some techniques of silverlight 4.0

these are some demos can run.

1 slidershow

http://www.c-sharpcorner.com/uploadfile/raj1979/photo-slideshow-in-silverlight-4/

2 marquee

http://www.cnblogs.com/yjmyzz/archive/2009/09/09/1563259.html   and http://www.wynapse.com/Silverlight/Tutor/Silverlight_With_Java_Script_Tutorial_12_Silverlight_Marquee_Text.aspx

3 TimeSpan

http://www.cnblogs.com/yjmyzz/archive/2009/03/29/1424346.html

4 Rectangle

http://www.c-sharpcorner.com/uploadfile/mahesh/rectangle-in-silverlight/