Me.WebTab1.ClientEvents.TabMovingEnd = "WebTab1_TabMovingEnd"
this.WebTab1.ClientEvents.TabMovingEnd = "WebTab1_TabMovingEnd";
// The client event TabMovingEnd takes two parameters sender and e // sender is the object which is raising the event // e is the TabMovingEventArgs function WebTab1_TabMovingEnd(sender, e) { //Gets the index of the tab item involved in the event as an integer var tabIndex = e.get_tabIndex(); //Gets the visible index of the moving tab as an integer var tabVisibleIndex = e.get_tabVisibleIndex(); //Assuming you have a label called labelOutput on the form var label = $get('labelOutput'); if (tabIndex == 2) //Cancels the TabMoving event e.set_cancel(true); else label.innerHTML = "Moving ends for the tab with index '" + tabIndex + "' ..."; }