I checked out a page, made some changes to a DataSource on Design tab and the page displays YSOD now on Page and Design tabs. I can access Properties tab, but the latest version is greyed out by some reason, so I can only roll back to the second latest version. How can I undo checkout if I can't access Design tab of a page?
I use Kentico 7.0.75.
Ok, found it, I unchecked "Display web part content" checkbox which allowed me to load the page and update DataSource
If you are using page template you can typically go to the templates application and make your modifications there as well. But yes, the first approach is to not show the content.
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