Thank you. Yes, I'm using AJAX.
I have already found "repaint" solution before posting this issue and it was used in my code. Without it the size of RadSlider was invalid. "Repaint" fixes RadSlider size but does not fix style issue (ticks and tick labels).
Adding links to style fixed issue. I even did not have to add
as it is specified in
However I was not able to make "<link ..>" working inside a user control. It works only on the page level.
So, my question is: is there a way to add links to user control, I'd rather not have it on the page level if possible?