I want to tool inside Kendo Editor, when on click of any Image / Video it should open a inline editor in which i can perform following functions,

1. Replace
2. Change Alignment
3. Change Captions
4. Alternate Text
5. Resize

Here are the few sample links which i am refering too (you need to click on image for getting the image editor),
https://ckeditor.com/docs/ckeditor5/latest/examples/builds/classic-editor.html

Although that the ListBox is similar to the MultiSelect, at the moment it does not have such model binding, because it is also comparable with the data management widgets and for the initial release of the ListBox our developers decided to consider the model binding only if there is demand for it. With that in mind, you could create a feature request in our public portal for that feature: 

http://www.telerik.com/forums/listbox-bind-to-model-view

The Grid should allow switching between case sensitive and case insensitive filtering.

Cancellation token is widely supported in entity framework. And it has big benefits for long running queries to allow cancel them.

ToDataSourceResultAsync methods should support passing cancellation token as a parameter.

I would like to be able to create .bindBoolColumn. I do not want extend the column itself.  I already have extensions for that.

Something like this:

GridBoundColumnBuilder<TModel> BoundBoolean<TValue>(Expression<Func<TModel, TValue>> expression)

public  GridBoundColumnBuilder<TModel> BoundBool<TValue>(Expression<Func<TModel, TValue>> expression)

{

     column = *place create column code here*;
     column.Width(90);
     column.clientTemplate("customtemplate");

}

Currently the ForeignKey column expects data to be loaded in it initially. This could be either local data or remote data.

For scenarios that involve using large data, it would be helpful if we can have more flexibility with the way data is loaded in the column's editor (e.g., DropDownList). For example, we want to use cascading ForeignKey editors. Once a selection is made in the first dropdown, the second cascades and is loaded with the respective data. This is not viable at the moment, because the data must be supplied to the ForeignKey column initially. If an empty collection is passed initially:

columns.ForeignKey(c => c.Field1, new List<SelectListItem>(), "Value", "Text").Width(100);

and the dropdown is then loaded with data after the Grid's Edit popup opens, the ForeignKey column will display the DataFieldValue as text, because no initial data has been provided.

An option to load data on demand would be a welcome performance enhancement.

The NumericTextBox renders two input elements. In a Grid inline editing scenario: https://demos.telerik.com/aspnet-mvc/grid/editing-inline  one of inputs of the NumericTextBox editor does not render a title and there is no label for the inputs. This causes an error for missing form element label in Html static analysis (Wave).

One way for this to be avoided could be using aria-labelledby attribute instead of title. The same aria-labelledby value will be assigned to both inputs pointing to a span or div that contains the input value. This way both inputs will have label and won't trigger the missing label error.

Add the ability to display aggregates of non grouped columns in the group header.

Add Japanese to the supported cultures and provide the respective resources with localized messages:

https://docs.telerik.com/aspnet-mvc/globalization/localization#setting-the-current-language

The same feature which is available for Angular:
https://www.telerik.com/kendo-angular-ui/components/treeview/load-more-button/

Load More button functionality for the entire TreeView:

Right now the Telerik UI MVC NuGet package is a 30 MB package that installs not just the DLL, but a lot of boilerplate JavaScript and CSS. I prefer to acquire the necessary content via Bower, so I can only install what I need.

Currently, after every upgrade I have to wait for the package to install, then delete all of the unused content files. It would be nice if you supplied an "assembly-only" package, moving the content into an optional package that users who still need it could install. It would reduce upgrade time substantially, as well as offer less chance for a mistake.

It would be nice if the MVC Definition of the Editor HtmlHelper (ImageBrowser and FileBrowser) provides the Path setting as demonstrated for the Kendo UI variation:
https://docs.telerik.com/kendo-ui/api/javascript/ui/editor/configuration/imagebrowser.path

Just like posted here (and declined) : http://kendoui-feedback.telerik.com/forums/127393-kendo-ui-feedback/suggestions/3844570-serialization-support-of-datasourcerequest-and-app

I would like to see a portable separate assembly that : 
- can be referenced both on ASP.NET MVC side and WCF server side.
- A DataSourceRequest and DataSourceResult class that serialize well in both SOAP and REST WCF.

Referencing Kendo from the Application server side also requires references to System.Web.Mvc, Razor pages, ... and others that shouldn't be necessary.

Row's hover effect should be optional and it could be enabled/disabled in grid's configuration, the same as we add Selectable, Navigatable, Sortable, Editable, etc., functionalities to grid. This could apply to odd/even coloring too. Should no need to do hacks to achieve this.

In the Kendo UI for jQuery Grid, fields that are not editable are displayed as text (no input elements) in the Grid's popup editor. The MVC Grid displays all fields that are present in the view model it is bound to in its popup editor.

Implement an option to configure the editable fields, so that the behavior of the MVC Grid matches that of its Kendo UI counterpart.

Today, when we use IEnumerable<dynamic> type as the model for the kendo grid, the grid is generated fine, but the javascript serialization fails when we pass the datasource to the GridBuilder constructor.
This results in empty grid client side, because the datasource is empty, even if the html initially generated contains the values.

This behavior comes from a problem with the JavaScriptSerializer (also present in the JSon() function of MVC)