Styling changed after Update to v2021.3.1109

[Peter]

Hello,

I recently updated to the new UI for WPF R3 2021 SP (v2021.3.1109).

I noticed that the appearance of my docking window has changed. It seems that the background color of the main window is inherited now. I attached two screenshots of my application, one before the change, one after.

Is this by accident or will it be a permant change?

regards,

Tobias

 

[Peter]

Here are the screenshots mentioned above.

[Stenly]

Hello Peter, 

I have prepared a sample project in order to reproduce the mentioned behavior but to no success. With this said, could you modify the attached project, so that it duplicates the issue? Also, if you could, is it possible to provide a bit more information regarding the setup, in which this is reproduced? In addition, is this behavior present in a new project that only has a docking a simple docking implementation?

[Stenly]

Hello Peter,

The observed behavior is present due to the changes we have made to the RadDocking control, which are intended and will be permanent. With that said, this occurs because when the window has the RadWindowInteropHelper.AllowTransparency attached property set to False, the docking's shadows are automatically turned off.

In order to change this behavior, set the mat:MaterialAssist.IsShadowDisabled attached property to False, on the RadDocking control. To use this property in your application, add the following namespace:

<Window xmlns:mat="clr-namespace:Telerik.Windows.Controls.MaterialControls;assembly=Telerik.Windows.Controls" />

I hope the provided information helps.

Regards,
Stenly
Progress Telerik

[Peter]

Hello,

I modified the Sample-Project that the problem occures. The main difference ist that i am using implicit styles and the Fluent-Theme.

Hope this helps!

cheers,

Tobias

[Masha]

Hello Peter,

Thank you for the sample project.

I was able to replicate the described problem on my side and I can confirm that this is not the desired behavior. The fix will be available for download on Monday. I have also added some telerik points to your account as a thank you for bringing this to our attention. 

As a workaround, you can extract the control template of RadPaneGroupDocumentHostControlTemplate, RadPaneGroupDefaultControlTemplate and RadPaneGroupTopControlTemplate, look for the element named shadow and create a Border element below, where the background should be TemplateBound.

I hope this helps.

Regards,
Masha
Progress Telerik

[Peter]

Thank you. That is good news.

Where can I find the fixed download?

[Stenly]

You could find a step-by-step guide on how to download our latest internal build here.

[Peter]

Hello Masha,

thank you for the provided fix. It works well but one thing is left:

There is no border anymore between an auto hide window and the rest of the application. See the attached screenshot.

So the same question here:

Is this by accident or will it be a permant change?

regards,

Tobias