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 leaks

UI for ASP.NET AJAX R2 2017 SP1 (version 2017.2.621)

Common
NEW

    Security Improvements
    jQuery 3 compatibility improvements

AsyncUpload
NEW

    Flash and Silverlight modules are not fetched in the browser when DisablePlugins=true

Button
FIXED

    Incorrect font icon for the rbSearch class

ComboBox
FIXED

    RadCombobox is missing bgr color in Silk in Classic render mode

Editor
FIXED

    The Edit Content and other toolbar buttons are untouchable on Android 7 Chrome

Filter
FIXED

    Visual glitches in some skins of RadFilter

FormDecorator
FIXED

    RenderMode=Classic with Silk skin renders the backgrounds of the decorated textboxes/textarea elements in gray

ImageButton
FIXED

    RadImageButton throws "Input string was not in a correct format" in IE when zoomed

Input
NEW

    Add insertText and removeText methods for RadMaskedTextBox

Menu
FIXED

    The selected menu item is gray instead of yellow when RadMenu has a Glow skin in Classic render mode

PanelBar
FIXED

    Incorrect arrow color in Classic PanelBar with Metro and MetroTouch skins

PdfProcessing
FIXED

    The PKCS#1 signature handler always determines the document as modified
    Widget annotations cannot be printed when the PDF is exported with PdfProcessing

PivotGrid
FIXED

    In lightweight, only sort icon triggers sorting, instead of the whole field, making it impossible to sort after natural sorting is applied.

RibbonBar
FIXED

    Additional white border added to the RadRibbonbar buttons in Windows7 skin

SocialShare
FIXED

    SendEmail dialog textareas are too wide and fall on the next line under Chrome, when RadFormDecorator is present

TabStrip
FIXED

    The disabled tabs do nРѕt look disabled in Classic render mode

TreeView
FIXED

    When editing node in Chrome clicking on node blurs the node focusing the TreeView

Window
FIXED

    Misplaced titlebar after autosizing when in RTL mode and RenderMode=Classic
    Wrong width of the RadAlert/ConfirmPrompt buttons wrapper in Material

Only for V.I.P