Completed
Last Updated: 15 Jun 2018 15:52 by ADMIN
A project with problems in RadTreeListView in the attachment.

Description of the project:

The element RadTreeListView have the name ObjectsTree.  As the ItemsSource of ObjectsTree set the child elements of ObjectsTreeViewModel. ObjectsTreeViewModel contains child elements of type ParentNode. The elements of ParentNode have childrens with type ChildNode. (In the project are used 3 ParentNode elements with 3 childNodes at everyone).

ChildNode elements that have the property ShowNode  equals false should not be displayed. To do this, used the FilterDescriptor. The property IsConnected of ChildNode elements sets the ShowNode property (ShowNode = IsConnected).

The button "Node to offline" is used to reset a property IsConnected to the selected ParentNode element and to all of his children.
The button "All Nodes to online" is used to set a property IsConnected to the all ParentNode elements and to all of their children.
The button "Check Memory Leak" is used update ObjectTree 10000 times.
If you check radiobutton "With Rebind" update using Rebind() command
If you check radiobutton "With clearing filter" update using command sequence : FilterDescriptors.Clear -> FilterDescriptors.Add.

Description of the problem:
1)	When updating the tree using the sequence of commands FilterDescriptors.Clear (); FilterDescriptors.Add (...):
The visual element displays the elements of tree correctly, but there is a memory leak.

2)	When updating with Rebind ():
Memory leaks are not present, but we may see following bug:
Select ParentNode.
Press the "Node to offline" button      -> The child elements are hidden, but a triangle for expanding the list elements is visible.
When you click on this triangle            -> it disappears
Press the button "All Nodes to online" ->the children and the triangle do not appear.
Completed
Last Updated: 21 Jun 2018 14:48 by pavi
Created by: pavi
Comments: 2
Category: UI for WPF
Type: Bug Report
1
When I scroll around in RadVirtualGrid, I get empty cells in some places.

Details:
- I set InitialRowCount=21 and InitialColumnCount =17.
- The window that contains the VirtualGrid is rather small, so that the horizontal and vertical scrollbars are visible.
- I can always reproduce this issue, if I scroll completely to the right, then completely to the bottom and then half-way to the left.
- I found out that the CellValueNeeded event is never called with the indexes for these cells.
- I'm using version 2017.2.614.45 (NoXaml) of UI for WPF.
- I attached a screenshot showing the empty cells and my example project.
Declined
Last Updated: 24 Aug 2017 08:54 by ADMIN
Hi support,
I've mixed RibbonWindow Sample and Prism with ReagionManager and RadDocking in this sample. When I try to dock a derived RadPane (e.g. OutputView or others) in center of the compass menu the derived RadPane Header is not shown as a tab in the split container. Only pure RadPane instances  (c.f. "_regionManager.RegisterViewWithRegion("DockingRegion", typeof(RadPane)); " in FileServicesModule class will dock in correct manner. 
Approved
Last Updated: 24 Aug 2017 12:31 by ADMIN
Created by: Rob
Comments: 1
Category: UI for WPF
Type: Bug Report
1
The event args for the RadDocking.ActivePaneChanged are named "ActivePangeChangedEventArgs" which I'm assuming is a typo for "ActivePaneChangedEventArgs".
Declined
Last Updated: 07 Jun 2017 08:00 by ADMIN
Created by: Matthias
Comments: 5
Category: UI for WPF
Type: Bug Report
1
We use 'xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"' in our application.
The problem is that DrapAndDrop does not work anymore, no Events are fired.

Since our last release we didn't change anything at our UI and as I tried a few days ago to drag something in the application and nothing happened.

Did something change with the previous mentioned reference?
What are possible solutions?

Thank you in advance 
Declined
Last Updated: 22 May 2017 10:47 by ADMIN
Created by: Joseph
Comments: 1
Category: UI for WPF
Type: Bug Report
0
I have a diagram with about 45 custom image objects contained within it. When I export the diagram to a png using RadDiagram.Export("PNG") there are 3 images that are not rendered in the image.
Approved
Last Updated: 15 May 2017 15:54 by ADMIN
When setting IsSynchronizedWithCurrentItem to true, the RadListBox behaves differently from the standard ListBox; changing the selection in the RadListBox does not update the current item of the underlying ICollectionView.
Completed
Last Updated: 15 Feb 2017 09:04 by ADMIN
Available in LIB version 2017.1.213 , it will be also available in the R1 2017 SP1 Release.
Declined
Last Updated: 17 Jan 2017 09:36 by ADMIN
Created by: Sherry
Comments: 1
Category: UI for WPF
Type: Bug Report
0
The problem is happening with Rad Docking in X1 Yoga Thinkpad laptop. The problem is so that when launching the pane in Raddocking then the pane opens up outside the window. This is happening even if the window is not near to the border of the screen. Video and the same project attached.
Completed
Last Updated: 13 Feb 2019 12:18 by ADMIN
For example, when DateTimePicker.FlowDirection=RightToLeft, the CalendarIcon is inverted [Windwos8, Greeen, Office2013 etc. themes].
Approved
Last Updated: 04 Jan 2017 13:10 by ADMIN
InvalidProjectFileException is thrown when ApiAnalyzer cannot find the file Microsoft.VisualStudio.ServiceModel.targets referenced from a WPF project.
Completed
Last Updated: 16 Oct 2018 12:12 by ADMIN
The issue is also observable in the Outlook project template as well - in the NewEmailWindow. As a workaround, the ScreenTip can be removed by deleting the following code:
telerik:ScreenTip.Icon="{telerik:IconResource IconRelativePath=FontDialog.png,IconSources={StaticResource IconSources}}"  

Fix available in R3 2018 SP1 release.
Completed
Last Updated: 21 Nov 2016 14:54 by ADMIN
When add references to GridView, GanttView, Input, Pivot, PivotFieldList binaries and open VisualStudio designer, add telerik schema and open VS designer, the following exceptions are shown in output window: 
There was an exception when loading the design time assembly 'C:\Users\Andy\AppData\Local\Microsoft\VisualStudio\14.0\Designer\ShadowCache\vnccr3tx.jie\tpt1i54e.lhk\Design\Telerik.Windows.Controls.GanttView.Design.5.0.dll':
Exception has been thrown by the target of an invocation.
There was an exception when loading the design time assembly 'C:\Users\Andy\AppData\Local\Microsoft\VisualStudio\14.0\Designer\ShadowCache\rcuor1yw.trm\3pfbopk0.jq2\Design\Telerik.Windows.Controls.GridView.Design.5.0.dll':
Exception has been thrown by the target of an invocation.
There was an exception when loading the design time assembly 'C:\Users\Andy\AppData\Local\Microsoft\VisualStudio\14.0\Designer\ShadowCache\5dbl0ard.vq2\ryoz1p4c.qfj\Design\Telerik.Windows.Controls.Input.VisualStudio.Design.4.0.dll':
Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.
Could not load file or assembly 'Telerik.Windows.Core.Design, Version=2016.3.1024.45, Culture=neutral, PublicKeyToken=5803cfa389c90ce7' or one of its dependencies. The system cannot find the file specified.
There was an exception when loading the design time assembly 'C:\Users\Andy\AppData\Local\Microsoft\VisualStudio\14.0\Designer\ShadowCache\1ezw2acw.w0d\41bkmvbl.kft\Design\Telerik.Windows.Controls.Pivot.Design.5.0.dll':
Exception has been thrown by the target of an invocation.
There was an exception when loading the design time assembly 'C:\Users\Andy\AppData\Local\Microsoft\VisualStudio\14.0\Designer\ShadowCache\p2ywzsl3.fxy\22f0oc1j.nsf\Design\Telerik.Windows.Controls.PivotFieldList.Design.5.0.dll':
Exception has been thrown by the target of an invocation.

Available in LIB version 2016.3.1121, it will be also available in the 2017 R1 release.
Completed
Last Updated: 04 Jan 2017 13:42 by ADMIN
This blends the text with the background and only a black rectangle is displayed. See the attached image.
Approved
Last Updated: 30 Jan 2017 15:20 by ADMIN
Completed
Last Updated: 07 Oct 2016 08:55 by ADMIN
Completed
Last Updated: 18 Apr 2017 07:50 by ADMIN
ADMIN
Created by: Masha
Comments: 1
Category: UI for WPF
Type: Bug Report
0
Glyphs overview: http://docs.telerik.com/devtools/wpf/styling-and-appearance/glyphs/common-styles-appearance-glyphs-overview 

Available in 2017 R2 Official Release.
Declined
Last Updated: 31 May 2018 13:04 by ADMIN
ADMIN
Created by: Dilyan Traykov
Comments: 1
Category: UI for WPF
Type: Bug Report
4
Controls are not visible in design-time when the build platform is x64.
Completed
Last Updated: 24 Jan 2017 07:20 by ADMIN
Declined
Last Updated: 11 Jul 2016 13:35 by ADMIN
Created by: Marcus
Comments: 1
Category: UI for WPF
Type: Bug Report
0
When the RadRibbonSplitButton fires the command everything works fine.

When the RadMenuItem inside the RadRibbonSplitButton.DropDownContent fires the same command, the "this.Cursor = Cursors.Wait;" inside the method has no effect.
The Cursor doesn't change.

See the attached sample application

Decline Reason: This behavior is expected and it comes from the WPF native Popup element which hosts the button's DropDownContent. Basically, when the split button is clicked and the Window Cursor is changed, the mouse is over the window before the application freezes and you can see that it is changed. On the other hand due its specifics the Popup is not placed directly in the Window (it is rendered into a separate visual tree) and when the Window's cursor is changed, you won't see it because the mouse is not over the Window. So, the application freezes before the mouse gets over the window. You can resolve this by setting the Popup Cursor property or the static Mouse.OverrideCursor property.