Since the needs of the project do not allow the system to be submitted again, press the back button of IE.
Get it, in the .NET, through the following statement
Response.cache.setcacheability (system.web.httpcacheability.nocache);
You can get the cache of the page to get a new page every time you need to get a new page.
Src: http://www.cnblogs.com/anders/archive/2004/09/23/45889.aspx
