http://blogs.msdn.com/nikola/archive/tags/animation/default.aspxTags: animationen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/nikola/archive/2008/03/20/binding-animation-to-and-from-properties.aspxThu, 20 Mar 2008 20:42:00 GMT91d46819-8472-40ad-a661-2c78acb4018c:8327598nikola1http://blogs.msdn.com/nikola/comments/8327598.aspxhttp://blogs.msdn.com/nikola/commentrss.aspx?PostID=8327598<P class=MsoNormal style="MARGIN: 0in 0in 10pt"><FONT size=3><FONT face=Calibri>When trying to bind animation To and From properties to something else you may get this exception: “<SPAN lang=EN style="mso-ansi-language: EN">Cannot freeze the storyboard timeline tree for use across threads”. One possible workaround is to put the animation in a resource.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></FONT></FONT></P> <P class=MsoNormal style="MARGIN: 0in 0in 10pt"><SPAN lang=EN style="mso-ansi-language: EN"><FONT face=Calibri size=3>I found a very good post with a sample and few ways to make this work. It contains explanation about why the exception is happening: </FONT><A href="http://blogs.microsoft.co.il/blogs/tamir/archive/2007/03/19/How-to-bind-to-Animation-To-and-FROM-properties.aspx" mce_href="http://blogs.microsoft.co.il/blogs/tamir/archive/2007/03/19/How-to-bind-to-Animation-To-and-FROM-properties.aspx"><FONT face=Calibri size=3>http://blogs.microsoft.co.il/blogs/tamir/archive/2007/03/19/How-to-bind-to-Animation-To-and-FROM-properties.aspx</FONT></A><FONT face=Calibri size=3> </FONT></SPAN></P><img src="http://blogs.msdn.com/aggbug.aspx?PostID=8327598" width="1" height="1">WPFfreezablesanimation