UI crackings happen when mouse left (RadButton/RadToggleButton)

[n/a]

Hello, I am trying to use Telerik UI fot WPF  for our new project.

 

I just tested your demo version in github (https://github.com/telerik/xaml-sdk)

Unfortunately I encountered some serious issues  with the program.

 

 

First of all, UI components cracked when mouse left RadButton.

RadToggleButtons make this kinds of accidents also.

It looks like the size of components are dramatically changed with mouse event.

 

I attached the video capture of the issue and demo program we used.

 

My question is : 

- why it happens?

- Can I avoid or prevent this issue? how?

[Martin Ivanov]

Hello Jongyeop,

This is unusual behavior for the WPF rendering engine and it could happen if there are issues with the video drivers of the machine that runs the WPF framework. 

There was a similar issue reported recently. It was related especially to DELL machines and a specific .dll file. You can read more about this in the following articles:

https://www.dell.com/community/Alienware/m17-R2-WPF-apps-distorted-disappearing-window-contents/td-p/8069137

http://blog.walterlv.com/post/wpf-renders-wrong-because-of-nahimicosd-en.html

I hope this helps.

Regards,
Martin Ivanov
Progress Telerik

[n/a]

Maybe recent update at Alienware made problems. I should check it at next weekdays.

Thanks for your promt response.