Re: How to call a Sub function from .ASPX file ?

Hi Kevin,

This article is what you need when using asp.net 1.1

http://aspnet.4guysfromrolla.com/articles/122403-1.aspx

It gest even simpler if you use asp.net v2. In this cas just drop the class file in the App_Code directory and you can call them everywhere.

Let me know if you have any more questions...

Cheers,
Tom Pester

You're not thinking fourth-dimensionally! (- Back to the Future)

Actually, you're not thinking Object-Orientationally.

ASP.Net is object-oriented, and you'd better get acquainted with it,
or you'll be visiting here almost daily, and writing crappy code until
you do. Let me elaborate, if you will:

Files are source code. Your application doesn't have files. It has
classes. A file defines a class, but IS not a class. A class is a data
type, and exists in the context of a running application. So, when
you're talking about how your application works, the first thing you
need to do is think about classes, not files. A file can contain one
or MORE class definitions, and you need to get acquainted with classes
to be successful with .Net.

Classes are very important in .Net programming; Objects are made from
classes, and classes provide encapsulation. Object-oriented
programming can get pretty darned complex, and encapsulation can save
you a lot of grief, by hiding those things which need hiding from
those things that don't need them.

If you have a file with a bunch of Subs and Functions in it, you need
to create a class with Subs and Functions in it. These Subs and
Functions can be Shared (meaning that they are singleton objects that
don't require a class instance to operate), or they can be Instance
(meaning that an instance of the class containing them must be created
in order to use them). The advantage to Shared data and process is
that it doesn't require a class instance, and is, in essence "global,"
available to the entire application. This is also the disadvantage of
Shared data and process. Anything can get to it, and change it, and in
a multi-threaded app (unlike VB 6, .net is multi-threaded), this can
cause all sorts of problems. Unless you're familiar with the issues, I
would stick with classes that require instantiation. Instantiation is
the process of creating a copy (instance) of a class that is limited
in its scope (availability), and is thread-safe.

Once you create an instance of a class, you can access any Public or
Friend (Friend is more protected than Public, but you shouldn't run
into issues right away) members from any other class that references
the instance.

From your question, and the code you posted, I can see that you
require a good bit more education and practice. I would recommend the
.Net SDK, a free download from:

http://www.microsoft.com/downloads/details.aspx?FamilyId=9B3A2CA6-3647
-4070-9F41-A333C6B9181D&displaylang=en

It is extremely important to know the difference between ASP and
ASP.Net, between VBScript or VB 6, and VB.Net. The first are
procedural, single-threaded, and easy to use for small applications.
.Net is object-oriented, multi-threaded, and easy to use once you
spend a great deal of time studying it, but incredibly hard to use if
you don't.

Kevin Spencer
Microsoft MVP
.Net Developer
Everybody picks their nose,
But some people are better at hiding it.
"bienwell" <bienwell@xxxxxxxxxxx> wrote in message
news:O7QlcGdnFHA.1480@xxxxxxxxxxxxxxxxxxxxxxx

Hi,

I have a question about file included in ASP.NET.   I have a file
that includes all the Sub functions (e.g  FileFunct.vb).  One of  the
functions in this file is :

Sub TestFunct(ByVal strInput As String)
return (strInput & " test")
End Sub
I'd like to call this function in  FileFunct.vb  from another .ASPX
file like this :

<%@ import Namespace="System" %>
<%@ import Namespace="System.Data" %>
<html>
<head>
<title>Test page</title>
</head>
<body>
<script runat="server" language="VB"  scr="FileFunct.vb" >
Sub Page_Load(s As Object, e As EventArgs)
Dim result=TestFunct("This is a string")
response.write("<BR>result ==> " & result)
End Sub
</script>
</body>
</html>
I've got this error:

Server Error in '/' Application.
---------------------------------------------------------------------
------- ----

Compilation Error
Description: An error occurred during the compilation of a resource
required
to service this request. Please review the following specific error
details
and modify your source code appropriately.
Compiler Error Message: BC30451: Name 'TestFunct' is not declared.

Source Error:

Line 18: Sub Page_Load(s As Object, e As EventArgs)
Line 19:
Line 20: Dim result=TestFunct("This is a string")
Line 21:     response.write("<BR>Result ==> " & Result)
Line 22:
I have a single .ASPX file and I don't use Visual studio. NET in this
case.
Can I do that ?
Thanks in advance.



.

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