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

UI for WinForms Q1 2016 SP1 (version 2016.1.216)

RadVirtualGrid
NEW

    AutoSizeColumnsMode functionality to stretch the columns according to the control size.
    Save/Load layout serialization API.
    Cell and row validation.
    Right to left support.
    Design time improvements and Smart Tag functionality.

FIXED

    Incorrect filter options in the filter row.

CHANGED

    Removed the WaitingImage property from the VirtualGridIndentCellElement class. Instead, use the RowWaitingImage property of VirtualGridTableElement.
    Removed the ParentRowOffset property from the VirtualGridTableElement class. This property should only be used internally.
    Removed the setter of the ActiveEditor property of RadVirtualGridElement. 
    Changed the event handler type of the CellValidating event in RadVirtualGrid and RadVirtualGridElement.

RadDiagram
NEW

    Added over 50 new predefined shapes and connections in the diagram toolbox.

RadGroupBox
NEW

    Added support for mnemonics.

RadWordsProcessing
NEW

    RTF format provider: Improved compatibility with WordPad 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).

RadSpreadProcessing
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.

RadPdfProcessing
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.

RadDropDownButton
FIXED

    Design time copy-paste leads to improperly distributed items collection.

RadCheckBox
FIXED

    The disable state of checked item is not correct in Office2013Light theme.

RadTreeView
FIXED

    Exception when the keyboard search is enabled and there is no selected nodes.

RadTextBox
FIXED

    Application hands when setting the Focus on Enter event.

RadSpellChecker
FIXED

    SpellCheckAllAtOnceForm should not have an empty space at the top compared to SpellCheckWordByWordForm.
    The first suggested change is not automatically shown in the "Change To" text box in SpellCheckAllAtOnceForm although the Change button is enabled.

RadScheduler
FIXED

    RadSchedulerReminder shows incorrect Due In time when the appointment is updated.

RadRichTextEditor
FIXED

    Custom fonts are not embedded to the exported file when using PdfFormatProvider.
    RichTextEditorRibbonBar - memory leak when associating the ribbon bar with different instances of RadRichTextEditor.
    Symbols with locally set font family are displayed incorrectly.
    Text with the symbol font is not saved correctly.
    The text forecolor and highlighting is invalid when the exported rtf document is opened in Wordpad.

RadRibbonBar
FIXED

    RadButtonElement's text is blurred in disabled state when the UseCompatibleTextRendering property is set to false.

RadPropertyGrid
FIXED

    Resizing cursor does not show correctly in Right to Left mode.
    Issue with MSAA compatibility and accessibility objects.

RadPdfViewer
FIXED

    OutOfMemoryException when printing large files.
    "Parameter is not valid" exception when loading several times a document.

RadPanorama
FIXED

    Cannot copy/paste at design time RadPanorama from one application to another.

RadGridView
FIXED

    Exception when binding to entities collection and specifying DataMember under Windows XP.
    The command column button in the new row is slightly larger than the cell itself.
    After printing a grid with a ColumnGroupsViewDefinition and a horizontal scroll bar, the scroll bars disappears.
    The GridViewNewRowInfo is in modified state when the DefaultValuesNeeded event is used.
    Exception when a modal dialog is shown in the CellValidating event and the grid is scrolled.
    KeyNotFoundException when dragging a UserControl containing a grid to the form.
    Exception when the grid is inside a split panel which is re-sized while the grid is in edit mode.
    The printed header cells have an incorrect text alignment when the grid is in right-to-left mode.
    Setting the template AutoExpandGroups property at design time breaks the designer. 
    NullReferenceException when entering edit mode in a grid placed in a UserControl hosted on a ToolWindow.
    Exception when the VisualStudio2012Light theme is used and the BestFitColumns method is called.
    Rows with greater size than the page height are not printed.
    The HasChildRows property always returns true in self-reference hierarchy although the child row does not have any child rows.
    The vertical scrollbar of the grid is not updated when paging is used and rows on the last page are less than the page size.
    Exception when expanding a group and the grid is grouped by combobox column.
    Slow performance when selecting multiple cells.
    Adding groups in code does not work for hierarchy grid.
    NullReferenceException when moving the horizontal scrollbar while the new row is in edit mode and the current column is GridViewCheckBoxColumn
    The CurrentRowChanged event is not fired after repopulating the grid with the same DataSource.
    When the control is added at design time a default TableViewDefinition instance is assigned. Then the CreateCell and CreateRowInfo events does not fire.
    The layout is invalid when column group is pinned before the ColumnGroupsViewDefinition is assigned to the grid.
    DataException when canceling add new row operation.
    There is no property for disabling the context menu of the row header cells.
    When the grid is grouped the checkbox in the header of a GridViewCheckBoxColumn is not updated if all the cells in all child rows for all groups in this column are true.

RadForm
FIXED

    The AcceptButton Click event is fired when another button is focused and Enter is pressed.

RadDock
NEW

    Added IsToolWindowActive state for the buttons in the ToolWindow caption element.

FIXED

    When placed in a MS Panel, RadDock does not respect the Anchor property for child controls that are copy-pasted at design time

RadChartView
FIXED

    The legend is not updated when one is removing data points from the series.
    LineSeries with a single data point having a DateTime type results in NullReferenceException if the axis has a LabelFormat.

RadAutoCompleteBox
FIXED

    ArgumentNullException when appending text in the form's constructor.

RadTextBoxControl
FIXED

    ArgumentNullException when appending text in the form's constructor.

Demo Application
FIXED

    An exception is thrown when open RichTextEditor`s examples in trial version.

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[b] Only for V.I.P

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