No-Cache and Expiry

[Gareth]

Does anyone know how to make an ASP.NET (C#) page expire immediately and not
be cached?
What I want to happen is if the users pressed the BACK button they get a
page has expired and has to be reloaded message.
I've tried just placing the standard HTML meta tags in but that doesn't seem
to work. I've also tried using the Cache objects properties too. That didn't
seem to work either.

Anyone any ideas?

Thanks,
Gareth

[Saravana [MVP]]

Check out this faq,
http://www.extremeexperts.com/Net/FA...ackButton.aspx
--
Saravana
Microsoft MVP - ASP.NET
www.extremeexperts.com

"Gareth" <gcparris at hotmail dot com> wrote in message
news:OS**************@TK2MSFTNGP11.phx.gbl...

Does anyone know how to make an ASP.NET (C#) page expire immediately and not be cached?
What I want to happen is if the users pressed the BACK button they get a
page has expired and has to be reloaded message.
I've tried just placing the standard HTML meta tags in but that doesn't seem to work. I've also tried using the Cache objects properties too. That didn't seem to work either.

Anyone any ideas?

Thanks,
Gareth

[Tommy]

Place the following code at the top of your aspx page.

<% System.Web.HttpContext.Current.Response.AddHeader( "Cache-Control","no-cache")
System.Web.HttpContext.Current.Response.Expires = 0
System.Web.HttpContext.Current.Response.Cache.SetN oStore()
System.Web.HttpContext.Current.Response.AddHeader( "Pragma", "no-cache")%>

Tommy,

"Gareth" <gcparris at hotmail dot com> wrote in message news:<OS**************@TK2MSFTNGP11.phx.gbl>...

Does anyone know how to make an ASP.NET (C#) page expire immediately and not
be cached?
What I want to happen is if the users pressed the BACK button they get a
page has expired and has to be reloaded message.
I've tried just placing the standard HTML meta tags in but that doesn't seem
to work. I've also tried using the Cache objects properties too. That didn't
seem to work either.

Anyone any ideas?

Thanks,
Gareth