/// <summary>
/// Close TracerWindow.
/// </summary>
private static void CloseUnloadedWindows(DockPanel dockPanel)
{
List<DockContent> list = new List<DockContent>();
foreach (DockContent content in dockPanel.Contents)
{
if (!(content is EcellDockContent))
list.Add(content);
}
if (list.Count <= 0)
return;
foreach (DockContent content in list)
content.Close();
dockPanel.Refresh();
}