Setting Expiry Date in Response.Cache

[newbieLeo]

Hi,

how can i set an expiry date in Response.Cache from code behind.

below is my code, it work and appeared at no-cache at HTTP debugger Fiddler, but i can't set the expiry date(only appeared no-catche, and ther is no expiry date).

please help me.

Response.Cache.SetCacheability(HttpCacheability.ServerAndNoCache);
Response.Cache.SetAllowResponseInBrowserHistory(true);
Response.Cache.SetExpires(Convert.ToDateTime("Mon,31 May 2010 00:00:00 GMT"));
Response.Cache.SetValidUntilExpires(true);

thanks

[newbieLeo]

hello, this is my latest result so far http://forums.asp.net/p/1419003/3149528.aspx