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 R2 2016 (version 2016.2.503)

New Tool - Converter Tool (CTP)
The new Conversion Tool which aids the process of converting applications using standard Windows Forms controls to their Telerik UI for WinForms counterparts. The tool is based on the Roselyn compiler platform and greatly reduces the time needed to switch application using the standard controls to their Telerik UI for WinForms counterparts.

New Control - RadCardView
RadCardView is a data layout control which displays its fields in a card layout. Editing data filelds, fine-grain card template customization and data operations such as filtering, sorting and grouping are supported out of the box.

New Document Processing Library - SpreadStreamProcessing
This new library is delivered as new assembly (Telerik.Documents.SpreadsheetStreaming.dll) and its purpose is allowing creation of big spreadsheet documents and export them to the most common file formats (XLSX and CSV) with a great performance and minimal resources. To achieve its outstanding performance and low memory footprint, the library directly writes the necessary content in a stream without creating an object model for the whole document.

RadWaitingBar
NEW

    Seven new modern waiting style indicators including Windows 8 like circular waiting style
    Design-time gallery to choose waiting style and adjust its settings
    Functionality to associated RadWaitingBar with any Control with a single property setting (see AssociatedControl property)

FIXED

    Missing styles for the Dash waiting style in the Windows 8 theme.

CHANGED

    WaitingIndicatorsWidth property is removed. Use WaitingIndicatorSize instead.
    The Indicators collection is obsolete and will be removed in a future release. Use WaitingIndicators instead.

RadVirtualGrid now Official
FIXED

    Last column/row is clipped/missing when specifying column/row width with greater number of rows/columns.
    Multiple selection is cleared when opening the context menu.
    The SelectAll method does not work as expected.
    Reducing RowCount/ColumnCount while there are resized row/columns, results in invalid scroll area size.

RadGridView
FIXED

    Incorrect vertical scroll bar and selected row when scrolling quickly and the AutoSizeRows property is set to true.
    Find next/previous buttons do not navigate the results in the displayed order when grouping is applied and paging is enabled.
    Exception when a row is deleted in the CellValueChanged event.
    When the cell editor of MCCB column is initialized for the first time in the new row, it is populated with value, while it should be empty.
    Vertical scrollbar in the group panel is not visible when shrinking the grid.
    Hiding columns from the MasterTemplate by using the PropertyBuilder does not affect the grid at design time.
    The new row is not added when the grid loses the focus and the current cell is read only.
    BestFitColumns does not measure cells with bold font correctly.
    Header check-box is not updated when the data bound item is updated.
    Exception when free form date time parsing functionality is used and the cell is changed with the right key.
    Incorrect grid navigation when pressing Tab key in the new row placed at the bottom of the grid and the last visible column is read-only.
    All cells are measured when the grid is filtered and there is no data rows visible.
    Summary rows are not affected when the InvalidateRow method is called.
    Crash in Property Builder while deleting and adding a column in ColumnGroupsViewDefinition.
    NullReferenceException when one is adding new row and the data object does not have a parameterless public constructor.
    Application hangs when grouping via UI and a ColumnGroupsViewDefinition is applied.
    CompositeFilterDescriptor does not work when using an enumeration.
    DataException is thrown when resetting the DataSource and a ConditionalFormattingObject is available.
    NullReferenceException on a Windows 10 machine when reordering columns and the TableElement.RowDragHint property is set to null.
    After pinning a group row, the whole group disappears when using ColumnGroupsViewDefinition.
    The hidden columns are not considered when ColumnGroupViewDefinition is exported.
    Excel-like filtering doesn't work when using a TypeConverter.
    Excel-Like filtering does not work with enumeration.
    Invalid layout when the columns are reordered with drag drop. 
    Visual Studio crashes when there is a column with expression and data type set to nullable int.
    ArgumentException in Excel-like filtering with null and empty (blanks) values.
    NullReferenceException when reordering columns.
    SelectNextRow method does not work.
    Exception when the grid is bound to an array of different objects. 
    InvalidCastException when using a GridSpinEditor and a custom TypeConverter.
    Missing rows in PrintPreview.
    Pasting from clipboard on an empty grid or cutting from an empty grid results in a NullReferenceException.

RadButton
FIXED

    The shape is reset when it is set at design time with the shape editor.

RadCheckBox
FIXED

    Shows incorrect state when set to Indeterminate and Disabled in design time

Telerik Presentation Framework
FIXED

    HTML-like text with image source is not displayed.

RadTreeView
FIXED

    The check boxes are squeezed when the expanded state of the child nodes is changed in the NodeCheckedChanged event.
    ArgumentException when binding to Object-relational data and specifying the CheckedMember.
    SelectedNodeChanged event is not fired in multiple selection when unselecting the current node.
    Incorrect nodes order when DataSource is refreshed while a filter is applied.
    Adding nodes is not possible when the control is bound to object relational data. 
    Vertical scroll bar is displayed when expanding a node and there is enough space to display all nodes.

RadTextBoxControl
FIXED

    The initial loading performance can be improved if we work around the empty string measurement.

RadScheduler
FIXED

    Drag operation is not always started under Windows Server 2008, when the operation is performed fast.
    All day appointment is not displayed consistent in DayView.
    Incorrect day is displayed in MonthView with "fa-IR" culture and PersianCalendar.
    Pixellated icon in EditRecurrenceDialog.
    Day text is cut off in the EditRecurrenceDialog.
    Appointment.EndDate is reset when adding a recurrence rule.
    ArgumentException when using EnableExactTimeRendering.

RichTextEditorRibbonBar
FIXED

    Exception when no font is selected.

RadRichTextEditor
NEW

    Added "thermometer", "parameter" and "analyses" words to the default en-US dictionary.
    Introduced support for laying out section content to several columns.
    Introduced column break which inserts break in the current column and transfers the text to the next column in a section.

FIXED

    InvalidCastException when adding read-only range in a paragraph.

RadRibbonBar
FIXED

    ArgumentOutOfRangeException when inserting command tabs in the Form.Load event.

RadPropertyGrid
NEW

    Add support for highlighting the accessibilty objects when  they are selected in the MS inspect tool.

FIXED

    There is no indication that the property is modified when the DateTime value is cleared.

RadPivotGrid
NEW

    IgnoreNullValues functionality for the aggregate descriptions of LocalDataSourceProvider and QueryableDataProvider.

FIXED

    Missing data rows when loading an already saved layout after exporting data using the PivotExportToExcelML class.
    Rows are missing if the form is minimized right after the pivot is exported to excel file.

RadPdfViewer
NEW

    Introduced FormatProviderSettings.ReadAllAtOnce property. When applied, the document stream is copied into a memory stream used by PdfViewer, so the document stream could be closed.

FIXED

    Tiling patterns are rendered wrong when some transformation is applied.
    When the document is in FixedDocumentViewerMode.Pan mode the caret still blinks.
    LZWDecode renders images with displaced pixels.
    Text clipping is not positioned correctly when some transformation is applied.
    Erroneous font accent translation is applied to glyphs which causes text clipping or displacement.
    PDFViewer does not display all text in a document when referencing glyph id with non-defined glyph name in WinAnsiEncoding.
    A blank page might be displayed instead of successfully rendering document page due to concurrency issues when using two or more RadPdfViewers in one user control.

RadPanorama
FIXED

    The Items collection of the control should not accept TileGroupElements.

RadMenu
NEW

    RadMenuItem.HintText property is now localizable.

RadMaskedEditBox
FIXED

    When there is separator character in the mask the caret position is not moved properly.
    The control has incorrect value if you set values with different length.
    Exception isthrown when accessing the value.
    The performance can be improved by creating the RadContextMenu only when it is needed.
    Paste behavior of incorrect text according to the applied mask should be identical when the whole text is selected and when no selection is available.
    The Clear method doesn't clear the Value property/
    The text is not correctly validated when the Mask is set after the MaskType and regex mask is used.
    The RegexMaskTextBoxProvider is still checking for input event if the MaskType is set to none. 

RadListView
FIXED

    CheckBoxesAlignment does not work in DetailsView.
    The checkboxes can not be hidden for particular items.

RadGanttView
FIXED

    The user can add links when the RadGanttView is in read only mode.
    DoubleClick event fires twice.

RadRibbonForm
FIXED

    Visual glitch when loading a maximized form.

RadForm
FIXED

    When the form is maximized on a two monitor system a few pixels are visible on the second monitor.

RadDropDownList
FIXED

    Auto complete items overlap in VisualStudio2012 themes.

RadDateTimePicker
FIXED

    Exception when the selected date is February 29 and one performs a zoom operation.
    ArgumentOutOfRangeException when typing in DateTimePickerFormat.Custom.

RadDataEntry
FIXED

    A data entry bound in the designer and added to a UserControl inheriting other UserControl having RadControls in it results in a NullReferenceException.

RadCommandBar
FIXED

    Getting the PreferredSize changes the control size and the inner controls are not visible.

RadCheckedDropDownList
FIXED

    Unchecking all items is slow.
    ArgumentException when adding a range of strings.

RadChartView
FIXED

    The chart is not updated when it is bound to  Progress.Data.BindingSource.
    RangeSeries shouldn't be clustered in ChartSeriesCombineMode.None.

RadApplicationMenu
FIXED

    The popup is closed when clicking the RadMenuComboItem.ComboBoxElement.EditableElement.

RadSpreadProcessing
NEW

    Introduced Headers and Footers functionality which allows adding rich text content in the page margins, visible when exporting or printing a document.

FIXED

    Exported XLSX documents cannot be imported with OpenOffice and on MAC (Numbers application).

RadPdfProcessing
FIXED

    TextFragment does not respect general graphic state content stream operators which results in glyphs drawn with too thick brush.
    Import throws NotSupportedException when the document contains annotations from unsupported types.
    Encoding JPEG image after decoding another JPEG image results is writing wrong JFIF marker data.
    When inserted after a line break, the whitespace character is positioned on the previous line, instead on the line after the line break.

RadWordsProcessing
FIXED

    Line height larger than expected is exported to PDF because LineSpacing and LineSpacingType property values are not evaluated correctly.
    Exported DOCX documents cannot be imported with OpenOffice and on MAC (Pages application).

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