Last Updated: 07 Feb 2020 09:27 by ADMIN
Release R2 2020
NuGet: A wrong dependency is added when installing the SpreadsheetStreamingExport package.
Last Updated: 05 Feb 2020 09:36 by ADMIN
Release LIB 2020.1.210 (2/10/2020)
Created by: Martin Ivanov
Comments: 2
Category: UI for WPF
Type: Bug Report

Most commonly the exception message is "Input file or data stream does not conform to the expected file format specification".

This appears because of the glyphs font used in the different controls.

To work this around you can use two approaches:

  • Update to Windows 7 SP2.

  • The second option is to download the UI for WPF source code, find the TelerikWebUI.ttf file and convert it to .otf using a third party tool (like FontForge for example). Then use a reflection to replace the font file, before the application startup. For example:
    var dictionary = typeof(RadGlyph).GetField("registeredTypefaces", BindingFlags.NonPublic | BindingFlags.Static)?.GetValue(null) as Dictionary<string, Typeface>;
    RadGlyph.RegisterFont(new FontFamily(new Uri("pack://application:,,,/WpfApp3;component/TelerikFont/", UriKind.RelativeOrAbsolute), "./#TelerikWebUI"), "TelerikWebUI");
    In the code snippet, "WpfApp3" is the assembly name of your project, and "TelerikFont" is a folder in your project, containing the converted font file. You can call this code in the OnStartup override of App.xaml.cs. Or before the InitializeComponent() call in the main window's constructor.
Last Updated: 13 Dec 2019 13:15 by ADMIN
Created by: LindenauAtSOG
Comments: 13
Category: UI for WPF
Type: Bug Report


- Multiple screen RDP-Session with option "Show windowcontents while dragging" turned off.

- RadTabbedwindow with AllowTransparency = false (might not be necessary)


When dragging a maximized TabbedWindow to a different screen into maximized mode, it is allways maximized on the primary screen.
Dragging it on the target screen so that it is not maximized and then clicking maximize works.

The issue only appears when the mentiond setting in the RDP-Session is turned off.

Last Updated: 30 Oct 2019 08:19 by ADMIN
Release R3 2019 SP1
As suggested in the orginal support ticket 1430154 I'm opening a separate bug reprot for the RadNumericUpDown control.

Visual Studio 2019 solution to reproduce the problem is attached to the bug report.
Last Updated: 16 Oct 2019 05:59 by ADMIN
Release R3 2019 SP1
     When open the radCombobox's drop list,put the mouse in the  next to last item,
then scroll the mouse back and forth,then the mouseover mark disappear,just when move the mouse to
the other item ,the mouseover mark will appear.
Last Updated: 24 Sep 2019 06:43 by ADMIN
TabIndex property is not respected when the IsEditable property of the RadComboBox is set to true.
Last Updated: 03 Jun 2019 06:26 by ADMIN
Release LIB 2019.2.603 (06/03/2019)
 Scrolling to a not visible column, a ToolTip appears on this column which does not have a ToolTipTemplate set.
Last Updated: 17 Apr 2019 10:43 by ADMIN

Steps to reproduce

  1. Click somewhere in the document to move the cursor
    • The cursor starts blinking in the exact location is was moved to after you clicked
  2. Move the cursor with the arrow keys on the keyboard
    • The first time the cursor blinks it moves slightly to the right of the position it was moved to by the arrow key

Unfortunately due to the other cursor jumping bug our users are extremely sensitive to anything that makes it appear like the cursor is not in the position they moved it to.

I attached a gif of this happening with the zoom set to 500% so it is easiest to see but it appears to be a problem at any zoom level 100% or higher.

Last Updated: 22 Mar 2019 12:59 by ADMIN
Release 2019.1.325 (03/25/2019)
Select file/fodler. Press F2 and rename it. Click Enter. File stays selected but pressing F2 does not enter edit mode again.
Last Updated: 11 Mar 2019 06:46 by ADMIN
Two tabs are required to navigate between property fields in the following themes:
- Office2013
- VisualStudio2013
- Green
- Office2016(Touch)
- Material
- Fluent
- Crystal
Last Updated: 01 Mar 2019 09:10 by ADMIN
Created by: Pierre-Yann
Comments: 1
Category: UI for WPF
Type: Bug Report
When importing documents with destinations defined with zero-based page index, an invalid page is displayed when the destination is activated.

Last Updated: 13 Feb 2019 12:18 by ADMIN
For example, when DateTimePicker.FlowDirection=RightToLeft, the CalendarIcon is inverted [Windwos8, Greeen, Office2013 etc. themes].
Last Updated: 12 Feb 2019 12:17 by ADMIN
Last Updated: 12 Feb 2019 08:03 by ADMIN
When there are parentheses inside the arguments of a function call the expression parser cannot parse the expression e.g. Abs(1 - (2 * 3))
Last Updated: 11 Feb 2019 13:07 by ADMIN
Setting StyleManager.Theme attached property is not respected by RadDiagramToolBox.
Last Updated: 25 Jan 2019 13:30 by ADMIN
When we load an XML file to the diagram using DiagramRibbon the ribbon does not clear the diagram items

Scheduled for:
The fix for this issue will be available with LIB (version 2019.1.128) scheduled for publishing on Monday, 28th January 2019.
Last Updated: 04 Jan 2019 13:42 by ADMIN
An exception is thrown when the ItemsSource of the ItemsSourceProvider is bound to a DataTable and an item is select in the drop-down.

The fix for this issue will be available with our next official version – R1 2019 expected in the middle of January. 
Last Updated: 28 Dec 2018 07:44 by ADMIN
Non-breaking spaces are converted to plain spaces when importing docx documents. While non-breaking spaces are not fully supported by RadRichTextBox, this behavior is inconsistent with the behavior of all other formats, which preserve the nbsps on import and on export.
Last Updated: 18 Dec 2018 14:05 by ADMIN
The current workaround is to handle the Loaded event like so:

        private void RadMultiColumnComboBox_Loaded(object sender, RoutedEventArgs e)
            this.combo.DropDownWidth = this.combo.DropDownMinWidth;

The fix for this issue will be available with the next LIB (version 2018.3.1224) expected on Monday, December 24.
Last Updated: 12 Dec 2018 11:04 by ADMIN
UI can still accept more inputs  even if item has been selected in SelectionMode="Single"
Please check the screenshot.

SelectionBoxesVisibility property will be introduced with Q1 2019 expected in the middle of January. When set to Hidden/Collapsed, SearchAutoCompleteBox contains the selected item as text only.
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