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RadRibbonTab Z-Order obscures content

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RibbonView and RibbonWindow
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Chris
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Chris asked on 22 Nov 2018, 03:23 PM

Hi, I'm running into an issue with the RadRibbonTab obscuring other content that should be in front of it.

The easiest way to illustrate this is with the attached screenshot. I put a breakpoint in the app when I click on an item inside the radRibbontab what is part of the RadRibbonView. The Z-order of the tab is higher than anything else on the screen, in this case obscuring other applications like visual studio. Note the order of the layers in the screenshot is my running WPF app is behind visual studio as expected, but the expanded ribbon tab is in front of it, obscuring part of visual studio.

This causes other issues in the application as well where the tab obscures other controls until the user explicitly hides the rad ribbon tab by focusing on the other control.

I am using VS Professional 2017, Version 15.8.0, .net version 4.7 and Telerik UI for WPF R3 2018

Thank you,

 

Chris

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Dinko
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answered on 27 Nov 2018, 09:59 AM
Hi Chris,

Thank you for the provided picture.

The reason behind this is that the content of the minimized tab is a WPF Popup. The WPF Popup is designed to be topmost. There is no easy way which I can suggest you to workaround this behavior due to the specifics of the native Popup element. What you could try is to create your own Popup class and replaced it in the default template of the control. You can check this article where a similar approach was suggested. 

Regards,
Dinko
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Krzysiek
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answered on 29 Nov 2018, 09:12 PM

thank you, I'll check it out.

 

Chris

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RibbonView and RibbonWindow
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Dinko
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Krzysiek
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