Telerik UI for Silverlight R1 2019 SP1 (version 2019.1.220) Retail

Telerik UI for Silverlight

includes a wide range of controls from small UI components such as Rating to powerful data-driven controls like GridView. The suite provides a variety of data visualization tools which allow you to display and edit your data in many different ways. Manipulate your row data in a GridView or Spreadsheet and then visualize it through PivotGrid, or any of the other charting and diagramming tools. Choose from a number of components for daily or business planning such as ScheduleView where users can easily plan their day and GanttView which allows users to visualize and manage any project planning data. Telerik UI for Silverlight comes complete with customizable UI controls for a variety of needs and options, which makes it the ideal choice for any Line of Business Application.

Professional-Looking Themes

Give your applications the slick professional look by applying our built-in themes. Telerik UI for Silverlight ships with more than ten professionally designed themes. Windows8 and Windows8Touch, let you apply styling in real-time. While the new Office 2013 theme mimics the look and feel of Microsoft Office 2013.

Themes include

Visual Studio 2013

Exceptional Performance and User Experience

Telerik UI for Silverlight enhance user experience by providing both UI and data virtualization. Use Telerik UI Controls to display large amounts of data, with virtually no performance trade-off. What you get is exceptional performance and a sleek end-user experience. Telerik UI Controls make your apps fast by:

Producing minimal and clean XAML
Allowing you to load only the data within the current viewport of the application
Implementing lazy loading loading data only when it is requested
Minimizing memory usage, robust code free from memory leaks
Document Processing

Two new components enable you to process the most common spreadsheet and PDF file formats without having Microsoft Office or other third-party libraries installed. Your application users will be able to create, load and modify documents in a variety of formats including:


Enable your application to seamlessly export and import documents or convert them from one format to another. All thanks to the intuitive and easy-to-use APIs.

MVVM Support

Software development is made easier with the ability to drag-and-drop a complex control from our toolbox, wire up a few events, receive quick functionality, and then move on to the next work item. Those functionalities, however, do not guarantee that the software created is well structured, easily extensible, and unit testable. MVVM resolves those issues. Telerik UI for Silverlight fully supports MVVM, allowing you to create reliable, well-structured and easily maintainable applications.

Touch Support

The built-in touch support and the Windows8Touch theme make your Telerik UI for Silverlight powered applications run smoothly on a touch device.

Export Support

Export the data that different controls display with a functionality that enables your users to view and manipulate their data even after an application is closed. Telerik UI for Silverlight provides you out-of-the-box export functionalities and options. Most of the data-driven controls allow you to export data to a variety of formats.

UI for Silverlight R1 2019 SP1

February 20, 2019 ChartView FIXED

Memory leak when chart series are bound to ObservableCollection, chart is opened in child window, then window is closed but viewmodels are alive in WPF app's MainWindow.

Diagrams FIXED

Dragging a Bezier connection cannot be reverted with undo/redo operation.

Docking FIXED

Loaded layout is incorrect when a SplitContainer contains auto generated PaneGroup and SplitContainer inside.

ExpressionEditor FIXED

Double-clicking the IF operator inserts the text Condition() instead of IF() in the text editor.
Expressions containing parentheses inside of method arguments are not evaluated.

GanttView NEW

Allow users to navigate backward when editing cells by using the Shift+Tab combination.


ArgumentNullException is thrown when selecting an item after collapsing and expanding a sibling item with complex child hierarchy.
Cannot change DeadlineContainer's color without re-templating it. If color change is needed, use DeadlineContainer's Background property.
NullReferenceException is thrown when hovering an item in a scenario with nested items when collapsing and expanding an item with complex child hierarchy.

GridView FIXED

Right header gripper element is misplaced in Office2013 theme which causes resizing issues.
There is a misalignment in FilterRow's DateTime column in Windows8 theme.
First character is lost when quickly entering edit mode into a GridViewMaskedInputColumn with MaskType Standard.
The SelectedCells collection is not updated when adding/removing columns runtime.


GridView HeaderCell elements now do not have default background, only HeaderRow elements do.

MaskedInput FIXED

FormatString property is not applied in RadMaskedDateTimeInput's Text on load and UpdateValueEvent is 'LostFocus'.
The Value and the Text properties are not updated after focusing the control programmatically and pressing the Backspace key.
Wrong value is produced in MaskedTextInput when Focus() and SelectAll() are used in code and then char is typed.


The width of VerticalScrollBar and the height of HorizontalScrollBar are changed when using Transparent, Office_Black, Office_Blue, Office_Silver, Summer and Vista themes with implicit styles. All mentioned themes, except Summer, default to 15px, Summer theme defaults to 18px.


An exception is thrown at design time for missing RepeatButtonStyle for Crystal, Fluent, Material, Office2016 and Office2016Touch themes.
Current page number changes too late.
Hyperlinks within a document are not working via touch.
Japanese fonts with FontFile3 and subtype CIDFontType0C are displayed with wrong characters.

PivotGrid FIXED

The AutoShowTotals property is set to false if a value is not present in XML file when deserializing (by default the property should be set to true). 

RichTextBox NEW

Optimized memory consumption when exporting documents with big images to XAML.


Code Block style should not be included in the Manage Styles dialog.
Caret is blinking during typing and navigation with the arrow keys.
Style dialog doesn't allow changing of "based on" style.
When RTB is placed in a ScrollViewer, typing causes invalid ScrollChanged events.

TileList FIXED

An InvalidOperationException is thrown if a group has no items when using implicit styles.

TreeView FIXED

Binding IsEnabled property using Implicit Style of the TreeViewItem is not working.

WatermarkTextBox FIXED

Set WatermarkTextBox's DisabledBackground default color value to transparent as it lays over DateTimePicker and AutoCompleteBox controls in Windows8, Windows8Touch, Office2013 and VisualStudio2013 themes.
Intuitive API

Telerik UI for Silverlight has a short learning curve and is easy to use. The suite provides for:

Seamless integration with your Visual Studio Toolbox for quick drag and drop usage
Feature configuration using Design-time Wizards
Easy to learn API
The Telerik UI Controls API is a close mirror of Microsoft. If youve worked with the Silverlight Framework and Microsofts XAML Controls, youll get up and running fast in Telerik UI Controls for Silverlight