In the sample app open AdvancedTabControl styling page. On first one with the new tab button (+ button) change the XAML and set AdvancedTabControl.HasTabCloseButtons to true. Launch sample app and notice that there are no close buttons, even on the selected tab its missing.
<docking:AdvancedTabControl MinHeight="80" HasNewTabButton="True" HasTabCloseButtons="True">
//edit: Nvm, I have to manually set "CanClose" on each tab to true. I think that it should be true by default because "HasTabCloseButtons" is false by default, so by default close buttons are not visible anyway.
[Modified 12 days ago]