Hello Stephen,

The NTabControl doesn't handle MouseUp event.

However there is one workaround you can use.

The part of NTabControl where the tabs are actually is NTabStrip control, which handles MouseUp.

This NTabSrtip is not exposed in NTabControl but it is actually the first control in NTabControl.Controls collection, so you can do the following:

NTabStrip tabStrip = nTabControl1.Controls[0] as NTabStrip;

if (tabStrip != null)

{

    tabStrip.MouseUp += new MouseEventHandler(tabStrip_MouseUp);

}

I hope this approach will help you to attach to MouseUp event.

Regards,

Angel.