internal void SetActive(TabGroup tabGroup)
{
tabManager.SetActive(this);
if (tabGroup == ActiveTabGroup)
{
return;
}
int newIndex = stackedContent.IndexOf(tabGroup);
if (newIndex < 0)
{
throw new InvalidOperationException();
}
var oldTabGroup = ActiveTabGroup;
ActiveIndex = newIndex;
tabGroupSelectionChanged.Raise(this, new TabGroupSelectedEventArgs(ActiveTabGroup, oldTabGroup));
}
