PHP's output buffer and ASP.NET's Response.OutputStream

kellygreer1 · Joined: 17 Nov 2007 Posts: 2

PHP will alllow you to build up an entire page and before sending that
out as the response.... you can grab all the text and do search and
replaces, add comments, make more CSS/XHTML compliant, etc...

I have bee trying to do the same thing in ASP.NET by manipulating the
Response.OutputStream.
I keep getting the error:
Exception Details: System.ArgumentException: Stream was not readable.
On this line:
StreamReader sr = new StreamReader(Response.OutputStream, true);

What is the correct way to read from this stream? and then push back
in your own contents and then let the Response complete?

Thanks,
Kelly Greer
kellygreer1@nospam.com
replace nospam with yahoo

Archived from group: microsoft>public>dotnet>framework>aspnet

"John Timney \ · Joined: 28 Sep 2007 Posts: 5

You can do that by overriding the render event, completly replacing the HTML
should you choose to do so.....or in an ihttpmodule you can add a
response.filter method

http://microsoft.apress.com/asptodayarchive/73666/enforcing-xhtml-compliance-in-aspnet-applications

Regards

John Timney (MVP)
http://www.johntimney.com
http://www.johntimney.com/blog

"kellygreer1" wrote in message @p69g2000hsa.googlegroups.com...
> PHP will alllow you to build up an entire page and before sending that
> out as the response.... you can grab all the text and do search and
> replaces, add comments, make more CSS/XHTML compliant, etc...
>
> I have bee trying to do the same thing in ASP.NET by manipulating the
> Response.OutputStream.
> I keep getting the error:
> Exception Details: System.ArgumentException: Stream was not readable.
> On this line:
> StreamReader sr = new StreamReader(Response.OutputStream, true);
>
> What is the correct way to read from this stream? and then push back
> in your own contents and then let the Response complete?
>
> Thanks,
> Kelly Greer
> kellygreer1@nospam.com
> replace nospam with yahoo

kellygreer1 · Joined: 17 Nov 2007 Posts: 2

On Dec 12, 2:02 pm, "John Timney \(MVP\)"
wrote:
> You can do that by overriding the render event, completly replacing the HTML
> should you choose to do so.....or in an ihttpmodule you can add a
> response.filter method
>
> http://microsoft.apress.com/asptodayarchive/73666/enforcing-xhtml-com...
>
> Regards
>
> John Timney (MVP)http://www.johntimney.comhttp://www.johntimney.com/blog
>
> "kellygreer1" wrote in message
>
> @p69g2000hsa.googlegroups.com...
>
> > PHP will alllow you to build up an entire page and before sending that
> > out as the response.... you can grab all the text and do search and
> > replaces, add comments, make more CSS/XHTML compliant, etc...
>
> > I have bee trying to do the same thing in ASP.NET by manipulating the
> > Response.OutputStream.
> > I keep getting the error:
> > Exception Details: System.ArgumentException: Stream was not readable.
> > On this line:
> > StreamReader sr = new StreamReader(Response.OutputStream, true);
>
> > What is the correct way to read from this stream? and then push back
> > in your own contents and then let the Response complete?
>
> > Thanks,
> > Kelly Greer
> > kellygre...@nospam.com
> > replace nospam with yahoo

Thanks for the info. So when you Override the Render method is this
the only place where you can manipulate the Response.OutputStream? or
do you get the existing "Rendered Text" as a String from somewhere
else?

Thanks,
Kelly

"John Timney \ · Joined: 28 Sep 2007 Posts: 5

Each control has a render method, as does page. Heres an example you can
add to a page to see the results.

protected override void Render(HtmlTextWriter writer) {
// extract all html and override News List
System.IO.StringWriter str = new System.IO.StringWriter();
HtmlTextWriter wrt = new HtmlTextWriter(str);
// render html
base.Render(wrt); //CAPTURE THE CURRENT PAGE HTML SOURCE AS STRING
wrt.Close();
string html = str.ToString();
html = html.Replace("text", "TEXT");
// write the new html to the page
writer.Write(html);
}

Regards

John Timney (MVP)
http://www.johntimney.com
http://www.johntimney.com/blog

"kellygreer1" wrote in message @l1g2000hsa.googlegroups.com...
> On Dec 12, 2:02 pm, "John Timney \(MVP\)"
> wrote:
>> You can do that by overriding the render event, completly replacing the
>> HTML
>> should you choose to do so.....or in an ihttpmodule you can add a
>> response.filter method
>>
>> http://microsoft.apress.com/asptodayarchive/73666/enforcing-xhtml-com...
>>
>> Regards
>>
>> John Timney (MVP)http://www.johntimney.comhttp://www.johntimney.com/blog
>>
>> "kellygreer1" wrote in message
>>
>> @p69g2000hsa.googlegroups.com...
>>
>> > PHP will alllow you to build up an entire page and before sending that
>> > out as the response.... you can grab all the text and do search and
>> > replaces, add comments, make more CSS/XHTML compliant, etc...
>>
>> > I have bee trying to do the same thing in ASP.NET by manipulating the
>> > Response.OutputStream.
>> > I keep getting the error:
>> > Exception Details: System.ArgumentException: Stream was not readable.
>> > On this line:
>> > StreamReader sr = new StreamReader(Response.OutputStream, true);
>>
>> > What is the correct way to read from this stream? and then push back
>> > in your own contents and then let the Response complete?
>>
>> > Thanks,
>> > Kelly Greer
>> > kellygre...@nospam.com
>> > replace nospam with yahoo
>
> Thanks for the info. So when you Override the Render method is this
> the only place where you can manipulate the Response.OutputStream? or
> do you get the existing "Rendered Text" as a String from somewhere
> else?
>
> Thanks,
> Kelly

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