Weird. When I try adding your code in a macro I get the "&" nicely displayed.

Showing the whole code:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xsl:Stylesheet [ <!ENTITY nbsp "&#x00A0;"> ]>
<xsl:stylesheet version="1.0"  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"  xmlns:msxsl="urn:schemas-microsoft-com:xslt"  xmlns:umbraco.library="urn:umbraco.library"   
exclude-result-prefixes="msxsl umbraco.library">  

<xsl:output method="html" omit-xml-declaration="yes"/>

<xsl:param name="currentPage"/>
<xsl:template match="/">
<xsl:value-of select="umbraco.library:RegisterStyleSheetFile('Style_tiny', '/css/Style_tiny.css')"/>

<!-- start writing XSLT -->
<xsl:if test="$currentPage/data [@alias = 'galImages'] != ''">
<div id="imageList">
<xsl:variable name="images" select="number($currentPage/data [@alias = 'galImages'])"/>
<xsl:variable name="bigW" select="number($currentPage/data [@alias = 'bigPicW'])"/>
<xsl:variable name="bigH" select="number($currentPage/data [@alias = 'bigPicH'])"/>

<xsl:variable name="thumbW" select="number($currentPage/data [@alias = 'thumbW'])"/>
<xsl:variable name="wrapperH" select="number($currentPage/data [@alias = 'wrapperH'])"/>

<xsl:if test="$currentPage/data [@alias = 'galImages'] != 0">
<ul id="slideshow">
<xsl:for-each select="umbraco.library:GetMedia($images, 'true')/node">
 <xsl:variable name="theNode" select="."/>
 <xsl:variable name="picFile" select="./data[@alias='umbracoFile']"/>
 <xsl:variable name="picW" select="./data[@alias='umbracoWidth']"/>
 <xsl:variable name="picH" select="./data[@alias='umbracoHeight']"/>

 <li>
      <xsl:variable name="FullImage" select="concat(substring-before(data[@alias='umbracoFile'],'.'), '_thumb_800.jpg')"/>
    <xsl:variable name="GenImage">
    /umbraco/imageGen.aspx?image=<xsl:value-of select="$FullImage" />&amp;height=400&amp;constrain=true 
    </xsl:variable>
    <h3>Rapido</h3>
    <span><xsl:value-of select="$GenImage" /></span>
    <p>Exterior</p>
    <a href="#">
    <img>
    <xsl:attribute name="src">/umbraco/imageGen.aspx?image=<xsl:value-of select="$FullImage"/>&amp;width=<xsl:value-of select="100"/>&amp;height=<xsl:value-of select="75"/>&amp;constrain=true</xsl:attribute>
    </img>
    </a>
  </li>
</xsl:for-each> 
</ul>
</xsl:if>  
</div>
 <div id="wrapper">
  <div id="fullsize">
   <div id="imgprev" class="imgnav" title="Föregående bild"></div>
   <div id="imglink"></div>
   <div id="imgnext" class="imgnav" title="Nästa bild"></div>
   <div id="image"></div>
   <div id="information">
    <h3></h3>
    <p></p>
   </div>
  </div>
  <div id="thumbnails">
   <div id="slideleft" title="Scrolla vänster"></div>
   <div id="slidearea">
    <div id="slider"></div>
   </div>
   <div id="slideright" title="Scrolla höger"></div>
  </div>
 </div>
<xsl:value-of select="umbraco.library:RegisterJavaScriptFile('Compressed', '/scripts/compressed.js')"/>
<script type="text/javascript"> 
//$(document).ready(function()
//$(function()
{
 $('slideshow').style.display='none';
 $('wrapper').style.display='block';
 var slideshow=new TINY.slideshow("slideshow");
 window.onload=function(){
  slideshow.auto=true;
  slideshow.speed=100;
  slideshow.link="linkhover";
  slideshow.info="";
  slideshow.thumbs="slider";
  slideshow.left="slideleft";
  slideshow.right="slideright";
  slideshow.scrollSpeed=15;
  slideshow.spacing=5;
  slideshow.active="#fff";
  slideshow.init("slideshow","image","imgprev","imgnext","imglink");
 }

}
//});
</script>
</xsl:if>

</xsl:template>

</xsl:stylesheet>

This actually is not a problem, using & in a URL is perfectly valid.

The only problem I always have with building a variable like this is that sometimes this:

<xsl:variable name="GenImage">
    /umbraco/imageGen.aspx?image=<xsl:value-of select="$FullImage" />&amp;height=400&amp;height=400&amp;constrain=true 
</xsl:variable>

Turns into this:

<xsl:variable name="GenImage">
    /umbraco/imageGen.aspx?image=
    <xsl:value-of select="$FullImage" />
    &amp;height=400&amp;height=400&amp;constrain=true 
</xsl:variable>

And then you get line breaks in the URL, which most browsers don't handle to well, so I wrap the string into <xsl:text> blocks:

<xsl:variable name="GenImage">
    <xsl:text>/umbraco/imageGen.aspx?image=</xsl:text>
    <xsl:value-of select="$FullImage" />
    <xsl:text>&amp;height=400&amp;height=400&amp;constrain=true</xsl:text>
</xsl:variable>

Anyway, my ImageGen URL's look exactly the same as yours, including the &amp; notation and they work just fine.

Look at this link:
http://www.eabussar.se/umbraco/imageGen.aspx?image=/media/8145/hp 001 kopia_thumb_800.jpg&amp;height=400&amp;constrain=true

The image is not 400 high but if i strip the &amp; and replace with & then it works?

New link....
http://www.eabussar.se/umbraco/imageGen.aspx?image=/media/8313/exterior_thumb_800.jpg&amp;height=400&amp;constrain=true

I have this problem too, though I've been using image gen for many different projects, so maybe it's been a long day.

If you follow froads link above the image is not resized until you change the 'amp' in FF, Chrome & IE.

Any ideas?

Rich

Kinda answering my own question (yes, it's been a long day)

The images get resized correctly when they are called within html, but not when the image url is used directly in a browser. 

Anyone know a work around for this and a way to get '&' into XSLT?

Rich

Here's a solution if anyone needs it

&

Usage like this

    /umbraco/imagegen.ashx?image=/media/2979/Crowd_1841.jpg&width=200

Might be a better way but works for me.

Rich

Editing my post killed the code, so here it is again (not talking to myself...)

Here's a solution if anyone needs it

<xsl:text disable-output-escaping="yes">&amp;</xsl:text>

Usage like this

<img>
    <xsl:attribute name="src">/umbraco/imagegen.ashx?image=/media/2979/Crowd_1841.jpg<xsl:text disable-output-escaping="yes">&amp;</xsl:text>width=200</xsl:attribute>
</img>

Might be a better way but works for me.

Rich

Ok, ignore me, seems that the above doesn't work either, time to quit for the day.

Ok, this should do it

<xsl:variable name="image">
            <xsl:text>&lt;img src='/umbraco/imageGen.aspx?image=</xsl:text>
            <xsl:value-of select="$url" />
            <xsl:text>&amp;height=200&amp;width=200&amp;constrain=true'/&gt;</xsl:text>
</xsl:variable>

<xsl:value-of select="$image" disable-output-escaping="yes"/>

Rich

Wow really glad I found this post. Just what I was looking for. Thank you!

Jeroen

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