ASP.NET Core MVC is a complete rewrite of the .NET framework, delivering exciting changes and expanding the reach of .NET apps. Here’s some of what’s new:

.NET Core and Visual Studio Code enable you to develop and deploy apps on any OS—Windows, Linux or Mac
Tag Helpers provide easier views creation and UI definition
Nuget, Bower and Gulp package managers and automation tools boost your productivity
Unified MVC and Web API programming model simplifies development

As usual, we at Progress strive to deliver tools leveraging the latest technologies, so that your apps are always modern. This is why we were the first vendor to deliver official ASP.NET Core MVC support in their UI components. Read on to see how Telerik UI for ASP.NET MVC leverages ASP.NET Core MVC features to speed up your development.

ASP.NET Core is now live and developers around the globe are highly excited to give it a spin. Now that it's released, more and more developers are about to start new or to migrate existing apps onto it. This means the need for beautiful and high quality UI components that run on the new Microsoft framework is increasingly vital.

What’s new in the Kendo UI MVC wrappers for ASP.NET Core?

Tag Helpers—we are following the ASP.NET Core specification and we have included Tag Helpers for some of the popular components: NumericTextBox, Button, Window, DatePicker and TimePicker. We plan to add more tag helpers in the next releases, but it will be awesome if you share feedback on exactly which components you'd like to define and configure through Tag Helpers.
New VS template—You can now use the new Telerik template to quickly setup and create a project for ASP.NET Core.
GitHub Demo app—The demo app is now obsolete and will be replaced by a brand new demo app for ASP.NET Core in the R3'16 release.

Cross-Platform Development and UI for ASP.NET MVC

Probably the most significant feature of ASP.NET Core MVC is the introduction of the new light and modular .NET Core runtime, which is OS-neutral. For the first time in .NET history, you can build applications and deploy them on Windows, Linux and Mac OSX devices. And on top of all that, it’s an open source solution so it’s free!

UI for ASP.NET MVC fully supports the .NET Core runtime, and helps you build beautiful responsive web experiences crossing the boundaries of the Windows world.

Visual Studio Code and UI for ASP.NET MVC
VS-Code

With ASP.NET Core MVC comes Visual Studio Code, a lightweight version of Visual Studio that can be used across platforms—Windows, Linux and Mac OSX. It blends a rich UI code editor with code assistance and navigation, along with integrated debugging experience.

UI for ASP.NET MVC integrates naturally with Visual Studio Code, making ASP.NET Core MVC app development a breeze on any platform.

Tag Helpers and UI for ASP.NET MVC

Tag Helpers are the new HTML-friendly way to create views and define UI in ASP.NET MVC applications. They are recommended as the better alternative to traditional MVC HTML helpers, while still allowing you to extend the elements with server MVC functionality. Tag Helpers are also much more “understandable” to front end developers and designers.

We are proud to announce that Telerik Tag Helpers are now available as part of our UI for ASP.NET MVC and include six of the most popular Kendo UI widgets: DatePicker, TimePicker, DataTimePicker, Button, Window and NumericTextBox.

Nuget, Bower and UI for ASP.NET MVC
Nuget and Bower

Popular package management and task automation solutions such as NuGet, Bower and Gulp are made first class citizens in ASP.NET Core MVC. That means every web developer can use Bower for client packages, NuGet for server packages and Grunt/Gulp for compilation, minification, etc., when building web apps.

UI for ASP.NET MVC takes advantage of these tools by providing a Bower feed for its client scripts, and a NuGet feed, hosted on our NuGet server, for its server wrappers implementation (see this help topic for details). Furthermore, you can build a custom script from the source using Grunt by following these steps.

Unified MVC and Web API Programming Model and UI for ASP.NET MVC

A prominent change in ASP.NET Core MVC is the unification and combination of MVC, Web API and Web Pages in a single programming model, which removes the overlap between the three separate frameworks. Moreover, the MVC and Web API controllers use the same Controller base class and routes.

The Telerik MVC product leverages this merge, which simplifies the development and streamlines the usage of MVC Web API architecture in .NET projects.

UI for ASP.NET Core R2 2017 SP1

NumericTextBox
FIXED

    NumericTextBox does not allow currency character to be pasted together with the numeric value

ComboBox
FIXED

    Top group header stays displayed, even when there are not matches.
    Loader is displayed in DropDownList/ComboBox when remote request is prevented on requestStart
    Cannot select Item with value 0 in ComboBox and DropdownList
    Mouse cursor automatically moved at the end of the text in the ComboBox input
    Incorrect dropdown position when the page is scrolled (IE) and rtl is enabled
    AutoWidth option not working as expected in some cases
    Dropdown height is incorrect when there is h* element in HeaderTemplate
    Widget doesn't keep caret position on typing

ToolBar
FIXED

    Toolbar's overflow button in RTL mode scrolls page to top under IE

Menu
FIXED

    Kendo Menu k-state-focused bug

Spreadsheet
NEW

    Data Validation dialog of the Spreadsheet needs labels / aria-labels to be associated with its input fields and drop-downs
    Insert hyperlink dialog of the Spreadsheet needs a label / aria-label to be associated with its input field
    "Add to current selection" filter option doesn't work in case there is a filter already applied

FIXED

    Spreadsheet destroy method does not terminate the widget completely.
    Change the icon of the Export button
    Missing Spreadsheet toolbar buttons localization
    Undo is not triggering the change event
    resize method does not resize the toolbar
    Cannot choose from all items when filtering is applied once

Chart
FIXED

    getAxis does not return axis in a custom visual handler during the initial rendering.
    Grouped Line Chart data disappears from 2017 R1
    Justified category axis could lead to missing dataItem in point tooltip template
    Line chart with invisible points fails to render
    Pie chart hangs browser on some values
    Hiding yAxis is leaving redundant addittional space in Chart
    JS error when clicking the first legend item in a grouped donut chart
    Toggling visibility of line series combined with 100% stacked bar series makes a flickering
    Grouped series are not shown after hiding the first series and changing the data source
    Series highlighting from legend should be consistent for overlapping line series with manual and default zIndex
    Radar chart is not properly resized

AutoComplete
FIXED

    The selectedDataItems method returns always only the last selected item
    Incorrect dropdown position when the page is scrolled (IE) and rtl is enabled
    AutoWidth option not working as expected in some cases

HierarchicalDataSource
FIXED

    HierarchicalDataSource filter not working with serverFiltering true
    "Maximum call stack size exceeded" error thrown by the HierarchicalDataSource

DropDownList
FIXED

    Loader is displayed in DropDownList/ComboBox when remote request is prevented on requestStart
    Cannot select Item with value 0 in ComboBox and DropdownList
    Filtering closes the keyboard in Android
    Incorrect dropdown position when the page is scrolled (IE) and rtl is enabled
    AutoWidth option not working as expected in some cases
    Dropdown height is incorrect when there is h* element in HeaderTemplate

DateInput
FIXED

    Disabled DateInput should not have hover style

Grid
NEW

    Multiple and Range selection with the Keyboard
    Implement selection checkbox column for grid widget
    Alternative UI for column sorting

FIXED

    When the Grid is with persistSelection the selectedKeyNames method will still return the selected IDs after the clearSelection metho is used.
    Wrong color in the grid column menu
    The DropDown used for chaning the Grid current page, is not closing on mobile devices when clicking outside of it.

MultiSelect
FIXED

    Incorrect dropdown position when the page is scrolled (IE) and rtl is enabled
    AutoWidth option not working as expected in some cases
    Dropdown height is incorrect when there is h* element in HeaderTemplate

Drawing
FIXED

    grid widget extension — drawDOM / pdf.saveAs — headers do not repeat when repeatHeaders true
    Path is not drawn correctly by Drawing API

Upload
FIXED

    Upload widget with custom template can never retry an upload

Diagram
NEW

    Style the Diagram with SASS-based themes

MaskedTextBox
FIXED

    Disabled MaskedTextbox should not have hover style

PivotGrid
FIXED

    PivotGrid renders some footer values as member values after collapse

TreeView
FIXED

    Correct insertAfter and insertBefore return value in API
    TreeView should mark all non-selected nodes with aria-selected false attribute

ThemeBuilder SASS
NEW

    Theme Builder - show/hide preview components Improvements 

FIXED

    Kendo Preview: Charts' appearance and preview layout issues

All components
NEW

    Kendo UI Scaffolder should use a new VS 2017 extensibility format

FIXED

    fix: Wrong color in the grid column menu
    DropDowns Popup appears in wrong position in IE in RTL mode when the page is scrolled
    kendo.support.browser miss 'edge' and 'mozilla' flags in TypeScript definitions
    support.placeholder misspelled in TypeScript definitions
    keys.NUMPAD_DOT missing in TypeScript definitions
    clearFileByUid typescript definition
    kendo.support.browser typescript definition is missing edge as an option
    Widget does not position popup element correctly in Windows 8 (touch enabled device)

Pager
NEW

    feat(pager): hide page list when clicking outside of it

FIXED

    The DropDown used for chaning the Grid current page, is not closing on mobile devices when clicking outside of it.

TreeList
FIXED

    TreeList column attributes are not applied in edit mode.

DatePicker
FIXED

    Maximum call stack size exceeded if en-US culture is used with DatePicker
    Kendo UI DatePicker and DateTimePicker MVVM initialization ignores data-week-number option

TimePicker
NEW

    Invalid state styles for TimePicker integrated with DateInput

FIXED

    TimePicker does not preserve the new value when dateInput is enabled

Scheduler
NEW

    The view() method is documented as void, but it returns an object

Gantt
FIXED

    Gantt always escapes HTML elements passed as part of its Header Templates

DateTimePicker
NEW

    Invalid state styles for DateTimePicker integrated with DateInput

FIXED

    Maximum call stack size exceeded if en-US culture is used with DatePicker
    Kendo UI DatePicker and DateTimePicker MVVM initialization ignores data-week-number option

Editor
NEW

    Allow customization of the columns of color picker tools' palette
    When the selection is in the begging of a non first list item and backspace is clicked, its content should be moved to the the previous one.

FIXED

    Bullet list wrong cursor position after deletion

Window
FIXED

    Focusing a textbox nested in Window does not highlight its text
    Incorrect navigation with Tab in Window
    k-window-content box-sizing changed between 2017 R1 and R2
    Window resizing does not work correctly when the widget is pinned and the page is scrolled
    Resizing doesn't work properly when Window is appended
    The pin/unpin icons are swapped in Window component

Only for V.I.P