Enjoy components for every need: navigation and layout, data management and visualization, editing, interactivity and more. In our 11 years of aggressive product development including 3 major and up to 6 minor releases per year we have implemented, tested and optimized over 4,000 features in Telerik ASP.NET controls.

Complete Set of Features and Controls
Enjoy components for every need: navigation and layout, data management and visualization, editing, interactivity and more. In our 11 years of aggressive product development including 3 major and up to 6 minor releases per year we have implemented, tested and optimized over 4,000 features in Telerik ASP.NET controls.

Mobile Support and Responsiveness
No need to build a mobile version of your project since the web sites and apps built with Telerik ASP.NET controls work equally well on desktop and mobile devices.

Use the Page Layout Framework to build responsive ASP.NET applications
Leverage the adaptive, fluid, elastic and responsive capabilities featured in most controls to offer user experiences tailored to each end-user's device
Gain productivity since touch events are handled in the same manner as those triggered by a keyboard or a mouse
Get a better user experience with the two mobile skins especially designed for touch devices that come included in the suite

20 Built-In Professional Grade Skins
Give your applications a sleek, professional look by setting a single property. By applying one of the 20 professionally-designed skins that come with Telerik UI for ASP.NET AJAX, including two engineered with mobile devices in mind, you save design and front-end development time. No need to be a CSS wizard to create or customize the Telerik skins with our web-based Visual Style Builder.

Exceptional Performance and User Experience

We constantly optimize the performance of UI for ASP.NET AJAX to meet your end users expectations. This is why the controls:

Produce minimal and clean HTML and CSS
Minimize j@vascript by loading only whats needed
Reduce postbacks for a better user experience
Compress data transferred between browser and server (Pages, j@vascript, ViewState, JSON data, etc.)
Use built-in CDN support and CSS sprites to deliver content faster to end-users (Telerik covers all CDN costs for you)
Minimize memory usage and have robust code, free from memory leak

UI for ASP.NET MVC R3 2017 SP1

All components
NEW

    Fixed warnings over the XML documentation in the MVC components.

FIXED

    detailinit is always evaluated in vue wrapper
    Overlay distorts over disabled widgets in Chrome
    Escape calc() functions that use variables in less themes to prevent wrong compiling
    Kendo typings error using TypeScript 2.5.2 -> DataSourceTransportWithFunctionOperations

AutoComplete
FIXED

    Incorrect AutoComplete popup position
    fixedGroupTemplate not displayed in AutoComplete, ComboBox, DropDownList and MultiSelect with virtualization enabled
    Widget's dropdown auto-closes in Chrome when a preceding element's height is reduced
    DropDownList / ComboBox/ AutoComplete items filter is not cleared, when certain item was selected (base on search criteria) and minLength options is set
    AutoComplete, MultiSelect and ComboBox clearButton option can not be set via setOptions()

Calendar
FIXED

    Calendar selects wrong date range with Shift+click on multiselect
    disableDates is not applied for Calendar/DatePicker/DateTimePicker in MVVM

Chart
FIXED

    Tooltip is not shown after you leave the chart through the tooltip
    Chart treats a \n string in the data as a new line character
    Switching tooltip from shared to not shared is setting undesired inline style which affects the background color.
    "&" in various combinations causes HTML encoding issues in Chart

ComboBox
FIXED

    fixedGroupTemplate not displayed in AutoComplete, ComboBox, DropDownList and MultiSelect with virtualization enabled
    Widget's dropdown auto-closes in Chrome when a preceding element's height is reduced
    When using Grid custom editor, the Kendo Editable adds data-binding for the value for both the hidden and the visible inputs of the ComboBox.
    ComboBox setOptions applies dataTextField and dataValueField, but the widget shows the new fields as undefined
    DropDownList / ComboBox/ AutoComplete items filter is not cleared, when certain item was selected (base on search criteria) and minLength options is set
    AutoComplete, MultiSelect and ComboBox clearButton option can not be set via setOptions()

ContextMenu
FIXED

    Kendo Menu should implement the aria-haspopup attribute 

DateInput
FIXED

    Setting the date input as readonly sets disabled styles as well

DatePicker
FIXED

    disableDates is not applied for Calendar/DatePicker/DateTimePicker in MVVM
    DatePicker and Timepicker clear their value on blur if it is not completed.

DateTimePicker
FIXED

    disableDates is not applied for Calendar/DatePicker/DateTimePicker in MVVM
    DatePicker and Timepicker clear their value on blur if it is not completed.

Diagram
FIXED

    The edit popup of the Diagram is not visible when the Diagram is in modal Kendo UI Window.

Dialog
FIXED

    Exclude disabled elements from focusable elements sequence in Window and Dialog

Draggable
FIXED

    Error "Property 'target' does not exist on type 'DropTargetDropEvent'" on building Kendo UI typescript definitions with TypeScript 2.4

Drawing
FIXED

    The surface event handlers are triggered twice if passed in the options

DropDownList
FIXED

    AngularJS expressions in id attribute with curly brackets throws JS error
    Pressing Space closes DropDownList popup when filtering is enabled
    fixedGroupTemplate not displayed in AutoComplete, ComboBox, DropDownList and MultiSelect with virtualization enabled
    DropDownList dataItem() method returns 'null', while it should return 'undefined' when no item is selected
    Widget's dropdown auto-closes in Chrome when a preceding element's height is reduced
    DropDownList highlightFirst does not work, when the dataSource is changed (re-set with setDataSource).
    Large Navigatable and Selectable Grid requires multiple clicks to create a DropDownList editor
    DropDownList / ComboBox/ AutoComplete items filter is not cleared, when certain item was selected (base on search criteria) and minLength options is set
    DropDownList with MinFilterLength > 0 does not repopulate the full data list after filter has been triggered and an item has been selected

Editor
FIXED

    Lost focus from Inline Editor's content area when using dropdown tools
    Keyboard navigation through editor's text skips empty lines in IE and Edge
    Broken layout of Editor's File and Image browser dialogs with Default v2 and Bootstrap v4 themes
    Kendo loader does not hide after successfully deleting a file or deleting / creating a new folder in Editor's Insert file dialog

Grid
NEW

    Styled checkboxes now utilize id and for attributes

FIXED

    Grid endless scrolling doesn't work when multi-checkbox filter is used
    Grid column resizing does not work in Chrome when page is zoomed
    With enabled persistSelection, the selectedKeyNames method return items even if they are removed
    MVVM Grid missing schema.model.id
    If the ESC key is pressed when adding a new record in Grid via popup editor, a JavaScript error will be thrown
    Dirty indicator is not shown when editing nested fields
    Custom validation messages are not displayed in the Grid filter menu inputs
    Kendo UI Custom Download missing dependencies
    Angular1 Grid with checkbox selection does not provide the data for all selected rows in the change event
    Chrome scrolls when Grid is focused.
    The columns order in the Grid column menu is not changed after reordering only for the reordered column.
    The confirmation function does not work if the grid edit mode is set.
    When using Grid custom editor, the Kendo Editable adds data-binding for the value for both the hidden and the visible inputs of the ComboBox.
    Hierarchy grid should have area-expanded attributes
    Grid triggers change on k-grouping-row selection
    Add title attribute to Kendo UI Filter Menu filterable messages
    Clicking on the ColorPicker in editable cell closes the edit mode when navigatable is on
    Grid should restore horizontal scroll on filter
    Gird's Keyboard navigation fails for new records when there is grouping applied
    Large Navigatable and Selectable Grid requires multiple clicks to create a DropDownList editor
    The focused cell of the navigatable and non scrollable Grid is changed to the first cell after sorting.
    While exporting to Excel, the Grid's groupFooterTemplate does pass the e.field.group object
    .k-grid-edit-row class not removed
    Navigatable grid closes dirty empty cells on click in Edge
    Grid group row header is considered as newly selected row which is unexpected.
    Scrollable Grid header and content tables misaligned when tabbing through filter inputs in "row" filtering mode
    The page cannot be scrolled on touch devices with IE and Edge when the Grid is selectable.
    Scroll position of the Grid is set to top position after editing
    Sort indicator disappears when change page size of Grid.

ListBox
FIXED

    moveUp, moveDown and transferTo buttons should be disabled on item transfer via drag and drop
    When selecting some of the bottom items in a scrollable ListBox the focus is automatically push to the top(Only in Internet Explorer and Edge)
    Calling destroy on a Window with a ListBox inside throws a JavaScript error
    Initializing ListBox in PopUp template in Kendo UI Grid throws error on closing the popup
    ListBox Drag Clue inherits dragged item focus class

ListView
FIXED

    Unexpected scrolling up triggered in navigatable ListView

    Focus state is not applied for ListView

MVVM
FIXED

    MVVM Grid missing schema.model.id
    disableDates is not applied for Calendar/DatePicker/DateTimePicker in MVVM

Menu
FIXED

    RTL items' popups which overflow the left screen boundary are auto-closed after opening
    Kendo Menu should implement the aria-haspopup attribute
    A couple of menu popups stay open when navigating with right arrow and pressing enter key

MultiSelect
FIXED

    Select/Deselect events are not fired for multiple selection
    Change event is not fired when multiple items are selected
    Unexpected focusing of MultiSelect's first item on dropdown opening, instead of focusing the item selected last
    fixedGroupTemplate not displayed in AutoComplete, ComboBox, DropDownList and MultiSelect with virtualization enabled
    Widget's dropdown auto-closes in Chrome when a preceding element's height is reduced
    MultiSelect's clear button does not clear all selected items in single tag mode
    MultiSelect does not clear selected value(s) from the list when filtered, and autoClose is false
    AutoComplete, MultiSelect and ComboBox clearButton option can not be set via setOptions()
    Multiselect popup assumes wrong position after filtering, if popup.position = "bottom"
    Deselecting an item via the dropdown no longer works after maxSelectedItems is reached and autoClose is set to false
    Placeholder does not change when setOptions is used.
    Navigating through items in dropdown using Up/Down Arrow is not working with virtualization
    Changing MultiSelect item's selection with Ctrl+Space adds spaces in widget's input in IE and Edge
    Selecting multiple items through keyboard does not respect MultiSelect's maxSelectedItems property

Pager
FIXED

    Input in Pager is higher than dropdown in Fiori theme

PanelBar
FIXED

    PanelBar "expanded: true" not working on load with content and contentUrl

PdfProcessing
FIXED

    NullReferenceException is thrown when importing Widget without parent FormField.
    Field Name is modified when importing and exporting PDF with PdfFormatProvider.

Router
FIXED

    Router performs unexpected encoding

Scheduler
FIXED

    Wrong values for Scheduler event resources when multiple resources are filtered and selected
    Scheduler's navigate event does not fire when you navigate to a different date with the keyboard
    Scheduler's Export PDF button is not rendered (mobile: phone)
    Unexpected horizontal scrollbar on RTL Scheduler caused by the current time line width

Spreadsheet
NEW

    Improvements to Spreadsheet toolbar keyboard support

FIXED

    Custom formatting is not preserved after value change
    Spreadsheet validation pop-up appears twice
    Spreadsheet formula reference is not updated properly
    Spreadsheet PDF export adds extra column to the exported area, when right border is set for the last active column
    Spreadsheet AutoFill increments dates even if a single cell is selected and dragged
    Spreadsheet does not export empty spaces added before existing cell content (xlsx client export)
    Wrong number rounding when cell format is applied to a formula
    Spreadsheet applies blank values when attempting to autoFill disabled cells

TabStrip
FIXED

    Overwritten TabStrip background color by Dialog styles
    Associated aria-acrivedescendant ID attribute applied to multiple tabs after a disabled tab is focused
    Not updated Tabs' aria-disabled attribute
    Wrong color of dragged TabStrip tab text in Material theme

TimePicker
FIXED

    DatePicker and Timepicker clear their value on blur if it is not completed.

Tooltip
FIXED

    Kendo TypeScript typings mismatch in TooltipOptions

TreeList
FIXED

    The TreeList is duplicating items on expand if loaded property of the node is set to false.
    Export to excel with aggregates / footer templates

TreeView
FIXED

    Disabled Treeview Node gets checked/unchecked when checking/unchecking parent

Validator
FIXED

    Custom validation messages are not displayed in the Grid filter menu inputs

Window
FIXED

    JS error is thrown when both dialog and window are used in page
    Exclude disabled elements from focusable elements sequence in Window and Dialog

Wrappers (ASP.NET MVC): DropDownList
FIXED

    DropDownList does not return any results when filter is cleared

Wrappers (ASP.NET MVC): Gantt
FIXED

    When editing Start time of Gantt Task, the End time is altered by the difference between UTC and the client timezone

Wrappers (ASP.NET MVC): Grid
FIXED

    Fix customizing grid filter operators in ASP.NET Core
    Expand/collapse operations of grouping functionality throw js error with server biding.

Wrappers (ASP.NET MVC): ListBox
FIXED

    Placing ListBox in PopUp editor template in MVC Grid throws error
    ListBox draggable settings are not serialized correctly for MVC wrappers

Wrappers (ASP.NET MVC): Menu
FIXED

    Menu, PanelBar and TabStrip do not apply aria-disabled attribute initially
    Wrong classes for Menu and PanelBar items for the arrow icons in MVC and Core

Wrappers (ASP.NET MVC): PanelBar
FIXED

    Menu, PanelBar and TabStrip do not apply aria-disabled attribute initially
    Wrong classes for Menu and PanelBar items for the arrow icons in MVC and Core

Wrappers (ASP.NET MVC): TabStrip
FIXED

    Menu, PanelBar and TabStrip do not apply aria-disabled attribute initially  

Only for V.I.P