for excelExport, there's only autoWidth option for all columns, not for some specific cells. Say I want to have a long description at the top of excel, but I don't want it to have autoWidth because it will make other cells in the same column have long trailing spaces. So we need a way to override the global autoWidth column setting.

how to debouce time on use GroupBindingDirective ?

An ordinary kendo-grid-column HTML tag can be styled like so:
<kendo-grid-column title="Session" [headerStyle]="{'background-color': '#6a99c1','color': '#fff'}">

... for example. But when I use the directive kendoGridDetailTemplate  the left-most genereated header-column can not be styled as far as I have seen. It should be possible to somehow style this header-column also.

I opened this question

https://stackoverflow.com/questions/51331725/kendo-grid-for-angular-2-reactive-formarray

Would be nice to make grid reactive more transparent, or make a complete example to use it.

We need feature like copy data from excel and paste it directly into the kendo grid for angular. 

Introduce support for Loading / Error templates for components. eg.:

<kendo-grid [success]="boolean" [loading]="boolean>
  <div kendo-error-template>
   We Cannot load your data
  </div>

 <div kendo-loading-template>
    <!== some kind of spinner, or just text>
  </div>
</kendo-grid>

I find myself reusing similar/identical code in order to implement filtering, sorting and virtual paging. In almost all cases, I am simply applying the filters, sort and determining the records to select based on the page as shown in the API.

This code should be inbuilt into the kendo grid. If filterable is true, kendo should implement the filter change event and apply filters automatically; the users should not be forced to define what happens on filter change for every grid instance. Similarly, if sortable is true, the kendo grid should automatically implement default sort functionality.

The same would also be useful for virutal scrolling. If scrollable is set to 'virtual', then the view to be shown in the grid should be automatically calculated on page change.

Allow user to filter like excel and your Keno UI for jquery. Where user can filter record by applying checkbox check and search.

Since the client side filtering honours ignoreCase and the toOdatastring not, we got a difference in behaviour, so i'd like to report this as a BUG!

With dropdowns I use: &$filter=contains(tolower(FieldName), tolower('" + searchString + "')) but for grid filtering a COLUMN BASED ignoreCase is a MUST!

It way too complicated to clear the selection programmatically in the grid at the moment. Please add a clearSelection method on the grid instance.

In the jQuery version of the Angular Grid, it was possible to add row templates to a grid which was useful because you could set attributes directly to the tr.

In my case, I have a scenario where I want to add a title attribute for tooltips for the whole row, not just individual cells. 

I can provide a function for rowClasses, which is great, but it would be nice if there was a similar function I could use to add other attributes as well directly to the tr.

At the moment my work around is to add the title to every column individually, but that's not ideal as it affects the positioning of the tooltip etc

Suggestion: Make the  'select all' checkbox in the grid more intuitive for the user.

When we combine virtuall scrolling and selection via checkboxes for the kendo grid the 'select all' checkbox in the header will only select rows which are already visible / paged in.

This is of course because kendo does not yet now about the not yet paged in rows.
On the other side this behavior is quiet unintuive for the user.
The user does not know about page border and expects the select all checkbox to check all rows.

The desired functionality could be realized by internally differentiating between two selection modes, one where the selected rows are are accessible via api (normal mode) and one where the deselected rows are accessible via api (mode where select all is enabled).

This would increase the user experience. 

If the value "-1" is passed in as one of the values in pageSizes input for the PagerPageSizesComponent, that option should be shown as "All" and should show all rows available for the grid.

Implement "Shift + Arrow Keys  adds the row which holds the focused cell to the selection (only for selection mode "multiple")", explained here (https://demos.telerik.com/kendo-ui/grid/keyboard-navigation)

It's possible to assign class/styles to column groups, column heads, and cells, but not to the filter cells. 

Currently the grid uses indexes to memorize which data row is expanded. When a new row is inserted (due to a new data item inserted in the underlying collection) before a currently expanded details row, then then expanded details view will shift to the row before (old index). This is not desirable in a scenario with a lot of adding/removing of items. 
It would be great if memorizing expanded details row could be bound to the data object.

I would like to know Do you have any plan to release context menu feature for kendo grid

Once in a while, I try out a new Version to see, whether performance has improved. and constantly, I find that this is not the case.
The best treeshaking technique from Angular is spoilt by KendoUI components because of all the millions of bytes of script code that get downloaded by your components and lead to a desastrous client experience!
Optimization would be as simple as a good redesign. I wonder, why this still did not happen over the last year!

Specifies a date/time grouping option, which determines time periods to be used as grouping values in group for Date column value..

Ex : By Date => The time portion of the values is ignored.
By Month, 
By Year 
Relative to today
etc