the MVC Grid and the jQuery and Core Grids:

https://demos.telerik.com/aspnet-mvc/grid/right-to-left-support
https://demos.telerik.com/kendo-ui/grid/right-to-left-support
https://demos.telerik.com/aspnet-core/grid/right-to-left-support

Current behavior

Incorrect rendering of the buttons.

Expected/desired behavior

Buttons rendered consistently with the jQuery and Core Grids.

Environment

• Kendo UI version: 2023.3.1010
• jQuery version: x.y
• Browser: [all]

Bug report

Dragging a row from a Grid to another empty Grid is not working.

Reproduction of the problem

1. Open the following dojo:
   https://dojo.telerik.com/EGIyemen
2. Try to drag a row to the empty Grid

Current behavior

The row is not inserted in the empty Grid

Expected/desired behavior

The row should be inserted in the empty Grid.

Environment

• Kendo UI version: 2022.3.1109
• Browser: [all]