Bug report

The Grid's Pager pageSize DropDown selected value is not shown properly in the Less Material theme

Reproduction of the problem

1. Run this Demo

Expected/desired behavior

The value of the DropDown should be shown as expected

Environment

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

### Bug report

When the Grid filter menu is customized with a DropDownList, the initial option defined by using the "index" property is not set.

### Reproduction of the problem

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

### Expected/desired behavior

The DropDownList should be initialized with an initially selected option.

### Environment

* **Kendo UI version: 2022.1.119
* **jQuery version: 1.12.4
* **Browser: [all]

Bug report

Grid throws an error when the default behavior of the pdf export event is prevented.

Reproduction of the problem

1. Run this dojo
2. Click the "Export to PDF" button

Current behavior

Inspect the console tab and note the submitted error:

Expected/desired behavior

No error should be thrown

Environment

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

Currently, the TagHelper Grid cannot bind to local DataSource as in the HtmlHelpers: https://demos.telerik.com/aspnet-core/grid/local-data-binding

Is it possible to implement it?

Bug report

When the Grid's Group Paging is enabled and its content is grouped, the Multicheckbox Filter doesn't filter the group data correctly.

Reproduction of the problem

1. Run this REPL Example.
2. Group by a column for example „City”
3. Filter the Country column for example „USA”
4. Check the result for a specific City group

Current behavior

The group shows rows that shouldn't be included when the column is filtered properly

Expected/desired behavior

The group should only show the filtered rows

TicketID:

1546090

Environment

• Kendo UI version: 2021.3.1207
• Browser: [all]

Hello,

When you add any kind of filter to the grid, he is wrapped inside span with class "k-filtercell". It would be very usefull to add HtmlAttributes to the html element. Last time i wanted to add class only on the filtercell so i can customize the ui to match our theme. The idea was to have expression for each filter type so i can create css only for the filters. Most of the expressions were ok, because they were wrapped inside Template. But in cases like enum i dont want template, i want only to add class to the filtercell, so i can change it. Its not ok for one types to do the changes with filter expression, for other types to make changes with column.HtmlAttributes(...).

If not HtmlAttributes, at least .Class(...).

Regards,

Dinko

### Bug report

The Column.Exportable option is not correctly serialized and cannot be used to export hidden columns.

### Reproduction of the problem

1. Set Column.Exportable(true) and Column.Hidden(true).

2. Export the grid and see that the column is not present in the exported file.

### TicketID:
1543405

### Environment

* **Kendo UI version:** 2021.3.1109
* **jQuery version:** 1.12.4
* **Browser:** [all]

### Bug report

When the filter is applied through the search panel, the query (more specifically, the filter expressions) is not built correctly. This results in displayed rows that have values that do not match the value from the search panel.

### Reproduction of the problem

1. Enable Search panel and group paging of the grid.

2. Set a value in the search panel and group by a column.

3. Expand the group and verify that there are items with values that do not match the filter expression from the search panel.

Short video demonstration:

https://screencast-o-matic.com/watch/crXFlXVI3i0

### Expected/desired behavior

The returned results should comply with the filter expression built from the Search panel.

### TicketID:
_1543306

### Additional notes and explanation

The Search panel builds the filter expression with the logic operator "or". While this is correct when the actual query is further built from the data source's internals (group function of the kendo.data.js file), the filter will be built with the "or" logic instead of "and". This query has to be restructured in order to send two filter objects with the "and" logic. The first filter object should contain all filter expressions built from the search panel with the "or" logic operator and the second filter object should contain an expression with the operator "eq", the field by which the group is built, and the value. The two filter objects should be combined with the "and" logic. 

### Environment

* **Kendo UI version:** 2021.3.1109
* **jQuery version:** 1.12.4
* **Browser:** [all]

Hi

Just to let you know that the Demo for the Grid SignalR feature is showing an error.

(see screen dump attached)

Thanks
Darryl

Currently a DateTime property of a nested object does not get parsed when used as a column in the Grid:

public class MyClass
{
   public MyOtherClass Item{get;set;}
}

public class MyOtherClass
{
    public DateTime CreatedAt{get;set;}
}

and Formatting cannot be applied:

 columns.Bound(p => p.Item.CreatedAt).Title("Time").Format("{0:D}");

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]

At moment the "ForeignKey" method supports only predicates. Is it possible to implement a String overload (a screenshot is attached)?

It will be great if we can have a very simple "out-of-the-box" way to add a Column Chooser in the toolbar, similar to the Search Feature.

Something like Syncfusion's column chooser here:
https://ej2.syncfusion.com/aspnetcore/Grid/ColumnChooser

This will help me significantly in my development effort and provide a much better experience for my paying customers.

I have hundreds of grid tables with different schemas, columns with MinScreenWidth, and hidden columns (depending on the availability of data).

On a page, it can have multiple grid tables that are dynamically generated.

I also use View Component to generate each grid table.

The current column menu isn't perfect because I want it to only act as a filter checkbox, not a menu where a user needs to click twice to access the filtering feature. (And my users need to use the filtering mechanism A LOT)

Thanks,

Luke

Add GroupPaging method to the configuration of the Custom DataSource in Telerik UI for ASP.NET Core as available for Telerik UI for ASP.NET MVC.

Example: https://demos.telerik.com/aspnet-mvc/grid/grouppaging

Hi folks!

I am using the Grid's ColumnMenu with its new ComponentType-property set to "modern" like this:

@(Html.Kendo().Grid<my_fancy_web_application.ViewModels.ProjectListViewModel>()

                .Name("myGrid")
                .Editable(editable => editable.Mode(GridEditMode.InLine).DisplayDeleteConfirmation("Willst Du diesen Eintrag wirklich löschen?"))
                .Sortable()
                .Scrollable()                
                .Pageable(pageable => pageable.Enabled(false))
                .ColumnMenu(columnMenu => columnMenu.ComponentType("modern"))
// ... going on with some further definitions
)

In the <head>-Tag of my _Layout.cshtml file, I have set the Kendo Culture to Swiss German:

<script>kendo.culture("de-CH")</script>

What I now observed is, that the buttons "Apply" and "Reset" did not get translated properly and remain in English (see Column_Menu_Reset_Apply_Button.png). Whereas other messages are correctly translated. 

I tried to find out which message property was set there, so that I could add it manually to the "kendo.messages.de-CH.min.js" (as by the way I still have to do for e.g. the Grid's searchbar placeholder "Search..."). 

In the loaded kendo.all.min.js (2021.1.330) I discovered, that there was no message property in place, and the texts were rather hard-coded:

'<div class="k-columnmenu-actions">' + '<button class="k-button" type="button">Reset</button>' + '<button class="k-button k-primary" type="button">Apply</button>' + '</div>' + '</div>'

With the Chrome's dev tools and the source map, I found the above code on line 55815 by searching for the class "k-columnmenu-actions".

Could you please change the mentioned code to make use of the kendo.messages-properties and update the culture-specific kendo.messages files accordingly?

Thanks in advance!

Kind regards,

Janick

The Custom() DataSource has capability to set the initial Page of the grid:

        .PageSize(20)
        .Page(4)

While the Ajax() DataSource does not. It would be nice if it gets added.

Currently, you can use the page() method for local or .Ajax() bound grid:
https://docs.telerik.com/kendo-ui/api/javascript/data/datasource/methods/page

Or query:

https://docs.telerik.com/kendo-ui/api/javascript/data/datasource/methods/query

I posted this in the forums but didn't get a response so I'll try here.  Per this link, and other forum posts I thought that when server operations are set to 'false' that non string types would work in the search box for the ASP MVC Core grid.

Documentation:

https://docs.telerik.com/aspnet-core/html-helpers/data-management/grid/search-panel?_ga=2.40480546.1407553043.1611076638-1335478734.1604974711

Another forum post reference:

https://www.telerik.com/forums/new-search-panel-and-datetime

My grid code is below.  The 'PaymentType' Column is an enum and the search does not work for it.  I have also tried adding this:

.Search(search=> { search.Field(f => f.PaymentType); })

but it didn't make a difference

    @(Html.Kendo().Grid<B3.Services.LoanServices.LoanServiceModels.PaymentServiceModel>()
        .Name("PaymentRegisterReport")
        .DataSource(dataSource => dataSource
            .Ajax()
            .Read(read => read.Action("Payments_Read", "StandardReports", new { area = "Reports" }))
            .PageSize(1000)
            .ServerOperation(false)
        )
        .Columns(columns =>
        {
            columns.Bound(p => p.Date).Format("{0:MM/dd/yyyy}").Title("Date");
            columns.Bound(p => p.LoanName).Title("Loan Name");
            columns.Bound(p => p.PaymentType).Title("Payment Type");
            columns.Bound(p => p.CheckNumber).Title("Check Number");
            columns.Bound(p => p.Amount).Title("Amount").Format("{0:C}")
                .HtmlAttributes(new { style = "text-align: right" }).HeaderHtmlAttributes(new { style = "text-align: right" });

        })
        .Pageable()
        .Sortable()
        .Filterable()
        .HtmlAttributes(new { style = "font-size:12px" })
        .ColumnMenu()
        .ToolBar(t =>
        {
            t.Search();
            t.Excel();
        })
        .Reorderable(l => l.Columns(true))
        .Events( e =>
        {
            e.ColumnShow("saveKendoGridState");
            e.ColumnHide("saveKendoGridState");
            e.ColumnReorder("kendoGridColumnReorder");
        })
    )

When a Grid is placed inside a template (e.g. hierarchy), the # symbol needs to be escaped from strings since it is a special key for the Kendo internal logic:
https://docs.telerik.com/kendo-ui/framework/templates/overview#creating-inline-templates 

This creates a problem with Unicode letters, since they are automatically encoded by the framework to values containing the # symbol on the client. Currently, a column having Unicode characters in its HtmlAttributes causes an "invalid template" error:

columns.Bound(p => p.Item).Width(200).Title("Item").HeaderHtmlAttributes(new {title = "Item with äöüÄÖÜß"});

Creating a .ToolTip("Hover Text") property similar to the existing .Title("Header Text") one will resolve this issue and help users to easily provide tooltips for the column headers.

Workarounds until the issue is fixed:

Workaround 1:

columns.Bound(p => p.Item).Width(200)
          .HeaderHtmlAttributes(new {
              title = GetEncodedText("äöüÄÖÜß"), @class="encodedHeader" });
...
@{ string GetEncodedText(string title)
    {
        return Html.Encode(title).Replace("#", "\\#");
    } }

<script>
    $(document).ready(function () {
        $("div.k-grid.k-widget").each(function (i, e) {
            var grid = $(e).data().kendoGrid;
            grid.bind("dataBound", gridDataBound);
            grid.bind("detailExpand", function (args) {
                var innerGrid = args.detailRow.find("div.k-grid.k-widget").data().kendoGrid;
                innerGrid.bind("dataBound", gridDataBound);
            });

            function gridDataBound(e) {
                e.sender.element.find("th.encodedHeader").each(function (i, e) {
                    var headerCell = $(this);
                    headerCell.attr("title", $("<textarea/>").html(headerCell.attr("title")).text());
                });
            }
        });
    });
</script>

2. Workaround:

columns.Bound(p => p.Item).Width(200)
.ClientHeaderTemplate("<span class='headerTemplate' title='Item with äöüÄÖÜß'>Title</span>");

Event definition:

@(Html.Kendo().Grid<OrderPosModel>()
...
.Events(e=>e.DataBound("gridDataBound"))

function gridDataBound(e) {
     e.sender.element.find("span.headerTemplate").each(function (i, span) {
     span.parentElement.title = span.title;
});