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 what’s 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 Q1 2016 SP1 (version 2016.1.225)

ASP.NET AJAX
FIXED

    javascript error from RadTabStrip is thrown, when ScrollChildren property is enabled and the control with its MultiPage is placed within a RadWindow

CHANGED

    Font (font, font-size, font-family, font-weight, font-icon, font-style) removal from almost all skins - see this help article for more information

Common
FIXED

    Time part from Date value is lost when exporting to Xlsx format

Ajax
FIXED

    RadScriptBlock register scripts even if it is outside the updated area
    RadAjaxLoadingPanel does not have image with Material Skin

AsyncUpload
FIXED

    RadAsyncUpload's allowed files to be selected count is not properly updated when deleteFileInputAt() is used for removing a file and the MaxFileInputCount is set.
    deleteFileInputAt(0) doesn't work correctly when UploadedFilesRendering is set to BelowFileInput

AutoCompleteBox
FIXED

    RadAutoCompleteBox with Single SelectionMode does not trigger TextChanged event, when selection is performed with arrows and blur the control with Tab key
    Entry not added to the RadAutoCompleteBox if the entered text matches the returned result
    Unexpected racFocused class is added to disabled Token if clicked
    Wrong height of AutoCompleteBox scrollable dropdown in Material skin

Button
FIXED

    If you change only the left or the top distance of a button icon, the rest of the distances are changed as well when using Lightweight rendering

Calendar
FIXED

    Open Calendar popup icon should be centered

ComboBox
FIXED

    RadComboBox does not lose focus state, when another element on the page is focused
    RadComboBox ScreenBoundaryDetection does not take into consideration dropdown offset Y
    Moving toggle arrow of disabled Lightweight RadComboBox on click in IE
    RadComboBox quickly shows a list of the checked items (when they are all checked) and then applies the All items checked message
    RadComboBox EnableAutomaticLoadOnDemand doesn't work when DataSourceMode is set to DataReader. Invalid attempt to call FieldCount when reader is closed 

DataPager
FIXED

    RadDataPager SEO custom button url is not applied in Lightweight rendering

Diagram
FIXED

    Export to JSON functionality of RadDiagram does not return correct data after the beginning or the end of an existing connection is changed

Editor
NEW

    Improve the exporting of DOCX and RTF to support HTML images with relative URL

FIXED

    Insert Horizontal Rule produces invalid XHTML
    The content of RadEditor is not scrolled properly after paste
    Fix selected value inconsistency in the FontName command drop-down on select all

Filter
FIXED

    Using Contains in RadFilter with empty string throws an error

FormDecorator
NEW

    Implement primary buttons in RadFormDecorator

FIXED

    Width of decorated dropdownlists is smaller than the Width property for Lightweight rendering

Gantt
FIXED

    RadGantt error in Visual Studio Design time

Grid
NEW

    Improve localization for the filter options in Mobile rendering

FIXED

    Misalignment occurs in RadGrid when UseStaticHeader is set to true
    The filtering functionality of Mobile RadGrid does not work properly when filter by more than one option
    RadGrid with column groups throws exception when the control is not databound initially
    Hiding a column in a grouped grid in Lightweight rendering throws a javascript error in Internet Explorer
    Setting the CssClass property of the ExpandColumn TableCell does not add the class
    When RadGrid in Batch editing is bound to RadClientDataSource, saving deleted rows with enable Undo functionality does not clear the rgDeletedRow class, which prevents the editing of the rows (on the deleted indexes) afterwords
    RadGrid with grouping, frozen columns and Lightweight rendering has misalignment when scrolled to the end
    RadGrid client events OnRowDropping and OnRowDropped do not fire if item is dropped onto itself
    The dragging column item is not visible in Mobile render mode
    The ListBox is partially hidden in the Excel-like filtering demo
    Export does not work with Ajax-enabled RadGrid when the grid is placed in a UserControl with ID that contains an underscore
    Filtering does not work in RadGrid with Client-Side binding and mobile render mode
    Clear button is not visible in mobile filtering menu
    When setting EnableAllOptionInPagerComboBox to true and click the last page button a server error is thrown
    resizeToFit not working with dynamically added contents

HtmlChart
FIXED

    Axes in Radar and Polar series cannot be reversed
    RadHtmlChart properties inside Axes GridLines and Titles with Visible=false are not serialized

ImageEditor
FIXED

    ImageLoading event is fired multiple times
    Transparent background becomes black when saving non-animated GIF images

ImageGallery
FIXED

    RadImageGallery fullscreen mode overrides viewport meta tag set on page on IOS9
    ImageGalleryTemplateItems are not displayed correctly when having more than one item

Input
FIXED

    RadMaskedTextBox DisplayMask property does not work correctly
    onerror event fires on focus of the DateInput
    Width and Height of TextBox controls to be rendered in invariant culture

ListBox
FIXED

    Unable to reorder properly multiple RadListBoxItems through keyboard shortcut
    Inconsistent last item loaded in RadListBox load on demand scenario
    Keyboard support of RadListBox does not work, when EnableDragAndDrop property is set to true

Menu
NEW

    IMPROVE MenuItem HighlightPath method - change focused state to selected

FIXED

    Attributes added to a RadMenuItem are not rendered in the browser in Mobile render mode
    Material Skin RadMenu - wrong 'expand' arrow position
    Incorrect height of Lightweight RadMenu separator items
    RadContextMenu - wrong positioning when a Menu is opened after scrolling the page in Edge

Navigation
NEW

    Add public expandMenuButton and collapseMenuButton client methods for RadNavigaiton

FIXED

    Width property not working in RadNavigation
    Unable to show only 1 item on RadNavigation root group
    OnClientNodeMouseEnter event is fired for every RadNavigation on page

OrgChart
FIXED

    Cut OrgChartRenderedField Text in IE and Chrome when Material skin is selected
    Drop clue is shown when dragging OrgChartNodes expand/collapse arrows

PersistenceFramework
FIXED

    RadPersistenceFramework causes multiple assemblies to load as a result of the default XmlSerializer use

Rating
FIXED

    Disabled RadRating should not get focus

Rotator
FIXED

    Fix the behavior of the RadRotator in Carousel mode with more than 22 items
    Fix the initial state of the left or top control button of a Load On Demand RadRotator when 'WrapFrames is set to 'false'

Scheduler
FIXED

    javascript errors when RadScheduler is grouped by resources and no resources are bound (server-side binding)
    DateTimePickers in advanced form is RadScheduler are not properly sized in Bootrsrap skin
    javascript error thrown on Alt + O pressed if simple insert form is not opened
    javascript error thrown on Alt + S pressed if no insert/edit form is opened
    Nested controls inside Reminders dialog do not inherit Skin from the RadScheduler

SocialShare
FIXED

    Fix RadSocialShare's RadPinterestButton compatibility with https

Splitter
NEW

    Remove background color and text color of Panes in Lightweight Splitter

Spreadsheet
NEW

    Implemented client import from XSLS in RadSpreadsheet

TabStrip
FIXED

    RadTabStrip keeps the dragged tab and reorder arrows visible over а PageView with ContentUrl set even after mouse button is released

TileList
FIXED

    Dragged Tile position is wrong when the TileList is nested in absolutely positioned elements

ToolBar
FIXED

    ID property in the markup of ToolBarItem throws error
    Unable to add white space in RadToolBar input nested inside ItemTemplate

TreeList
FIXED

    Lightweight RadTreeList with client expand mode expands all items by default
    Expand/Collapse buttons of TreeList are broken when Expand Collapse Mode is Client or Combined
    javascript error is thrown when RadTreeList is opened in IE8

TreeView
FIXED

    RadTreeView parent node's expand/collapse icon is not removed after calling its clear() method
    RadTreeView OnClientKeyPressing does not fire when the TreeView is focused and a key is pressed

Window
FIXED

    Default OK button is not triggered for Lightweight Prompt dialog when Enter key is pressed

Wizard
FIXED

    Inconsistent transition between steps if AllowReturn=false is set for a step and OnNextButtonclick/OnPreviousButtonclick event handlers are subscribed
    Mobile RadWizard Cancel button handler is not triggered

PdfProcessing
FIXED

    InvalidCastException is thrown when importing PdfLiteralString with escaped characters
    Some glyphs are overlapped in the imported document since ShowTextArray operator does not respect FontSize and HorizontalScaling when positioning text fragments
    Import/export of document causes memory leak because FlateDecode does not dispose CompressedStream instances

SpreadProcessing
FIXED

    If more than one range is referred in Indirect function, returned value is 0, instead of Reference error
    Slow import of documents containing many UnionExpressions

WordsProcessing
NEW

    RTF format provider: Improved compatibility with WordPad and RichTextBox when exporting transparent colors

FIXED

    <li> element containing <p> is imported as two Paragraphs in a list instead of one when importing from HTML
    Child paragraphs of list level does not have the same left indentation as the list when importing from HTML
    NullReferenceException is thrown when 'sdt' content tag has a child which is not a 'p' (paragraph)

[/b]

[b] Only for V.I.P

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