ASP.NET is a kind of "engine" that takes declarative markup and code and
renders these instructions into presentational forms. And every page is a
class.
With that in mind I'm wondering,
a) how to intercept the rendered output and do further programmatic things
with it;
and
b) how coarse or finely grained the control might be. One could envision the
ASP.NET designers giving you programmatic access to subselections of the
page HTML (e.g. <head> ... </head> <body> ... </body> ). Maybe even a page
hieararchy.
I'm interested in rendering content into various non-HTML forms (pdf, Flash
text, multipart mails) and I'd like the ASP.NET engine to do the hard work
of preprocessing some of this content; these ideas are especially
interesting with the availability of skins, themes, and master pages in
asp.net 2.0.
Barring programmatic access, I suppose I can yank what I want using regular
expressions, but I'm curious if there's a better way.
Thanks,
-KF
4  1377 
You could certainly use httphandlers to intercept the outgoing
stream and modify it. This article is a bit off topic but the
code sample does demonostrate how and where to do this: http://www.eggheadcafe.com/articles/hijacksession.asp
You could also load the rendered output into a DOM
and work with it. http://www.eggheadcafe.com/articles/parsinghtml.asp
There are a variety of things you could do...
--
2004 and 2005 Microsoft MVP C#
Robbe Morris http://www.masterado.net
Earn $$$ money answering .NET Framework
messageboard posts at EggHeadCafe.com . http://www.eggheadcafe.com/forums/merit.asp
<ke*****@u.wash ington.edu> wrote in message
news:%2******** ********@tk2msf tngp13.phx.gbl. .. ASP.NET is a kind of "engine" that takes declarative markup and code and
renders these instructions into presentational forms. And every page is a
class.
With that in mind I'm wondering,
a) how to intercept the rendered output and do further programmatic things
with it;
and
b) how coarse or finely grained the control might be. One could envision
the ASP.NET designers giving you programmatic access to subselections of
the page HTML (e.g. <head> ... </head> <body> ... </body> ). Maybe even
a page hieararchy.
I'm interested in rendering content into various non-HTML forms (pdf,
Flash text, multipart mails) and I'd like the ASP.NET engine to do the
hard work of preprocessing some of this content; these ideas are
especially interesting with the availability of skins, themes, and master
pages in asp.net 2.0.
Barring programmatic access, I suppose I can yank what I want using
regular expressions, but I'm curious if there's a better way.
Thanks,
-KF
you can modify the HTML that is rendered to the screen in the "Render"
method of the page.
or if you want to alter the HTML of every page in your application you can
just inherit from a common base page.
you can definatly use regular expressions to change the HTML at this point.
HTH
cheers
martin.
<ke*****@u.wash ington.edu> wrote in message
news:%2******** ********@tk2msf tngp13.phx.gbl. .. ASP.NET is a kind of "engine" that takes declarative markup and code and
renders these instructions into presentational forms. And every page is a
class.
With that in mind I'm wondering,
a) how to intercept the rendered output and do further programmatic things
with it;
and
b) how coarse or finely grained the control might be. One could envision
the ASP.NET designers giving you programmatic access to subselections of
the page HTML (e.g. <head> ... </head> <body> ... </body> ). Maybe even
a page hieararchy.
I'm interested in rendering content into various non-HTML forms (pdf,
Flash text, multipart mails) and I'd like the ASP.NET engine to do the
hard work of preprocessing some of this content; these ideas are
especially interesting with the availability of skins, themes, and master
pages in asp.net 2.0.
Barring programmatic access, I suppose I can yank what I want using
regular expressions, but I'm curious if there's a better way.
Thanks,
-KF
the rendered output is just a i/o stream of the html content. you can do
anything you want to it, but you would have to reparse it.
the preRender event is the last change to modifiy in the memory model of the
"parsed" page. only items with a runat=server are parsed into the tree,
everty thiong between server objects is parsed as a literal
image the following html:
<html>
<head>
<link id=link1 runat=server href="foo.css" \>
</head>
<body>
<span id=span1 runat=server><f ont size=1>hi</font></span>
</body>
</html>
is parsed into 5 controls
l1 = new LiteralControl( "<html>\n<head> \n");
link1 = new HtmlGenericCont rol("link");
link1.ID = "link1"
link1.Attribute s.Add("href","f oo.css");
l2 = new LiteralControl( "</head>\n<body>") ;
span1 = new HtmlGenericCont rol("span");
span1.ID = "span1";
span1.InnerHtml = "<font size=1>hi</font>";
l3 = new LiteralControl( "</body>\n</head>");
these five controls will be added to the pages Controls collection.
-- bruce (sqlwork.com)
<ke*****@u.wash ington.edu> wrote in message
news:%2******** ********@tk2msf tngp13.phx.gbl. .. ASP.NET is a kind of "engine" that takes declarative markup and code and
renders these instructions into presentational forms. And every page is a
class.
With that in mind I'm wondering,
a) how to intercept the rendered output and do further programmatic things
with it;
and
b) how coarse or finely grained the control might be. One could envision
the ASP.NET designers giving you programmatic access to subselections of
the page HTML (e.g. <head> ... </head> <body> ... </body> ). Maybe even
a page hieararchy.
I'm interested in rendering content into various non-HTML forms (pdf,
Flash text, multipart mails) and I'd like the ASP.NET engine to do the
hard work of preprocessing some of this content; these ideas are
especially interesting with the availability of skins, themes, and master
pages in asp.net 2.0.
Barring programmatic access, I suppose I can yank what I want using
regular expressions, but I'm curious if there's a better way.
Thanks,
-KF
In ASP.NET 2.0 this can be done with the new Adapter rendering model. It's
intended to allow external code (the "adapter") control rendering when there
is an alternate client being used (such as a handheld device).
-Brock
DevelopMentor http://staff.develop.com/ballen ASP.NET is a kind of "engine" that takes declarative markup and code
and renders these instructions into presentational forms. And every
page is a class.
With that in mind I'm wondering,
a) how to intercept the rendered output and do further programmatic
things
with it;
and
b) how coarse or finely grained the control might be. One could
envision the
ASP.NET designers giving you programmatic access to subselections of
the
page HTML (e.g. <head> ... </head> <body> ... </body> ). Maybe even
a page
hieararchy.
I'm interested in rendering content into various non-HTML forms (pdf,
Flash text, multipart mails) and I'd like the ASP.NET engine to do the
hard work of preprocessing some of this content; these ideas are
especially interesting with the availability of skins, themes, and
master pages in asp.net 2.0.
Barring programmatic access, I suppose I can yank what I want using
regular expressions, but I'm curious if there's a better way.
Thanks,
-KF This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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