Application variable caching problem. What's going on?
- From: Oberon <oberon@xxxxxxxxxxxx>
- Date: Wed, 11 May 2005 12:22:42 GMT
1) I had my browser cache off.
Tools, Internet Options, General, Settings, Check for newer
versions of stored pages - every visit to the page.
2) I switched off IIS caching (see below)
3) I set my HTTP headers (see below)
4) Finally I added even more lines to index.aspx (see new
version below).
5) Restarted IIS, just for good measure.
Nothing worked. Still the same obsolete application variable
shown. Eventually I renamed the application variable to
Application("dbConnString")) - effectively killing the old one.
That worked, but before that, altering the value in the
Application variable did nothing. eg.
Application("ChatConnString") =
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" &
Server.MapPath("\")
still gave the wrong value.
Now (after renaming the Application variable) the Index.aspx
page is showing nothing, which is an improvement on it showing
the wrong value but ... why didn't the value change when I
re-coded it in Global.aspx.vb.
I'm totally baffled.
+ + + + + + +
New Index.aspx with more code to kill cached pages.
+ + + + + + +
<%@ Page Language="vb" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<meta http-equiv=Content-Type content="text/html;
charset=windows-1252">
<meta http-equiv="Pragma" content="no-cache">
<meta http-equiv="Expires" content="-1">
<title>Chat Simple</title>
</HEAD>
<BODY>
<% Response.CacheControl = "no-cache" %>
<% Response.Expires = -1 %>
<%Response.Write(Application("dbConnString"))
Response.End %>
</BODY></HTML>
+ + + + + + +
The only thing that actually worked
On Wed, 11 May 2005 11:40:01 GMT, Oberon <oberon@xxxxxxxxxxxx>
wrote:
>Why does this not work as it should?
>
>I expect index.aspx to show:.
>
>Provider=Microsoft.Jet.OLEDB.4.0;Data
>Source=c:\inetpub\wwwroot\ChatSimple\db\chatusers.mdb
>
>Instead, I get:
>
>Provider=Microsoft.Jet.OLEDB.4.0;Data
>Source=c:\inetpub\wwwroot\ChatSimple\chatusers.mdb\chatusers.mdb
>
>It is running on Windows XP Pro, SP1, IE6.
>
>
>1) IIS has been set with:
>
>ChatSimple, Properties, HTTP Headers, Enable Content Expiration
>(ticked), Content Should "Expire Immediately"
>
>Then restarted from the cmd line with:
>net stop W3SVC
>net start W3SVC
>
>
>2) Here is the Global.asax.vb
>
> + + + + + + +
>
>Imports System.Web
>Imports System.Web.SessionState
>
>Public Class Global
> Inherits System.Web.HttpApplication
>
> Public Sub New()
> MyBase.New()
> InitializeComponent()
> End Sub
>
> Private components As System.ComponentModel.IContainer
> <System.Diagnostics.DebuggerStepThrough()> Private Sub
>InitializeComponent()
> components = New System.ComponentModel.Container()
> End Sub
>
> Sub Application_Start(ByVal sender As Object, ByVal e As
>EventArgs)
> Application("ChatConnString") =
>"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" &
>Server.MapPath("/db/ChatUsers.mdb")
> End Sub
>
>End Class
>
> + + + + + + +
>
>3) Here is the index.aspx page:
>
> + + + + + + +
>
><%@ Page Language="vb" %>
><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
><HTML>
><HEAD>
> <meta http-equiv=Content-Type content="text/html;
>charset=windows-1252">
> <meta http-equiv="Pragma" content="no-cache">
> <meta http-equiv="Expires" content="-1">
> <title>Chat Simple</title>
></HEAD>
><BODY>
><%Response.Write(Application("ChatConnString"))
> Response.End %>
></BODY></HTML>
>
> + + + + + + +
.
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