https://www.syncfusion.com/forums/158605/newbutton-feature-seems-to-work-improperly-in-2020-volume-3
NewButton Feature Seems to Work Improperl... | WPF Forums | Syncfusion
Forum Thread - TabControlExt - NewButton Feature Seems to Work Improperly in 2020 Volume 3. Browse other users' questions about our WPF...
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