private static void TabControlProperty_ValueChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
if (e.NewValue != null)
{
TabContent.GetContentManager((TabControl)e.NewValue, (Border)d).UpdateSelectedTab();
}
}
private static void PersistProperty_ValueChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
if (!(d is TabControl tabControl))
{
return;
}
if ((bool)e.NewValue)
{
if (tabControl.ContentTemplate != null || tabControl.ContentTemplateSelector != null)
{
throw new InvalidOperationException($"{nameof(TabControl.ContentTemplate)} and {nameof(TabControl.ContentTemplateSelector)} must be null when Persist is true.");
}
tabControl.ContentTemplate = TabContent._template;
TabContent._contentTemplateDescriptor.AddValueChanged(tabControl, TabContent.TabControl_ContentTemplatePropertiesChanged);
TabContent._contentTemplateSelectorDescriptor.AddValueChanged(tabControl, TabContent.TabControl_ContentTemplatePropertiesChanged);
}
else
{
TabContent._contentTemplateDescriptor.RemoveValueChanged(tabControl, TabContent.TabControl_ContentTemplatePropertiesChanged);
TabContent._contentTemplateSelectorDescriptor.RemoveValueChanged(tabControl, TabContent.TabControl_ContentTemplatePropertiesChanged);
tabControl.ContentTemplate = null;
using (TabContent.GetContentManager(tabControl))
{
TabContent.SetContentManager(tabControl, null);
}
}
}
private static ContentManager GetContentManager(TabControl tabControl, Border border)
{
ContentManager?manager = TabContent.GetContentManager(tabControl);
if (manager == null)
{
TabContent.SetContentManager(tabControl, manager = new ContentManager(tabControl));
}
manager.Container = border;
return(manager);
}