RE: Reuse code on multiple pages of project

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Hello Tim -

Thanks so much for your time! I finally got it to work.

Thanks also for the book suggestions!
--
Sandy


"Tom.PesterDELETETHISSS@xxxxxxxxxx" wrote:

> In one of the previous posts I mentioned a link to 4guys. Thats a good practical
> start. I thnk there is lots of good content on the internet about OO.
>
> Try to read as much as you can about OO cause it takes a while to realy start
> thinking OO.
>
> Here you will find some other great resources :
> http://groups-beta.google.com/group/microsoft.public.dotnet.framework.aspnet/browse_frm/thread/425ac63cf104c958/9c3d1da01c29884a?q=ASP.NET+2.0+reading+material...&rnum=1&hl=en#9c3d1da01c29884a
>
> I can recommend the books of Jesse Liberty :
> http://www.libertyassociates.com/pages/Books.htm
>
> Learning Visual Basic.NET seems a good title after which you can switch to
> Programming ASP.NET 2nd Edition.
> Try to look into the book before buying it cause I may be wrong. I dont know
> what you exactly need.
>
> I cant see your source but I think you didnt declare the function public.
> If you didnt specify and access modifier it defaults to private.
> That's OO lingo again...
>
> I wrote a small sample with version 2 of asp.net (switch to it if you can)
> but it should work in VS 2003
>
> ==================== Start of file MyLibrary.vb ===========================
>
> Namespace CommonFunctions
>
> Public Class MyLibrary
>
> ' Make the sub public so you can call the sub if you want to call
> it from the outside
> ' Make it shared so you dont have to instantiate the class to an
> object
> Public Shared Sub Hello()
>
>
> HttpContext.Current.Response.Write("Hi there")
>
> End Sub
>
>
> End Class
>
> End Namespace
> ==================== End of file MyLibrary.vb ===========================
> ==================== Start of file consume.aspx ===========================
>
> <%@ Page Language="VB" %>
> <%@Import Namespace="CommonFunctions" %>
>
>
> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd";>
>
> <script runat="server">
>
> </script>
>
> <html xmlns="http://www.w3.org/1999/xhtml"; >
> <head runat="server">
> <title>Untitled Page</title>
> </head>
> <body>
> <form id="form1" runat="server">
> <div>
> <%
> MyLibrary.Hello()
> %>
> </div>
> </form>
> </body>
> </html>
> ==================== End of file consume.aspx ===========================
>
> I didnt use a code behind file to keep things simple.
>
> Cheers,
> Tom Pester
>
> > Hi Tom -
> >
> > Thanks again for responding. Okay. The error is cause by an OO
> > issue.
> >
> > What do I put in my vb code behind page exactly? I tried using
> > RFELIB.SetFocus(txtFirstName) and when I type the dot after RFELIB I
> > get "Equals" and "ReferenceEquals" as choices.
> >
> > Do you know any good books on this subject? I have eight books and
> > out of those eight, although they discuss classes and inheritance,
> > etc., all they give are car and cat/dog/animal examples which never
> > connect up to using an instance on a page.
> >
> > "Tom.PesterDELETETHISSS@xxxxxxxxxx" wrote:
> >
> >> Hi Sandy,
> >>
> >>> What I don't understand about it is, for instance, he has
> >>> <%@ Import Namespace="ASPNet101" %>
> >>> <%@ Assembly src="LIB.vb" %>
> >>> Am I supposed to put that in the HTML page, or put the Imports in
> >>> the
> >>> vb
> >>> code behind page instead . . . or both?
> >> You just need to tell the compiler where the functions are located in
> >> the
> >> page you are using the common functions.
> >> If you place the class file in the bin directory than asp.net will
> >> automaticly
> >> compile that class each time the application runs and make it
> >> available to
> >> the whole app.
> >> So <%@ Assembly src="LIB.vb" %> isn't striclty necessary unless you
> >> want
> >> to reference code thats in a directory outside the bin.
> >> <%@ Import Namespace="ASPNet101" %> is necessary cause it tells the
> >> compiler
> >> where to look if you write a function name.
> >> You are saying with that statement that you want to make the classes
> >> available
> >> to you in that page.
> >>> If I can possibly impose on you further, could you peruse my code
> >>> again and see where I made a mistake? What is causing the
> >>> "squiggly" error?
> >>>
> >> The error is caused by and OO issue. Remember that asp.net is OO
> >> based so it supports inheritance, encapsulation,etc. When you say
> >> that a method is shared, like you do with SetFocus, you make it so
> >> that the user of that function doesnt have to instantiate the class
> >> to an object to use the function (again this is OO lingo which you
> >> got to get familiar with). But RegisterStartupScript is not a shared
> >> function so it needs to be coupled to an object.
> >>
> >> If you remove the shared keyword from SetFocus than the error will be
> >> gone.
> >>
> >> I know why you put the shared keyword there cause you want to call
> >> common functions as if they were baked in the runtime and not create
> >> an object firs. But I set you on the wrong foot with my first reply
> >> so abondon Scotts article and try to grasp the asp101. I bet this is
> >> what you want.
> >>
> >> So to sum it up : Write a class file (.vb) and put it in the bin
> >> directory.
> >> Put your class in a namespace and make all its functions shared.
> >> In the page that you want to use the functions use the import
> >> namespace directive.
> >> Now you can use the functions like this :
> >> classX.functionX
> >>
> >> Let me know if you have any more questions.. but I suggest you read
> >> everything you can about asp.net and its OO features cause I can't
> >> write good tutorials :)
> >>
> >> Cheers,
> >> Tom Pester
>
>
>
.

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