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

I'm afraid anything but Best Practices is outside of my purview.

--
HTH,

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:eu$mkxdnFHA.3256@xxxxxxxxxxxxxxxxxxxxxxx
> Kevin,
>
> Last time I put all the files in my application (project name) using
> Visual
> Studio.NET, declared a class (AClass) which has some functions, and saved
> them in a file (.vb file). My program worked fine when I called the
> function
> from my other .vb files (AClass.Function1, ...). My application was
> Object-Oriented well development. Now, I'd like to try another way :
> creating .ASPX file that contains VB.NET script, HTML and call one
> function
> from another .vb file without using Visual Studio.NET. Can I do that and
> How
> ? It's my question.
>
>
>
>
> "Kevin Spencer" <kevin@xxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
> news:u7oOtbdnFHA.2472@xxxxxxxxxxxxxxxxxxxxxxx
>> 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.
>>
>> --
>> HTH,
>>
>> 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.
>> >
>> >
>>
>>
>
>


.

Relevant Pages