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John
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John asked on 21 Jan 2022, 08:24 PM

We upgraded from 2.30 to 3.0 and immediately noticed our app stopped working. Properties of some controls seemed to have been removed. Could work with that. My main issue so far is the treeview expanded/unexpanded display has changed. Top level tree doesn't show any icon. Took the hierarchical treeview sample code and this is what I see

Is there some class styling conflict or something?

Dimo
Telerik team
commented on 26 Jan 2022, 07:56 AM

Hi John,

John
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commented on 26 Jan 2022, 03:31 PM

I was using the Telerik theme when the project was created. Is there an easy way to update bootstrap-main.css? I'm not sure if we want to use CDN theme as we might want more control over accepting changes.
Dimo
Telerik team
commented on 26 Jan 2022, 04:00 PM

@John - "bootstrap-main.css" implies that you are using one of the following:

  • custom theme
  • CDN theme or swatch (a swatch is a theme with a predefined color scheme)
  • CDN theme or swatch that you have downloaded locally

For cases 2 and 3, update the CDN URL or download the correct version locally again.

For case 1, recreate the custom theme with our ThemeBuilder via import or from scratch.

It is vital to update custom themes, CDN URLs or downloaded theme swatches with every update of UI for Blazor. Otherwise you end up with styling issues like the current one.

John
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commented on 26 Jan 2022, 04:03 PM

Thanks, the download link is what I was looking for

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Semen
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answered on 22 Jan 2022, 05:08 PM | edited on 22 Jan 2022, 05:10 PM

Yes, they changed some styles and properties. Also they changed inner structure of some components.

https://www.telerik.com/forums/css-problems#5430602

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