private void UpdateTabs(bool clear)
{
if (Ribbon != null)
{
for (int i = 0; i < Ribbon.Items.Count; i++)
{
RibbonTab tab = Ribbon.ItemContainerGenerator.ContainerFromIndex(i) as RibbonTab;
if (tab != null && tab.IsContextualTab && Object.Equals(tab.ContextualTabGroupHeader, Header))
{
if (!clear)
{
if (tab.ContextualTabGroup == null)
{
tab.ContextualTabGroup = this;
tab.CoerceValue(VisibilityProperty);
}
}
else
{
tab.CoerceValue(VisibilityProperty);
tab.ContextualTabGroup = null;
}
}
}
}
}
/// <summary>
/// Property changed callback for ContextualTabGroupHeader property
/// </summary>
private static void OnContextualTabGroupHeaderChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
RibbonTab ribbonTab = (RibbonTab)d;
Ribbon ribbon = ribbonTab.Ribbon;
if (ribbon != null)
{
ribbon.NotifyTabContextualTabGroupHeaderChanged();
if (e.NewValue != null && ribbonTab.Ribbon.ContextualTabGroupItemsControl != null)
{
ribbonTab.ContextualTabGroup = ribbonTab.Ribbon.ContextualTabGroupItemsControl.FindHeader(e.NewValue);
}
else
{
ribbonTab.ContextualTabGroup = null;
}
OnNotifyHeaderPropertyChanged(d, e);
ribbonTab.CoerceValue(VisibilityProperty);
}
}