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.

I'd like to suggest a TagCloud just like the one in Telerik Ajax offering.

I am using Kendo Spreadsheet for ASP.Net MVC and using it inside the Kendo window.

I need to customize the spreadsheet toolbar to add a custom button (Save) option for the users to save the spreadsheet.

I could see the reference for toolbar customization using Kendo UIJavascript , but not with MVC. Please suggest how to add a custom button in spreadsheet toolbar using MVC.

The MVC Grid uses the MVC EditorTemplates and currently does not support setting a JavaScript function name for the column's "editor" property.
Please consider adding the ability to set the javascript name for the column's editor.

http://www.kendoui.com/forums/kendo-ui-complete-for-asp-net-mvc/grid/binding-to-custom-editor-for-a-grid-column-i-e-drop-down-list.aspx 

When using the LoadContentFrom() in a tab inside a Tabstrip, the tab content does not get loaded until it become visible. 
Please consider making the Kendo Window behave like the TabStrip when a window use the LoadContentFrom() method, loading the content only when it become visible.

Currently on WidgetBuilderBase there is an HtmlAttributes method that clears any current HTML attributes before adding the new ones. It would be good if there was a separate method called maybe AddAttributes (or something similar) that would allow the addition of HTML attributes without clearing any existing ones.

instead of using the text parameter to apply filter in server side, use the filter parameter of the DataSourceRequest/DataSourceResult object for the comboBox.

<meta http-equiv="Content-Security-Policy" content="default-src 'self'; img-src 'self'; script-src 'self'; style-src 'self' unsafe-inline; font-src 'self' data:;" />

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.

Add all of the supported Grid column properties to the GridColumnSettings class. Currently, only some of the options are added, which creates limitations when the LoadSettings option is used:

http://demos.telerik.com/aspnet-mvc/grid/columnsettings

When you export a sheet to Excel the Sheet is export as not-protected.  If there are cells that are locked then the user can edit them.  It would be really useful if you could specify tha a sheet were protected and when the sheet is exported it would be protected with a password.

In the Text Editor, I would like to suggest an upgrade to "Insert hyperlink". It would be great if you would split out the prefix from the address and have a selector that allows the user to choose website, email, or phone.

Selector: Website/Email/Phone
Address:sales@kendoui.com
Text: Kendo UI
Tooltip: Click Here
Open Link in new window: No

Results:
<a href="http://www.kendoui.com">Kendo UI</a>
<a href="mailto:sales@kendoui.com">Kendo UI</a>
<a href="tel:8883652779">Kendo UI</a>
I believe your Ajax editor does this already, so can it please be added to the MVC one? 
Also, we have just moved from a different editor to Telerik's, and the previous one did have this feature. Thanks!

Currently, if a developer wants to include only those files required for the extensions that are actually used in a project, they have to either figure the requirements out manually, or use the Custom Download tool at http://www.telerik.com/download/custom-download.

It would make the Visual Studio extension much more useful if the same functionality was available there; instead of dumping all of the JS and CSS files into the project, allow the developer to select the wrappers to include, and only include the CSS (and relevant assets) for the selected theme.

Current Telerik MVC wizards for converting a project or creating a new Telerik project adds all possible Telerik files to the solution and also new Views under the shared folder.

As it is now, I include about FIVE Telerik script and css files in my views, but my project includes about 600 Telerik files in the /content and /script folders together. That is not ok and makes for very large and unnecessary complex solutions containing mostly unused code that makes the project difficult to overlook for an outside developer. In our company we like the solutions to only include files that are actually used and not alot of dead code.

Also, it is difficult to know which files that is possible to delete since there might be internal dependencies between kendo files.

It would be great to be given some choices in the wizards, like would you like to install everything or answer a few questions to do a custom installation. Things that are unnecessary are for example to include localization and globalization support for All possible languages even though the user specifies only German support, and also to include the files for all possible themes even though the user specifies the Metro theme. Then you could add a change project settings wizard where the theme or language or other settings could be changed. The wizard would simply change the included .js and .css files. Also the *.cshtml files in the Shared folder should be optional to install, not always included. Those are just examples, it would be great to customize the installations as much as possible.

It seems that the default behavior of the control is to set autocomplete="off".  When setting using the .HtmlAttributes method int he MVC wrappers and setting autocomplete to something else this setting is ignored.

I propose that the HtmlAttributes method should adhere to all settings that are passed into it.

Example using the MVC Wrappers:

html.Kendo().MaskedTextBoxFor(e).Mask(mask).HtmlAttributes(new { @class = "form-control", autocomplete = "tel-national" })

The "CreateDataSourceResult" function verifies if the given DataSourceRequest "Sorts" list is empty and if the IQueryable provider is Entity Framework. If both are true, it adds a default OrderBy to the query on the first sortable property. This makes sense as EF must be ordered before skipping items.

The following statement checks the given DataSourceRequest and IQueryable:

if (!sort.Any() && queryable.Provider.IsEntityFrameworkProvider())
{...}

This leads to unwanted behavior if the query is already sorted on the server and the corresponding SortDescriptor is removed from the "Sorts" list. This is needed if we want to sort on a viewmodel property that doesn't exist on the EF model.

An additional check should be done on IQueryable to see if it is already ordered to avoid replacing the existing OrderBy with a default one.

if (!sort.Any() && queryable.Provider.IsEntityFrameworkProvider() && queryable.Expression.Type != typeof(IOrderedQueryable<TModel>))
{...}

The Upgrade Wizard should provide an option to only update currently used skins rather than adding all skins each time a project is upgraded.

You recently added a checkbox column feature to the grid control. However, you cannot control at the record level if that checkbox should be accessible. Every checkbox is selectable regardless of the data it represents. It would be nice to disable (or hide) the checkbox in the column based on some criteria in the record. 

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).