Support for NullDisplayText property of the DisplayFormat metadata attribute.

Bug Report

When endless scrolling is implemented, manual DataSource operations using the DataSource APIs(query, page, sort, etc.) do not work as expected.  The endless scrolling settings are causing paging issues.  

Reproduction of the problem

1. Visit this Kendo UI Dojo.
2. Scroll to 40.
3. Click the Reset Filter button.

Current Behavior

The first page is only accessible, and when scrolling down the reads continue to occur.

Expected/desired behavior

The endless scrolling settings should not interfere with manual dataSource operations.

Workarounds

1. Solution when read is called, the Kendo UI Grid will reset to its original state(dojo). 
   

       kendo.ui.Pager.fn._refreshClick = function (e) {
           e.preventDefault();
           var grid = $("#grid").getKendoGrid();
           grid.dataSource.options.endless = null;
         	grid._endlessPageSize = 20;
         	grid.dataSource.pageSize(20);
       }

2. Solution which overrides the data(dojo).
   

       kendo.ui.Pager.fn._refreshClick = function (e) {
           e.preventDefault();
           var grid = $("#grid").getKendoGrid();
           window.restoreScroll = true;
           window.scolledValue = grid.content[0].scrollTop;
           grid.dataSource._data.empty();
           grid.dataSource._pristineData = [];
           grid.dataSource.read();
       }

Environment

• Kendo UI version: 2020.1.114

I use getOptions() and setOptions() to persist the state of the ajax bound grid that I have.

My toolbar is not a server one, it is this:

.ToolBar(toolbar =>toolbar.Create().HtmlAttributes(new { @class ="k-primary"}))

When I call the setOptions() method, it removes the Add button from the grid header.

It would be great if we could use the built in column filtering on columns containing arrays.

Or at the very least have a workaround (which I have not been able to find on the site).

I understand that the current implementation relies on the data being flat, but support for the following situation would be great:

- Grid cell is bound to an array and a template is used to display character delimited data (ie. One, two, three, four).

- Column filtering will display multi select options for the data.

Currently, the autoFitColumn() method shouldn't be used to resize all columns in a large grid, as noted here: https://docs.telerik.com/kendo-ui/api/javascript/ui/grid/methods/autofitcolumn

Could this performance be improved by deferring the width calculation?  So a 10 column grid could be completely autoFit with 1 calculation instead of 10.

Could an .AutoFit(true) method be added to the GridColumnBuilder's Fluent Api?  

This would allow me to build columns such as:

.Columns(column => column.Bound(model => model.Value).AutoFit())

This should defer the autofit calculations so that they can be run once for all auto-fitted columns, rather than re-calculating for every column.

In other words, this should NOT simply call autoFitColumn() as it is currently implemented.

Implement stacking columns on smaller screens, e.g., https://docs.telerik.com/devtools/aspnet-ajax/knowledge-base/grid-stack-responsive-columns-on-small-screens

We are using the Kendo UI for different components like Grid in our APS.Net MVC application. Currently we are experiencing an issue while exporting the Kendo grid to Excel from mobile (both android and ios). It shows the following warning message. The same works when exporting from a PC without any issue. Could you please help to resolve the issue.

Implement an option to control the columns width in scenarios that involve resizing the browser window.

Currently, if you specify the width of all the columns, on resizing the browser window the columns automatically resize proportionally. A column property MaxWidth would be nice to have, since it would prevent columns from resizing beyond a specified width value.

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]

Hello telerik support,

recently we updated to 2023.2.718

somehow the grid column menu is not completely in german language 

How can I apply german language to the complete column menu?

Best regards

Andy

Add a class to cells in a sorted column (similarly to the .k-sorted class in a sorted column's <th> element) to distinguish them from cells in unsorted columns.

Hi Team,

I'd like to request a similar example based on the virtualization of local data demo for UI for ASP.NET MVC.  

Thank you!