What's new


Release History

UI for ASP.NET AJAX Q1 2012 SP1 (version 2012.1.411)

April 10, 2012

Common for all controls

  • Improved: jQuery version updated to 1.7.2
  • Fixed: Potential memory leak condition in IE8 or below
  • Fixed: Adding RadAjaxManager through the controls SmartTag throws exception

Installer and Visual Studio Extensions

  • Improved: All product installers' disk cost estimation
  • Fixed: Inconsistency in the toolbox groups naming
  • Fixed: AJAX Upgrade Wizard breaks Sitefinity Projects
  • Fixed: Scenario wizard fails when attempt to add a scenario through the Add New Item context menu
  • Fixed: Upgrade Wizard fails when there are missing tags in the web.config file


  • Fixed: "Estimated time" indicator of the RadProgressArea always shows 00:00:00, when uploading with FileApi
  • Fixed: MaxJsonLength could not be set to the serializer used by the AsyncUploadHandler
  • Fixed: RadProgressArea is diplaying "UploadingFiles"


  • Fixed: RadCalendar throws javascript error in IE with installed DivX
  • Fixed: RadCalendar's selected date is different in IE and other browsers after mutliple dates were selected and multiple selection gets disabled
  • Fixed: RadTimePicker's TimeView object does not refresh its visial selected date when date input value is cleared
  • Fixed: RadDatePicker throws exception when JavaScript is disabled and the user submits text in wrong format into the DateInput
  • Fixed: The width of RadDatePicker is not applied in IE Compatibility Mode, when a date is set from code behind


  • Fixed: The client-side object of the RadColorPicker is not created when it is placed in an inactive tab of TabContainer and it is set with PaletteModes="HSB"
  • Fixed: When in HSV and HSB modes the ColorPicker values can be dragged to -1 and 101/361 values
  • Fixed: RadColorPicker popup is positioned incorrectly in a scrollable container
  • Fixed: RadColorPicker KeepInScreenBounds would show up such that the palette tabs may stay hidden at the bottom of the page
  • Fixed: RadColorPicker palette popup is not positioned properly when it is set with ShowIcon="true" and it is placed at the bottom of a page


  • Fixed: When autocomplete is enabled for the RadComboBox (MarkFirstMatch=True, AllowCustomText=False, EmptyMessage="value"), the first item is duplicated when pressing TAB after selecting a second item
  • Fixed: JavaScript error is thrown when the RadComboBox is in Simple Rendering mode and its repaint method is invoked.
  • Fixed: RadComboBox client-side filtering to search through encoded HTML


  • Added: Enable privacy-enhanced mode option for YouTube videos in Insert External Video dialog
  • Fixed: When the ToolBarMode property is set to RibbonBar the borders of the editor's tools holder are hidden in Firefox
  • Fixed: All characters within style attributes are converted to lower case by the ConvertToXhtml filter
  • Fixed: DocumentManager removes the link placed above the current selection
  • Fixed: Editor Cell Properties StyleBuilder bug in IE8
  • Fixed: FormatBlock command does not strip unnecessary BR elements
  • Fixed: Initial enter does not move the cursor to the next line in IE8 when NewLineMode is DIV
  • Fixed: Insert hyperlink creates a new set of tags in Chrome and Firefox when editing an existing anchor
  • Fixed: Pasting lists from MS Word removes the anchors
  • Fixed: Problems with bullet creation when the previous sibling is an UL or OL element
  • Fixed: Shift+Enter shortcut does not work correctly in Safari
  • Fixed: Spellcheck Suggestions pop-up placed incorrectly in Chrome when ContentAreaMode is Div
  • Fixed: Table wizard does not work when heading rows is greater than zero
  • Fixed: The standalone table related buttons are enabled when the editor is not focused and break the editor when ContentAreaMode='Div'
  • Fixed: ApplyClass strips the selected image in Chrome
  • Fixed: Paragraph tag causes double breaks in RadEditor
  • Fixed: RadEditor color palette is missing in style builder dialog
  • Fixed: “Remove Align” does not work in Chrome
  • Fixed: Add Comment feature works only for the last editor on page
  • Fixed: RadFileExplorer in RadEditor's FileBrowser dialogs is not localizable


  • Fixed: FilterTextBox content is removed when paging through the filtered file items
  • Fixed: JavaScript error is thrown when ViewPaths and InitialPath are incorrect or missing
  • Fixed: MinimumValue should be smaller than MaximumValue error in Chrome after uploading an image
  • Fixed: Dialogs are not displayed in RTL direction mode
  • Fixed: After deleting folder its parent is not selected
  • Fixed: The content of the just deleted folder is displayed in a new folder with the same name and location created immediatly after the old folder deletion
  • Fixed: Deleted images are not cleared from cache
  • Fixed: Current item could not be selected on single click after upload of an already existing file
  • Fixed: RadFileExplorer custom content provider – Up folder item does not work and is displayed for the root folder
  • Fixed: Problem with determining if a FileExplorer item is Directory or File
  • Fixed: RadFileExplorer FileExtension Icon in Opera


  • Fixed: RadFilter with "postback on blur" makes an infinite recursion when the filter input is in SingleInputRendering mode
  • Fixed: RadFilter changeFilterFunction client-side method throws an error
  • Fixed: JavaScript error when postback on blur is enabled and expression is added


  • Fixed: RadTextBox width changes on hover when decorated with RadFormDecorator
  • Fixed: Width unifying for input type=image should be prevented
  • Fixed: The AjaxControlToolkit throws an error when clearing handlers from a checkbox that is decorated from the RadFormDecorator


  • Improved: RadGrid KeyboardNavigation + MultiRowSelection mimics file explorer behaviour
  • Improved: Meaningful exception is thrown when trying to select multiple items and AllowMultiRowSelection="false"
  • Fixed: When sorting a column, the arrows for asc and desc sorting appear together
  • Fixed: RadGrid appearance breaks in hierarchy mode when all the columns from a parent table are hidden using the header context menu
  • Fixed: RadGrid edit form closes during Update command when the command is canceled and set e.Item.Edit=true
  • Fixed: RadGrid design-time Editor closes itself if OpenAccessDataSource controls is used and you click on the MasterTableView editor
  • Fixed: RadGrid filtering with Entity Framework breaks when there are null values in the datasource
  • Fixed: RadGrid groups state is not persisted correctly when GroupLoadMode client
  • Fixed: RadGrid fires Delete command when a edit form input text control is focused and the delete key is pressed with keyboard navigation enabled
  • Fixed: RadGrid starts row selection on a right click
  • Fixed: Expand/Collapse CSS class does not change in IE6 when HierarchyLoadMode="Client" with FormDecorator
  • Fixed: Issue with items drag and drop
  • Fixed: JavaScript error when keyboard navigation is enabled and AllowRowSelect = false
  • Fixed: JavaScript error when RadGrid left arrow is pressed in edit mode and keyboard navigation is enabled
  • Fixed: Expand\collapse is not working when HierarchyLoadMode="ServerBind" and keyboard navigation is enabled
  • Fixed: NoRecordsTemplate does not show when RadGrid is bound client-side
  • Fixed: RadGrid allignment issue with static headers in WebKit browsers
  • Fixed: RadGrid automatically adds CellSelectionMode="None" when generating the schema from the datasource design-time
  • Fixed: GridClientSelectColumn does notr work well on iPad when scrolling is enabled
  • Fixed: RadGrid designer does not persist DataNavigateURLfields property of the HyperLinkColumn
  • Fixed: RadGrid does not sort enum values properly
  • Fixed: Groups expand/collapse does not work properly when GroupLoadMode="Client" with hierarchy expanded
  • Fixed: GridHyperLinkColumn, GridImageColumn, and GridAttachmentColumn set wrong DataType
  • Fixed: Clicking on an item causes the page to be scrolled up to the top in IE when keyboard navigation is enabled
  • Fixed: RadGrid multi-selection with [Shift]+click breaks when calling dataBind() for a second time after selecting
  • Fixed: RadGrid resizing and reordering do not work in Opera after scrolling
  • Fixed: Selection is wrong when keyboard navigation is enabled and AllowMultiRowSelection=true
  • Fixed: GridHyperLinkColumn renders redundant empty space when its ImageUrl property is set
  • Fixed: JavaScript error is thrown upon cell selection when Display="false" for a column
  • Fixed: An error is thrown when more than two GroupByFields are added in RadGrid
  • Fixed: RadGrid.MasterTableView.ExpandCollapseColumn's Visible and Display properties do not work when set in code


  • Fixed: PixelFormat, i.e. bpp, of the edited image is different from the original image when applying Crop and Resize
  • Fixed: Problem with positioning of RadImageEditor's tool dialogs
  • Fixed: Editing transparent GIF removes the transparency
  • Fixed: RadImageEditor throws an exception when used in web applications with Session disabled


  • Fixed: Auto postback does not work for [Enter] key when the value is not changed for the RadNumericTextBox
  • Fixed: Invalid value of RadDateInput is not properly cleared on the client when EnableSingleInputRendering="true"
  • Fixed: RadDatePicker is causing unnecessary blur for its DateInput when focused
  • Fixed: RadInput controls in grid filtering context menu should be 160 pixels wide
  • Fixed: Form AutoFill in Google Chrome does not work properly for RadInput controls
  • Fixed: In IE9 RadDateInput's value is not properly displyed when Enabled="false" and EnableSingleInputRendering="true"
  • Fixed: In Internet Explorer focusing hangs in recursion when SetFocusOnError="true" for several RequiredFieldValidators that validates RadInputs
  • Fixed: Next day is selected when using RadTimePicker that has MinDate set to 11PM on the current day
  • Fixed: Qurks Mode issues with single input rendering
  • Fixed: RadNumericTextBox's span is not shown when value is enterred, [Enter] key is pressed and the control is blurred (only when the decimal separator is ",")
  • Fixed: RadNumericTextBox's value overflows the input area when spin buttons are shown and horizontal align is set to right
  • Fixed: RadTextBox does not update its styles correctly when using set_value after empty message was shown
  • Fixed: Unable to type properly in RadMaskedTextBox after its text has been selected in Safari
  • Fixed: Validation for RadMaskedTextBox is fired on blur even though the text is not changed
  • Fixed: When ShowButton="true", the text entered in RadInput is not aligned correctly in IE8
  • Fixed: When using RadInputManager, the Value of inputs gets cleared after focusing if the ca ret was in the address bar of Google Chrome
  • Fixed: The Width of the RadTextBox should be automatially set to Auto when Columns property is used
  • Fixed: JavaScript error is thrown in IE7 when Enabled="false" for RadInput and the input is clicked
  • Fixed: When RadMaskedTextBox is disabled (Enabled="false") the vertical window scroll bar of IE9 is displayed
  • Fixed: Styles of RadDateInput are not changed properly if the control is ReadOnly and focused on Init and set_value() is used to change its value
  • Fixed: JavaScript error is thrown on initialize of RadInput in IE7/8
  • Fixed: The width of RadDatePicker is not applied in IE Compatibility Mode, when a date is set from code behind
  • Fixed: DefaultButton is not working when [Enter] is hit in the RadTextBox with single input rendering enabled


  • Added: Sort method for ordering Items based on a property/attribute value by using a lambda expression
  • Added: set_cssClass() and get_cssClass() methods to RadListBoxItem class
  • Fixed: A Design-time error when clicking on 'Add RadListBox' in RadListBox's SmartTag
  • Fixed: RadListBox client-side filtering does not search through items with encoded HTML as text
  • Fixed: When the TransferMode of the RadListBox is set to Move, the AllowTransferDuplicates property is ignored allowing duplicates to be transferred
  • Fixed: Attributes set on items are not preserved when items are moved from one RadListBox to another using transfer mode "Copy" (client-side)
  • Fixed: Client-side reorder using drag and drop does not work when alert message is invoked in the OnClientDropping event handler
  • Fixed: Disabled RadListBoxItem can be selected when SelectionMode="Multiple" and [Shift] key is pressed
  • Fixed: During server-side event "Reordering" Offset property does not work properly
  • Fixed: Issue with MarkFirstMatches - matching fails for the last item if there are too many items starting with the same letter
  • Fixed: It is possible to transfer disabled items when server-side transfer is used
  • Fixed: JavaScript error is thrown when using LoadOnDemand and press a key in the listbox
  • Fixed: OnClientSelectedIndexChanged/ing is always fired on subsequent clicks of the same item
  • Fixed: RadTextTox in ItemTemplate does not get focus when drag and drop turned on
  • Fixed: Up and Down arrows select disabled items
  • Fixed: When a textbox is in item template of RadListBox with SelectionMode set to Multiple, the [Space] button is not working
  • Fixed: ASP:DropDownList does not work in IE9 and Chrome when placed inside the ItemTemplate of RadListBox with EnableDragAndDrop=true
  • Fixed: When you bulk insert CHECKED items via the insertItems() client-side method the items are rendered twice on the page, even though the size of the items collection is correct
  • Fixed: When multiple selection is on and you drag to select items, disabled items also get selected


  • Fixed: RadListView client-side sorting does not work as expected in IE8 or below


  • Fixed: When removing item client-side its DOM properties are not disposed and when added again its children are not initialized properly


  • Added: Expand/collapse for groups
  • Fixed: New IDs are set to the template controls after the first postback
  • Fixed: Drop events are no fired when master page is used


  • Fixed: Events of the controls inside RadPanelBarItem do not fire after moving the item
  • Fixed: When PanelBarItem's Visible property is set to false and then back to true, the item looses its expanded state
  • Fixed: RadPanelBar ExpandHandle does not appear when addidng child items to a child item of RadPanelBarItem client-side


  • Fixed: When mouse scroll is used for scrolling, the rotator sticks
  • Fixed: The client-side itemShown event gets fired before the indices of the rotator items have been populated
  • Fixed: set_currentItemIndex method is not working properly when the RotatorType property is set to SlideShow and the SlideShowAnimation-Type property is CrossFade
  • Fixed: The scrolling behavior of RadRotator when ScrollDirection="Down" is set and it does not have enough items
  • Fixed: The scrolling of a RadRotator in a ButtonsOver mode when all of its items are added on the client
  • Fixed: In webkit browsers the up/down/left/right arrows can be used to scroll the content of the RadRotator out of its viewport
  • Fixed: RadRotator PauseOnMouseOver does not resume animation when the mouse leaves the items through the container div


  • Improved: New design-time wizards
  • Added: Slot selection for week and month views grouped by resource/date
  • Improved: Recurrence editor validation for numeric textboxes.
  • Fixed: Editing recurrent series in WebService mode populates the Advanced Form with the wrong values
  • Fixed: Appoinments style does not change to readonly when RadScheduler is in WebService binding mode and its ReadOnly property is set to true
  • Fixed: An error is thrown in the advanced form when the recurrence checkbox is checked and no radio button is selected (Hourly, Weekly etc.) with web service binding
  • Fixed: ModalDialog is not positioned properly when RadScheduler is with OverflowBehavior="Scroll" and it's higher
  • Fixed: RadScheduler RecurrenceEditor does not add new recurrence rule to an ocurrence from the first time when bound to WebService
  • Fixed: RadScheduler RecurrenceEditor not resetting properly the exceptions when bound to WebService
  • Fixed: ReadOnly property of the views does not work at all in Web Service binding mode and does not stop insert in server-side binding mode
  • Fixed: WebServiceAppointmentController.CreateRecurrenceException calls the Update and Insert methods of the provider with an ISchedulerInfo that is always SchedulerInfo even though a custom class is used, e.g. MySchedulerInfo:SchedulerInfo
  • Fixed: Issue in the ExactTimeRendering of the RadScheduler in TimelineView when part of the appointment is hidden in the beginning of the visible slots
  • Fixed: JavaScript error is thrown upon start dragging in month view of RadScheduler when gouping is used
  • Fixed: RadScheduler does not calculate start/end time of the day correctly when SelectedDate is in the transition week from winter to summer time
  • Fixed: RadScheduler with WebService binding resetting exceptions removes exception appointments but does not remove the exceptions to the recurrence rule
  • Fixed: Right clicking on the inline edit/insert form opens a time slot context menu
  • Fixed: Setting WeekView-ReadOnly to true makes DayView read-only too
  • Fixed: RadScheduler server-side error when trying to open the advanced form in some specific environments
  • Changed: The EnableCustomTimeZones property is renamed to EnableTimeZonesEditing so that it better describes its purpose


  • Fixed: Embedding data from the server-side in the ToolTip property of a RadSliderItem


  • Fixed: RadSocialShare Custom icons styles


  • Fixed: RadSplitter text color styles for nested splitters with different skins
  • Fixed: RadSplitter Black Skin slide content background color


  • Fixed: RadStyleSheetManager modifies the paths to the images in external CSS files


  • Fixed: An issue with unnecessary added iFrame inside the div when creating PageView client-side
  • Fixed: Focusing a tab (with access key for example) to select it under IE
  • Fixed: When removing a tab client-side its DOM properties are not disposed
  • Fixed: When the ReorderTabsOnSelect property is set to True and an ajax request is performed, the tabs are reordered
  • Fixed: Wrong tab is selected after client-side reordering and postback
  • Fixed: When you hide a tab using the client-side set_visible() method, the siblings have wrong CSS classes applied


  • Fixed: The raising of the client-side events 'itemClicking' and 'itemClicked' when the items are loaded via web service
  • Fixed: RadTagCloud's ItemClick server-side event is not fired under IE6


  • Fixed: Shadows do not work correctly for separate RadToolTip which is not created through the RadToolTipManager


  • Improved: RadTreeList Export to PDF Item/Cell Decoration
  • Added: Worksheet-specific options in RadTreeList Excel export
  • Added: Support for expand/collapse images in ExpandCollapseCellStyle for RadTreeList Excel export
  • Fixed: TreeList issues with reordering and resizing
  • Fixed: RadTreeList "No records to display" text shows twice when AllowScroll and UseStaticHeaders are sett to true
  • Fixed: RadTreeList resizing does not preserve columns' width after postback when called through the API
  • Fixed: RadTreeList multi-column sorting does not work.


  • Added: EnableNodeTextHtmlEncoding property which indicates whether to Html encode the text of nodes


  • Fixed: In IE7 when EnableFileInputSkinning is set to false the first input is not visible


  • Fixed: Server-side RadPrompt throws a JavaScript error for some values set for initialValue parameter
  • Fixed: When OnClientClose is set and Tools->Generate local resources is used in design time, Visual Studio incorrectly adds the obsolete OnClientCallbackFunction property in the markup


  • Fixed: The escaping of a string passed to a RadXmlHttpPanel via its client-side method set_value()

New features & Roadmap

Have a feature request?

Post your feedback via the ASP.NET AJAX Feedback Portal.

What's new across all Telerik products?

See the updates feed

Getting Started Section Wavy Background

Next Steps

Launch demos

See Telerik UI for ASP.NET AJAX in action and check out how much it can do out-of-the-box.

Compare pricing

Check out the offers. Purchase an individual suite, or treat yourself to one of our bundles.

Download Free Trial

Try Telerik UI for ASP.NET AJAX with dedicated technical support.