http://www.cnblogs.com/Jason_z/archive/2009/10/15/1583669.htm
C#进度条(转)
http://www.cnblogs.com/liubo68/archive/2012/12/26/2834119.html
进度条
http://www.cnblogs.com/superlee/archive/2010/02/03/1662327.html
使用多线程制作简单的Winform进度条
http://www.cnblogs.com/zzy0471/archive/2010/12/12/1903602.html