Remove whitespace from your pages

Hi Mads, Good for us that you have such obsessions ;-) Thanks for sharing. Why don't you put this code in one of the modules that already in the site? Miron

I concer with Miron

I like the idea, but would love to see some stats on this - how does the increased rendering time server-side compare to the time saved client-side?

Thanks for sharing Mads, I was waiting for a 360° solution like this :)

I use this sometimes, but I think you need to be careful about spaces inside TEXTAREA.

@Michel, this technique does not change anything inside a TEXTAREA. I've also had that problem before so this version will not break things like that.

Im using: System.IO.StringWriter stringWriter = new System.IO.StringWriter(); System.Web.UI.HtmlTextWriter htmlWriter = new System.Web.UI.HtmlTextWriter(stringWriter); base.Render(htmlWriter); System.Text.StringBuilder htmlData = new System.Text.StringBuilder(stringWriter.ToString()); .. move postbeck controls downpage //remove whitespace html.Replace(" ", String.Empty); html.Replace("\t", String.Empty); html.Replace("\r\n", String.Empty); writer.Write(htmlData.ToString()); .. Do you thing REGEX is faster like stringreplace?

@spybot I think Regex is faster.

Having issues with AJAX postback. For now I put in a condition to not do anything for Request["HTTP_X_MICROSOFTAJAX"] == null and seems to work. Might be nice to do the same for AJAX returns though - prolly some regex magic needed.

This piece of code isn't working for me in textareas where you include more than one line break: private static readonly Regex REGEX_LINE_BREAKS = new Regex(@"\n\s+", RegexOptions.Compiled); Right now i am using only the first regex, but it would be great to have a piece of code that solves this, without affecting the content in textareas.

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but when my page any contain javascript comment such as <script type="javascript"> // here is a line comment. var myComment = "a line comment"; alert(myComment); </script> when remove the "\n" it was changed to <script type="javascript">// here is a line comment. var myComment = "a line comment"; alert(myComment);</script> so... javascript error. how ???

Converted to VB.net and works perfect! Thank you!!

Hi, I really would like to use this, but i have one problem and i think you are the guru so i will explain you: I need to remove tabs, whitespaces, and line breaks but only for the text outside the tags <report></report> (this is non standard i think, but we use it on a specific platform to generate reports) So the content: [quote] < p align = "center" > Hello World!!< /p > Follows is the report : <report> Hello everybody the balance is : 250.00 usd You can use it until tomorrow Regards </report>[/quote] This should finish like this: [quote] <p align="center">Hello World!!</p>Follows is the report:<report> Hello everybody the balance is : 250.00 usd You can use it until tomorrow Regards </report> [/quote] I hope you can answer me Mads or someone other with expertise. Thank you very much!

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The idea is good and worth trying. But check twice before going live. This method ruins your ajax and javascript if you use any.

ASP.NET MVC: Remove Page Whitespace I just spent a whole 4 hours trying to figure out the best way to get my whitespace off my rendered HTML

Have you been able to get this to work with AJAX? I dosen't work for postbacks

I'll second Nino's comment: has anyone gotten a whitespace removal solution to work with ASP.NET AJAX postbacks? Yes, there are ways to make whitespace removal work for the standard requests and be disabled for AJAX requests, but I've been unable to find a solution that will successfully trim the whitespace in AJAX postbacks.

Thanks for the great article, it has been really useful in the sites that I have developed. I struggled on the asp.net AJAX post-back for a while until I looked at the source code for the page and noticed that the function [quote]__doPostBack[/quote] was surrounded by JavaScript comments //. [quote]//<![CDATA[ var theForm = document.forms['aspnetForm']; if (!theForm) { theForm = document.aspnetForm; } function __doPostBack(eventTarget, eventArgument) { if (!theForm.onsubmit || (theForm.onsubmit() != false)) { theForm.__EVENTTARGET.value = eventTarget; theForm.__EVENTARGUMENT.value = eventArgument; theForm.submit(); } } //]]> [/quote] After the white space compression has removed tabs, newlines etc the JavaScript above appears on one line. This makes the whole thing appear as a comment and therefore the reason you get problems with post backs in .Net when using AJAX. The solution I wrote for my sites is: [quote] html = REGEX_BETWEEN_TAGS.Replace(html, "> <"); html = REGEX_LINE_BREAKS.Replace(html, string.Empty); html = html.Replace("\r", ""); html = html.Replace("//<![CDATA[", ""); html = html.Replace("//]]>", ""); html = html.Replace("\n", "");[/quote]

Nutzlosen Whitespace zur Laufzeit aus dem HTML entfernen Nutzlosen Whitespace zur Laufzeit aus dem HTML entfernen

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