Telerik UI for WinForms includes more than 90 user interface controls you can use to fulfill the most demanding desktop or tablet application requirements. All-way customizable GridView, Form, Chart, Scheduler, RichTextBox and other essential controls enable you to build any Line of Business or Modern application in less time while staying under budget.

All Telerik Windows Forms controls come with full theme support. You can use any of the 19 included themes (Windows 8, Office 2013, Visual Studio 2012), or build new ones with the intuitive and unique Visual Style Builder tool. The built-in themes help you effortlessly deliver sleek and consistent, next-generation user experiences across your desktop and tablet applications.

Despite having animations and rich visual effects, Telerik UI for WinForms controls feature excellent performance aimed at helping developers like you improve your productivity and deliver better and faster applications in less time.
UI for WinForms enables easy development of complex, high-performing apps by:

Minimizing the amount of required repainting and layout rearrangements
Empowering all data controls with a data engine guaranteeing blazing-fast data loading and updates
Allowing you to exercise fine-grained control over the component's appearance and behavior using simple CSS-like syntax
Setting attractive defaults for controls supplied by the Telerik Presentation Framework
Providing easy integration with CAB and its underlying infrastructure



Changelog:

UI for WinForms Q1 2015 (version 2015.1.224)

February 25, 2015
RadWordsProcessing
NEW

    RTF format provider: Support for Import/export of multilevel list containing list level without number text format. 
    Export of RadFlowDocument to PDF, using the Pdf format provider class. 
    Exposed Section.PageNumberingSettings property. 
    Introduced support for vertical section alignment. 
    Introduced RadFlowDocumentEditor.InsertSection() method. 
    Introduced support for "type" attribute of HTML list. 

FIXED

    Importing style from HTML does not base the created style on 'Normal' style.
    Document containing list without explicitly specified multilevel type cannot be imported. 
    The input file stream fails to convert to RadFlowDocument when a field has multiple general formatting switches. 

RadSpreadProcessing
NEW

    Introduced support for Grouping which allows creation of documents with grouped rows and columns. 
    Introduced support for Data Validation which allows restricting the type of data or the values that users enter into a cell. 

FIXED

    AutoFit does not fit exactly to text when Normal style is modified. 
    When CanInsert() method is called with 0 as ItemsCount exception is thrown. 
    Cell value formats are not applied in CSV import. 

RadPdfProcessing
NEW

    Introduced support for generating PDF/A compliant PDF documents. 
    Added support for export of document info: Author, Title, etc. 
    Introduced PreferredWidth property for setting table cells width. 
    Introduced support for Lists. 
    Introduced LayoutType property in Table class. 
    Added InsertBlock method in RadFixedDocumentEditor that allows inserting custom implementation of IBlockElement interface while generating flow content. 
    Implemented support for adding hyperlinks with a destination through Block editor. 

FIXED

    Block InsertText method overload does not respect its FontStyle and FontWeight arguments. 
    Splitting empty Block returns not empty Block. 
    When drawing element with and without clipping they are exported in wrong order. 
    When drawing nested tables the text in the inner table is drawn out of the table. 
    Merged cell's content overlaps the borders of a table that is split to two pages. 
    Encrypted documents could not be opened in Adobe Reader.  
    PdfReal values should not be exported in exponential format as it is not supported according to PDF specification. 

CHANGED

    RadFixedDocumentEditor's TableProperties are removed.

Zip Library
FIXED

    The default constructor forces the ZipArchive to dispose the passed stream when it is already disposed. 

CHANGED

    ZipPackage is marked as Obsolete. Use ZipArchive instead.

Visual Style Builder
NEW

    An option to change the default filter for the save image dialog when saving an image from repository items.

FIXED

    "Save image as" option does not always allow you to save the image.

RadTrackBar
FIXED

    The scroll event is fired when value is changed through code.

RadPanel
FIXED

    When the AutoSize property is set to true the panel size is 0 despite that it has some elements in it.

Themes
FIXED

    The restore button of an MDI child form has a maximize icon in ControlDefault, Office2010Blue and Office2010Black.
    RadGridView does not display correct BackColor initially for the GridIndentCellElement when apply Office2007Silver theme.
    RadScrollBar - the thumb image should be changed with one corresponding to Windows 7, rather than Office 2010.
    RadToggleButton - the disabled state is not correct in the Office2013Light theme.

RadTreeView
NEW

    Possibility to set the auto-expand delay on drag-drop.

FIXED

    ArgumentOutOfRangeException when deleting nodes with same text in a sorted treeview
    Auto expand on hover does not work while dragging a node.
    Inability to auto-scroll while dragging a node.

RadTextBoxControl
FIXED

    User cannot type more than one polish char -"ą". Additionally, the whole text is cleared.

RadTextBox
NEW

    Select all text with Ctrl+A in MultiLine mode.

RadSpellChecker
FIXED

    Right clicking an incorrect word does not show the popup on the correct location with two monitors environment.
    When RadTextBoxControl contains words followed by colon or semi-colon, the red underline indicating errors appears.
    Spell check as you type does not respect the ShowAllCapitalLettersWord property.
    Single letter in parentheses is underlined with a red line with spell as you type in the RadTextBoxControl

RadScheduler
FIXED

    Missing appointments in PrintPreview dialog.

RadRichTextEditor
FIXED

    When changing the text alignment the control is not invalidated.
    When the user types in RadRichTextEditor the Access Key (mnemonic) is activated.
    Exception when the ShowSpellCheckingDialog method is called for the second time.
    Pasting link, copied from outlook causes exception.
    The size in the selection mini toolbar is not correct.

RadRibbonBar
FIXED

    ApplicationMenu button is not positioned correctly when the system buttons are hidden in Office2013Light theme.
    When there is a button in a tab or group it stays marked when the mouse down (right mouse button) occurs in the same control, but the mouse is not released over it.
    When the ribbon is collapsed and tab visibility is changed the ribbon is expanded for a second.

RadRadialGauge
FIXED

    The gallery is not loaded when the user's machine contains assemblies whose FullName cannot be retrieved.

RadPropertyGrid
FIXED

    NullReferenceException when using the up/down arrows in the PropertyGridSpinEditor and clicking over the text box.
    A collection property cannot be edited if it does not have setter.
    Sorting 6000 items takes a lot of time.

RadPivotFieldList
FIXED

    NullReferenceException when clicking over the +/- repeat buttons in an item in the Row Labels.

RadPivotGrid
FIXED

    Exporting with collapsed rows/columns causes exception.
    Performance issue when using ExpandAll/CollapseAll options in the context menu.

RadPdfViewer
FIXED

    When the fonts are not embedded and are not installed on the machine the text that uses them is not displayed.

RadPanorama
FIXED

    Dropping a tile from one group to another when the group has 1 row and the tile has rowspan 2 exception is thrown.

RadPageView
NEW

    Allow RadPageViewItems to accept other RadElements. Currently, they are not arranged.

FIXED

    Current page header at the top of the RadPageView in ExplorerBar view mode is not displayed.

RadMultiColumnComboBox
FIXED

    The dropdown is not sized correctly when there is only one record.
    SelectedIndex/SelectedValue is reset when the control loses focus and there is a filter applied which had filtered all the available rows.

Forms and Dialogs
FIXED

    When RadMessageBox is shown one cannot drag the popup dialog when clicked on the right half of the title bar.

RadMenu
FIXED

    Setting the Font of the control does not take effect when Office2010Blue theme is applied.

RadMaskedEditBox
FIXED

    Entering a value in a GridViewMaskBoxColumn with MaskType e-mail leads to an exception.
    The text property does not work correctly.

RadListView
FIXED

    NullReferenceException when dragging a custom DetailListViewVisualItem.
    DropHint is missing in Windows7 theme.
    When swapping items in the BindingList, the RadListView is not refreshed.
    Performance issue when the control is in unbound mode and grouping is used.

RadGridView
NEW

    Ability to move the column with the expanders to different position then the first one.

FIXED

    The ArrowPrimitive in the header cell overlaps the header text in Office2007Silver theme.
    There is a memory leak when the excel-like filtering is used.
    HtmlExporter one cannot add html code to the cell value when it is exported.
    ValueChanging and ValueChanged events are fired when the Escape key is pressed in the active editor for the GridViewMaskBoxColumn.
    CheckBoxColumn - when the data source contains null values and the header checkbox is shown exception is thrown. 
    NullReference exception when using message box in CellValueChanged event.
    Allow users to input decimal numbers by directly starting with the decimal separator.
    The header cell checkbox is not updated when the grid data source is changed.
    NullReference exception in GridCheckBoxHeaderCellElement when adding a filter to a bound grid with cleared columns.
    Missing TableElement.RowDragHint in multiple themes.
    Null reference exception when disposing an orphaned self-reference grid.
    When the GridColorPickerElement.ReadOnly property is set to true, the editor is initialized with the last selected color despite the cell value.
    When the search functionality is used in combination with filtering NullReferenceException is thrown.
    Some cells are not selected when dragging quickly through them.
    When RadTextBoxControlElement is used as permanent editor in the grid there is NulllReference exception, caused by the IME support.
    When an unicode control character is inserted via the search row context menu ArgumentException is thrown.
    GridViewCheckBoxColumn - the header cell checkbox is automatically checked when the user is filtering.
    Columns are resized when the PrintPreview dialog is shown and grid is in RightToLeft mode.
    GridViewComboboxColumn NullReferenceException on CellValueChanged.

RadGanttView
FIXED

    When the vertical scroll is shown and one moves an item the link lines are not drawn correctly.
    ArgumentOutOfRange exception when scrolling the graphical view.
    When the ReadOnly property is set to true, the user can still move the summary task with the mouse.

Telerik Presentation Framework
NEW

    DesignTimeTextEditor support for adding new line with Enter key while in dropdown, without opening the MarkUpEditor.

FIXED

    RadRibbonFormBehavior dialog shows when you import a new image for a RadButtonElement at design time.
    Setting the ForeColor of root RadMenuItem is not taken into consideration
    RadImageButtonElement - ImageHovered and ImageClicked properties are not taken into consideration.
    Changing the ForeColor property of the BorderPrimitive of the RadStatusStripElement has no effect.

RadDropDownList
FIXED

    Calling the Focus method when DropDownStyle = DropDown does not select the entire text in the inner text box.
    The description text is not clearly visible for the selected item with the VisualStudio2012Dark theme.
    The border is not properly reset in Windows8 theme when the user hovers the control. 

RadDock
NEW

    The possibility to choose which windows to be serialized via the SaveToXml method.
    The possibility to add custom elements to the TabStripItem.
    ActiveMDIChild property.
    Re-dock ability from floating to document.
    AutoHideSize is now serialized by the save/load layout functionality.

FIXED

    Design time error when starting debug mode after modification in design time.
    Absolute size is not taken into consideration when a window state is changed with the context menu.
    Exception when disposing a closed dialog with RadDock on it.
    Anchoring issue with controls in a form, hosted in RadDock.
    When in RTL the QuickNavigator shows the Top-left instead of Top-Right corner of windows.
    ToolWindow with anchored controls inside, changes child controls position when autohiding/showing.
    Dock with more than one ToolWindow (auto-hidden), when displaying a hidden window its caption is wrong for a fraction of time.
    Issue with loading layout from xml related to disposing mechanism in RadDock.
    Layout issues with autohide ToolWindow content.
    Xml serialization does not work in scenarios with inherited ToolWindow.
    Databinding issues with ToolWindows.
    Double click on ToolWindow caption is not working properly in design-time.
    BindingContext changes for ToolWindow hosted controls when state changes from Dock to AutoHide.
    Docking Manager execssive redrawing of floating window.
    RadDock does not preserve the original window order when using Save/LoadLayout methods.
    RadDock does not preserve the hidden state of a tool window when using LoadLayout method.
    RadMenu shortcuts do not work if form is MDI child.
    RadDock with two nested docks, setting the DocumentTabsAlignment of the other dock automatically sets the same on the inner one.
    Problem with resizing of right-docked auto-hide tool window.
    Load layout issue when using HostWindows.
    OnActivated is fired before onload in forms which have RadDock instances.
    Activated event is not fired on hosted MDI forms.
    AutoHideSize is not considered properly in all cases.
    Save/Load layout does not store/restore correctly ToolWindows in a hidden FloatingForm after restart.
    Docking a floated window does not remove it from the FloatingWindows collection.
    AutoHidden window with property grid is hidden if it loses focus while the editor is active.
    Save/Load layout does not work as expected for HostWindows.
    Load layout does not restore correctly floating ToolWindow.
    AutoHiding a ToolWindow, then hiding and showing it does not restore its DockState to AutoHide.
    Closing the main Form should close the MdiChildren of the dock.
    Docking a ToolWindow with other windows inside, docks only the current window.
    Having floating window with docked windows inside and saving the layout does not allow you to load correct layout later.
    When the MDI form is closed right after another MDI the second form's host window remains visible.

RadDateTimePicker
FIXED

    When the user clears the whole date, the text is not cleared and the null date appears.
    The AutoSelectNextPart property is reset after the control is bound to a BindingSource.

RadDataEntry
FIXED

    Modified property value is not persisted when the editor is RadMaskedEditBox and the property is Nullable<int>.

RadColorBox
NEW

    Ability to disable the saving of the custom colors - set the SaveCustomColors property to false.

FIXED

    The Text property is not replaced with the localized name of the selected color when using ColorDialogLocalizationProvider.

RadChartView
NEW

    Funnel series. 
    Scatter area series.
    HLC (high-low-close) series..
    Waterfall series.
    Funnel series.
    Range, Range Spline and Range Bar series.
    Marked zones.
    Annotations.
    Export to image.
    Possibility to enter minimum/maximum width for Bars in BarSeries.
    Ability to inverse the order of the values on ordered chart axes.
    A member property to the pie series that allows binding the legend title.
    Ability to rotate the labels of chart series - set the LabelRotationAngle property of the series.
    Ability to alignin the vertical axes of two charts one above the other.
    TrackBall for multiple axes.
    RightToLeft support for DrillDownNavigator.
    Ability to show negative values under the 0 point of the area.
    Allowed different theming for the points of PointSeries and LineSeries.
    Mouse aware zooming for PanZoomController.
    Scroll bar in legend section.

FIXED

    Vertical Stripes go out of the chart area when PanZoom is used.
    If two series are combined in Stack100 mode and both have value 0.0 in one category an exception is thrown.
    If one sets the GapLength of a chart axis to 0 the chart layouts bar series with inconsistent space between bars.
    AxisLabelElement overlaps the axis when chart's area has Horizontal orientation.
    PieSeries do not show the legend properly, the values are not initialized.
    Changing the view using DrillDownController and re-adding series will not update the legend.
    ChartTrackballController does not display correctly the vertical line across the chart plot area when the ShowLegend property is set to true.
    When the category is bound to a field that can be parsed to a number the axis labels are measured incorrectly. 
    Legend items are not cleared when the underlying data source is refilled.
    Axis labels are not drawn to the correct locations on the plot area.
    Rotated labels appear in the legend area when using a RangeSelector.
    The labels are not aligned properly on the vertical axis.
    If you run a form with a chart view with a zoom controller on it you cannot start to zoom in and out until you click on the chart.
    Lasso controller does not zoom properly the vertical axis. 
    Line and area series are not rendered correctly when the CartesianArea.Orientation is Horizontal.
    Labels are not rendered when the HorizontalLocation is set to right.
    Adding data points with DateTime category in the range of milliseconds results in wrong axis labels.
    Setting the DesiredTickCount property changes the axis minimum or maximum.
    The vertical axis labels are not drawn when the orientation of the chart is set to horizontal.

CHANGED

    The constructor of ChartLegendElement now takes the RadChartElement as a parameter instead of an ILegendInfoProvider.

Demo Application
FIXED

    In the first look example for the RadDataEntry one cannot properly add new items.
    the C#/VB code is not visible for DocumentProcessing, RichTextEditor and Panorama examples

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