It would be nice to be able to assign a unique ID to each column to go along with the column's title. Makes it easier to find a column by it's ID instead of trying to find it by title. Especially if the user has reordered the columns.

Probelm: 

Filterable Grid with a cell-type "number".
When this Cell will be filtered for the "number"-cell with the value "20", the value will automatically change to "20,00".
In order to remove this behaviour, you will have to asign a whole new kendo ui numeric textbox. (which is a littlebit too much).

Wouldn't it be better to asign a new cell option in the grid to avoid this problem?

Please implement more Grid-parity features for the TreeList widget. Unfortunately, the filter for enum values shows only a numeric up/down on a TreeList. Change this behavior to match the Grid filter: here, enum values are shown with their textual representation (and, if provided, the [Display] attribute is evaluated).

When converting a WebForms app with KendoUI controls in it to MVC, I used the MVC wrappers.  One thing that became very apparent is the lack of support for client templates.  For example, a bound column has a ClientTemplate, but no ClientEditorTemplate or ClientHeaderTemplate. Because of this, extra JS code has to be written to manually manipulate different parts of the grid.  Considering the MVC Wrappers render out the same HTML/JavaScript as the pure JavaScript counterpart, it would be EXTREMELY helpful if client templates were made available anywhere a server-side template exists.

We can add option for No filter in filter selection , Is consumes less space then other

today we need to loop through all rows in the Grid to do something in a row. On Telerik Extensions we had the OnRowDataBound event which we had the current row to do something. 

Currently, binding to typed datasets is only supported after dataset is cast to its untyped version (typedDataset as DataSet).

This dictates using strings for columns declaration of Grid instead of lambdas:
  .Columns(columns =>  {columns.Bound("Name");})
and not 
  .Columns(columns =>  {columns.Bound(x => x.Name);})

It might be very useful if Grid will support binding to typed datasets directly.

Currently Jun 2014, when saving new data on hierarchy (parent/child) grid, there is no possible way to save the header data, get the pk of the header and pass the pk to child data and save the child data. 

I suggest to add a feature to auto save both parent and child data when user click save button when creating new data.
Basically do ajax save for the parent, on success pass header's pk to do ajax save for child.

The documentation wrongly says that the grid will perform all server operations of paging, sorting, grouping, and aggregating whether bound to an iQueryable interface or a DataTable (http://docs.telerik.com/kendo-ui/getting-started/using-kendo-with/aspnet-mvc/helpers/grid/faq).

It turns out, after an extensive support ticket, that the documentation is plainly wrong. I have been told that only the COUNT() aggregate is supported when doing server side operations and bound to a Grid.

My request is that this gap in functionality should be fixed so that server operations work for both iQueryable datasources and DataTables.

Just getting started with Kendo Grid - below is my VB.NET razor code (I know, I know) working against a System.Data.DataTable for a model. 

The DataTable contains columns in it where some of the ColumnNames have spaces. The web page successfully renders my table, but, it errors due to the Kendo's row template, it seems.

    Dim mainGrid = Html.Kendo().Grid(Model.MainTable) _
         .Name("Grid") _
         .Columns(Sub(cols)
                          cols.AutoGenerate(True)
                  End Sub) _
         .DataSource(Sub(dSource)
                             dSource.Ajax()
                     End Sub) _
        .Pageable() _
        .Sortable() _
        .Filterable()

There should be something to post multiple grids data to controller. which was possible with serialize in telerik.

Your HTML Helpers generate fairly simple HTML and javascript ... but its not easy to read because it is somewhat minified (at least it has no indentation). It would be nice to set a flag somewhere to enable a pretty print option. I assume you have something like that internally anyway?

Currently, you can accidentally click on the "X" when clicking on a spreadsheet  tab, which is very easy to do, and it instantly is deleted with no warning and no way to get it back.  

This is a serious problem for me, as I don't know of a workaround.  Suggestions:

1) Add a "Tab Deleted" event so that you can catch this and optionally cancel it.
2) Honor Workbook Protection in Excel so that you could prevent the tabs from being deleted.

Thanks,
Mark

Make DataSourceRequest  and MenuItem objects serializable to support sql server session management. My suggestion is to make all these type of objects serializable.

Buttons can be added to the toolbar as Enabled(true/false), it would be consistent to have the same option for Visible(true/false)

Currently the visibility can be changed via the API button.hide() or button.show(), however, not when initializing the toolbar using the MVC wrapper

Imagine situation that you have 10 separate solutions - different software. In each you use Kendo library. If you want to update to the latest version you need to update in each project separately. How would you resolve such a issue instead of updating only one common project? Please add such a functionality.

@(Html.Kendo().TabStrip().Name("dashboardTab")
    .HtmlAttributes(new {@class = "fullHeight"})

I need that css class applied at the outermost element rendered through the TabStrip. Otherwise there is no way to modify a controls appearance using css only without wrapping every single tabstrip in a container for the sole purpose of accessing it with css.

Using the MVC wrappers to style checkboxes and assign bindings works well except for the visible binding. the style is applied to the hidden input rather than the created styled label. 

When user click on Edit/Add call custom url. To this url automate pass the ID(or viewModel for ASP.NET MVC) of current record (null if it's new record). This url have to return partial view for edit(or add) form (like template).

Kendo UI Menu currently supports only mouse over on child/sub menu items.

Root items are configurable to open only if moust is clicked.

But actually child items also should have the same type of configuration.

In my organisation people simply clicking everytime on menu items, they dont wait for the mouse to open its child items. And when the child menu items opened they press mouse button by mistake and the menu gets closed that gets them irritating.