Telerik UI for WPF

Release History

UI for WPF R1 2017 SP1

February 21, 2017

All Controls

  • Introduced new RaisePropertyChanged method in the ViewModelBase that uses the CallerMemberName attribute (.Net 4.5 only).


  • Index returned from HighlightBehavior is not respected when filtered list contains a single item.


  • Making selection through UI breaks OneWay binding to the SelectedItem property.


  • Nested RadDataForms breaks the control's Commands functionality.


  • Exception in VirtualQueryableCollectionView on filtering with nullable DateTime value.
  • Dragging column header over non reordable column results in permanent Not Allowed drag cue.
  • Merging dictionaries can cause binding errors for GridViewPinButton.IsPinned.
  • Results returned for a column bound to nullable double are not highlighted.
  • Improved the initial loading time when adding a large set of column groups.
  • Pressing the edit icon in new row inserts wrong data with GroupRenderMode="Nested".
  • Adding new item through the row indicator while editing a sorted grid, results in wrongly added data of the edited item.
  • An Exception can be thrown when updating the DataContext of the FieldFilterControl and a custom defined controls in the filter are bound to different types.
  • ArgumentNullException is thrown when using search panel and column DataType is not set.
  • Setting IsReadOnlyBinding throws an exception when the binding source is different from the default one.
  • Changing ItemsSource of the GridViewComboBoxColumn runtime leads to empty cells in that column.
  • ErrorIndicator and EditIndicator icons overlap when validating new row in Office2016, Office2016Touch and Green themes.
  • "Cannot create a top-level child window" exception is thrown when using ShowToolTipOnTrimmedText in xbap application.
  • InvalidOperationException is thrown from the synchronization of the pinnedItems state when the ItemsSource collection of RadGridView is changed by asynchronous operations.
  • Clicking row indicator on newly added row adds an additional row.
  • Mouse arrow cursor appears above the drop not allowed icon when dragging column headers.

Image Editor

  • Setting IsPanningEnabled property to true before applying the template of RadImageEditor results in exception.


  • Setting ScrollViewer.HorizontalScrollBarVisibility attached property of LayoutControl or LayoutControlGroups won't get applied.


  • RadListBox does not raise the Initialized event.


  • BingRestElevationCompletedEventArgs, BingRestRoutingCompletedEventArgs and BingRestSearchLocationCompletedEventArgs don't expose UserData property which should return the UserData object set in the corresponding rest request.

Outlook Visual Studio project template

  • NullReferenceException is thrown design time in MainView.


  • When minimized during run-time change of themes item's header overlaps the minimizing toggle button in some themes.

PDF Viewer

  • Setting VisiblePagesCacheOffset property to int.MaxValue hangs the PdfViewer application.
  • Document is not loaded when it is created with PdfDocumentSource from Uri and with ReadOnDemand option.
  • Setting VisiblePagesCacheOffset to cache all PDF document pages slows the initial load for documents with a lot of pages.


  • EndStream keyword cannot be found which results in InvalidOperationException.
  • Metadata streams are not exported as plain text when the exported file is PDF/A.


  • OutOfMemoryException is thrown when loading document containing large images.


  • Implemented virtual UpdateAppointmentItemContentTemplateOverride method.
  • CurrentTimeIndicator rendering optimization.
  • Improved the ScheduleViewDragDropBehavior in order to call ConvertDraggedData only once on mouse enter when the new CacheConvertedDragData property is set to true.
  • If SnapAppointments is enabled the Appointments disappear after dropping them outside of the current day.
  • Using custom LocalizationManager in order to change the ViewDefinitions Title - throws StackOverflow exception.


  • Documents with global print area cannot be imported because of thrown SpreadsheetNameException.
  • General number format containing locale code is not recognized as General and the numbers in the cell are replaced with "General" text content.
  • Images are not rendered when ext tag element has zero width or height.


  • General number format containing locale code is not recognized as General and the numbers in the cell are replaced with "General" text content.
  • Images are not rendered when ext tag element has zero width or height.


  • ObjectDisposedException is thrown when the GC finalize all objects from the ZipArchive.

New features & Roadmap

Have a feature request?

Post your feedback via the WPF and Silverlight Feedback Portal.

What's new across all Telerik products?

See all updates

Get Started Waves

Next Steps

Launch demos

See Telerik UI for WPF in action.

Check pricing

Purchase individual products or any of the bundles.

Download 30-day free trial

With dedicated technical support.