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Moving code to App_Code

In a web application I have a page Page21.aspx which has code associated with it in Page21.aspx.vb. This code works fine so long a it is on Page21.aspx.vb.

I need to put in similar pages Page22.aspx, Page23.aspx etc. Rather than copy all the vba each time, I modified the code on Page21.aspx.vb to call up the common vba routines which I have now placed in App_Code.

Now I see some problems. In particular the system does not like "cache". I often use instructions like cache("jobbo")=nr to pass number from one part of the code to another. While this was OK on Page21.aspx.vb, it seems to think that cache is somehow ambiguous when in App_code:

Error      17      'Cache' is ambiguous, imported from the namespaces or types 'System.Web.HttpContext, System.Web.HttpResponse'.

The second immediate problem is that response.redirect("PageG300.aspx") shows response as "non-shared member requires an object reference". Why ? And what reference should I give ?

There is something about App_Code that I have missed. I seem as though I haven't declared something, but I don't understand what, and I'm not sure where to look.
.NET ProgrammingMicrosoft Development

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8/22/2022 - Mon

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