Updating a single row by default expands ALL collapsed groups. Removing a single row or inserting a single row does the same. This design lacks granularity: an isolated change to a single row should not cause the expanded/collapsed state of all groups to change.

If the user is focusing on flu cases in New York City and a new flu case is added to the Los Angeles group, why should every group in the grid be expanded? 

 Only the group affected by the change should change its UI state. The grid should listen for the change event of the observed  *row* and if it is felt that a change to the row's data should cause a UI change, only the group to which that row belongs should be changed.

When the grid is grouped, the grouping column is visible with the same values in each cell of each group. Looks weird and confusing.

How can we accomplish more efficient look and hide the grouping column?  http://demos.devexpress.com/aspxgridviewdemos/GroupingSorting/Grouping.aspx 

Reference article:
http://www.kendoui.com/forums/ui/grid/how-to-hide-the-column-the-grid-is-grouped-by-additional-grouping-questions.aspx

I have already made this feature request but perhaps not very clearly, as my topic asked for a particular solution rather than presenting the generic issue. So  I'd like to suggest it again, that other users might better understand what I was asking for, and hopefully vote for it, because I think it is a necessary feature for any application where the grid is refreshed with up-to-the-minute data every 30 seconds or so. As things stand now, the Kendo grid is stateless in this regard -- it re-expands all collapsed groups by default after a data rebind.

Below is the link to the original request, where I asked for two events (groupCollapsed and groupExpanded) and for a unique handle to the k-grouping-row that would "survive"  the data-rebind that occurs when the dataSource's data method is invoked, as in dataSource.data(someNewFreshDataWithSameSchema). 

The unique handle was simply the JSON representation of the array of distinct data values that are the basis for the particular grouping, stored in a custom data attribute,  data-k-distinct-values, in the k-grouping-row.  This data would be at-hand when the group is created, and its beauty is in its simplicity -- it does not make any additional "statefulness" demands on the grid.  

Here's the link:

http://feedback.kendoui.com/forums/127393-kendo-ui-feedback/suggestions/3487545-add-groupcollapse-groupexpand-events-and-a-data-k-

Ability for a grid to show foreign key values from a remote datasource rather than just a fixed array.

Refer to: http://www.kendoui.com/forums/ui/grid/foreign-key-option-doesn-t-work.aspx

http://www.kendoui.com/forums/ui/grid/pager-controls-should-be-hidden-when-total-results-is-less-than-the-pagesize.aspx

The grid has a number of built in filters, what is not supported is searching for cells that have no value or some value (i.e. NULL or NOT NULL).
This would be a very useful addition.

When a user groups by a foreignkey column, it should show and sort by the value that's displayed in that column, NOT the underlying id value.  I do have a workaround, but it seems like this is something that should be handled "out of the box".

Current filter control for a date column only shows a date picker, if the data that's bound to the column also contains the time part then the filters don't work properly. Adding a date time picker would solve the problem.

My Kendo grid has long column titles but the column width must remain static so we need a way to make a wrapable column header

I realize the grid's batch save is asynch, but most every project I work on has a need to know when grid saving is complete.  Right now you can know when each of the CRUD operations is complete, but not when ALL are complete.  Please either add an event for when ALL are completed, or give us the option to have the grid send ALL CRUD operations to the server at one time.

Introduce an expression builder for specifying filtering the grid by custom rules. Similar to the RadGrid for Silverlight: http://demos.telerik.com/silverlight/#ExpressionEditor/FilteringGridView

Basically, when a boolean is placed in a grid, it displays true/false.  It would be better to show it either checked/unchecked.  There is a template to be used, but it has a couple of issues:
1. you need to define it for every check box
2. It is either enabled or disabled.  Ideally, it should be disabled in display mode, and enabled in edit mode.

We want events for expand/collapse groups in Grid, similar to the existing events for details.
This events will helps us for personalize some funcionalitys.

Thanks.

in grid when data are grouped and the group is collapsed groupFooterTemplate data should be still visible

Please consider adding the following basic grid grouping features into future updates:
- default group collapse/expand config: .CollapseGroups(true)
- auto hide grouped columns config: .HideGroupColumns(true)

Very often in grids we want command buttons disabled (or not even visible) depending upon model data, such as Delete not being available if the data has certain values set. Something like:

columns.Command(commands => {
  commands.Edit();
  commands.Destroy().VisibleIf(model => model.IsPosted)
  });

Using HtmlAttributes would be acceptable if it was easy to access the model. I'm currently achieving this by using a client template and rendering the buttons myself, but this seems overly complex for what is a simple occurance.

We are needing the virtual scrolling to work for our project and also need the detail rows working. The explaination of the problem was described on the forums here:
http://www.kendoui.com/forums/ui/grid/hidden-detail-row-when-using-detail-template-and-virtual-scrolling.aspx

When I bind a change event to the grid it will fire each time I click on the row, even if it is the same row.  So the selected row is not actually changing, but the event keeps firing anyways.  The same thing happens if I programmatically select the row using the select method.

I would rather the change event only fire when when the selection has actually changed rather than on every re-selection.

Otherwise, you might as well call the event "onSelect" rather than "change".

For extra points, it would be cool if the event received a reference to the previous row that was selected.

Similar to http://demos.telerik.com/aspnet-ajax/grid/examples/dataediting/alleditablecolumns/defaultcs.aspx or http://demos.devexpress.com/ASPxGridViewDemos/GridEditing/EditForm.aspx

It would be nice if its possible to slide threw the pages in a grid by using a slider in the footer.