Me.WebTab1.EnableActivation = true Me.WebTab1.ClientEvents.ActiveTabChange = "WebTab1_ActiveTabChange"
this.WebTab1.EnableActivation = true; this.WebTab1.ClientEvents.ActiveTabChange = "WebTab1_ActiveTabChange";
// The client event ActiveTabChange takes two parameters sender and e // sender is the object which is raising the event // e is the TabItemCancelEventArgs function WebTab1_ActiveTabChange(sender, e) { var tab = sender; //Gets the index of the tab raising the ActiveTabChange client event var tabIndex = e.get_tabIndex(); //Gets the collection of tabs var tabs = tab.get_tabs(); if (tabIndex == 2) //Cancels the client event if tab index is 2 e.set_cancel(true); }