Hi ,
Thanks for your interest in Syncfusion products.
You can add supertooltip to tabs in TabControlAdv using the following Code Snippet.
ToolTipInfo tooltipinfo1 = new ToolTipInfo();
this.tabControlAdv1.ShowSuperToolTips = true;
tooltipinfo1.Body.Text = "Tab1";
this.tabPageAdv1.SuperTooltip = tooltipinfo1;
Please refer the following sample at the following link that demonstrates the above.
http://www.syncfusion.com/uploads/redirect.aspx?&team=support&file=Tabcontroltooltip1775134093.zipPlease let us know if you have any concern.
Regards,
Lokanath.E