/// <summary>
/// 更新窗口标题的绑定
/// </summary>
internal void UpdateHeader()
{
Pane dockItem = Content as Pane;
if (dockItem == null)
{
return;
}
IEnumerable <Tabs> sects = from sect in dockItem.GetAllTabs()
where sect != null && sect.Visibility == Visibility.Visible
select sect;
if (sects.Count() == 1)
{
// 窗口中只一个Tabs时，隐藏Tabs标题，在窗口标题显示
Tabs sect = sects.First();
sect.ShowHeader = false;
Binding bind = new Binding();
bind.Path = new PropertyPath("SelectedItem.Title");
bind.Source = sect;
SetBinding(HeaderProperty, bind);
}
else
{
foreach (Tabs sect in sects)
{
sect.ShowHeader = true;
}
ClearValue(HeaderProperty);
}
}