I'm developing a skin for DotNetNuke 5 using the DNN Done Right menu component which uses an custom XSL-T to convert the XML sitemap into an HTML navigation.
Using XSL-T is a life saver in comparison to the other ways of building a navigation menu. However I've run into problems doing something a little more complex, as I'm a newcomer to XML-T and XPath.
What I'm trying to achieve is this:
- Ignore level 0 nodes
- Loop through all level 1 nodes in the selected hierarchy
- Once the selected level 1 node is found, start looping through the hierarchy/breadcrumb structure up to the active level.
- Once at the active node level, loop through and show all the siblings of that level
- Then finish off looping through the level 1 nodes
Below is a example XML block of a sitemap the menu component uses.
<Root>
<root>
<node id="37" text="Home" url="http://www.dnndoneright.com/Home.T37.aspx" enabled="1" selected="0" breadcrumb="0" first="1" last="0" only="0" depth="0" >
<description >Upgrade your standard DNN menu - automatically and for free - to an SEO-optimised, accessible, mobile-friendly, cross-browser menu.</description>
</node>
<node id="56" text="DNN Menu" url="http://www.dnndoneright.com/DNN-Menu.T56.aspx" enabled="1" selected="0" breadcrumb="1" first="0" last="0" only="0" depth="0" >
<node id="97" text="Menu features" url="http://www.dnndoneright.com/Menu-features.T97.aspx" enabled="1" selected="0" breadcrumb="0" first="1" last="0" only="0" depth="1" />
<node id="111" text="Pre-built templates" url="http://www.dnndoneright.com/Pre-built-templates.T111.aspx" enabled="1" selected="0" breadcrumb="0" first="0" last="0" only="0" depth="1" >
<node id="94" text="Standard DNN menu, upgraded" url="http://www.dnndoneright.com/Standard-DNN-menu-upgraded.T94.aspx" enabled="1" selected="0" breadcrumb="0" first="1" last="0" only="0" depth="2" />
<node id="124" text="Superfish template" url="http://www.dnndoneright.com/Superfish-template.T124.aspx" enabled="1" selected="0" breadcrumb="0" first="0" last="0" only="0" depth="2" />
<node id="106" text="Treeview template" url="http://www.dnndoneright.com/Treeview-template.T106.aspx" enabled="1" selected="0" breadcrumb="0" first="0" last="0" only="0" depth="2" />
<node id="107" text="Accordion template" url="http://www.dnndoneright.com/Accordion-template.T107.aspx" enabled="1" selected="0" breadcrumb="0" first="0" last="0" only="0" depth="2" />
<node id="112" text="Dropdown template" url="http://www.dnndoneright.com/Dropdown-template.T112.aspx" enabled="1" selected="0" breadcrumb="0" first="0" last="0" only="0" depth="2" />
<node id="96" text="Mega-menu" url="http://www.dnndoneright.com/Mega-menu.T96.aspx" enabled="1" selected="0" breadcrumb="0" first="0" last="1" only="0" depth="2" />
</node>
<node id="113" text="Getting started" url="http://www.dnndonerigh开发者_如何学Pythont.com/Getting-started.T113.aspx" enabled="1" selected="0" breadcrumb="0" first="0" last="0" only="0" depth="1" >
<node id="114" text="Installing the menu" url="http://www.dnndoneright.com/Installing-the-menu.T114.aspx" enabled="1" selected="0" breadcrumb="0" first="1" last="0" only="0" depth="2" />
<node id="115" text="Upgrading a SolPart menu" url="http://www.dnndoneright.com/Upgrading-a-SolPart-menu.T115.aspx" enabled="1" selected="0" breadcrumb="0" first="0" last="0" only="0" depth="2" />
<node id="116" text="Upgrading a DNNMenu" url="http://www.dnndoneright.com/Upgrading-a-DNNMenu.T116.aspx" enabled="1" selected="0" breadcrumb="0" first="0" last="0" only="0" depth="2" />
<node id="117" text="Installing a template" url="http://www.dnndoneright.com/Installing-a-template.T117.aspx" enabled="1" selected="0" breadcrumb="0" first="0" last="0" only="0" depth="2" />
<node id="118" text="Adding to a skin" url="http://www.dnndoneright.com/Adding-to-a-skin.T118.aspx" enabled="1" selected="0" breadcrumb="0" first="0" last="1" only="0" depth="2" />
</node>
<node id="119" text="Customising templates" url="http://www.dnndoneright.com/Customising-templates.T119.aspx" enabled="0" selected="0" breadcrumb="1" first="0" last="1" only="0" depth="1" >
<node id="120" text="Standard options" url="http://www.dnndoneright.com/Standard-options.T120.aspx" enabled="1" selected="0" breadcrumb="0" first="1" last="0" only="0" depth="2" />
<node id="121" text="Specifying filenames" url="http://www.dnndoneright.com/Specifying-filenames.T121.aspx" enabled="1" selected="0" breadcrumb="0" first="0" last="0" only="0" depth="2" />
<node id="122" text="XML format" url="http://www.dnndoneright.com/XML-format.T122.aspx" enabled="1" selected="1" breadcrumb="1" first="0" last="0" only="0" depth="2" />
<node id="123" text="Creating custom templates" url="http://www.dnndoneright.com/Creating-custom-templates.T123.aspx" enabled="1" selected="0" breadcrumb="0" first="0" last="1" only="0" depth="2" />
</node>
</node>
<node id="87" text="Download" url="http://www.dnndoneright.com/Download.T87.aspx" enabled="1" selected="0" breadcrumb="0" first="0" last="0" only="0" depth="0" />
<node id="85" text="Contact" url="http://www.dnndoneright.com/Contact.T85.aspx" enabled="1" selected="0" breadcrumb="0" first="0" last="1" only="0" depth="0" >
<node id="129" text="Blog" url="http://www.dnndoneright.com/Blog.T129.aspx" enabled="1" selected="0" breadcrumb="0" first="1" last="0" only="0" depth="1" />
<node id="130" text="Forum" url="http://www.dnndoneright.com/Forum.T130.aspx" enabled="1" selected="0" breadcrumb="0" first="0" last="1" only="0" depth="1" />
</node>
</root>
</Root>
Also here is my (incorrect) starting point, just to expose my lack of XSL/XPath knowledge. (My code is wrong, because it lists all L1 nodes, rather than just the L1 nodes in the selected hierarchy)
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="html" />
<xsl:template match="/">
<div class="SideMenu">
<!-- Loop through all L1 nodes -->
<xsl:for-each select="Root/root/node/node">
<xsl:if test="@enabled='1'" >
<!-- Only use L1 in the current hierarchy -->
<div>
[ <xsl:value-of select="@text"/>: <xsl:value-of select="@depth"/> ]
</div>
</xsl:if>
</xsl:for-each>
</div>
</xsl:template>
</xsl:stylesheet>
The following assumes that there can only be one selected node in the input:
<xsl:stylesheet
version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
>
<xsl:template match="/">
<div class="SideMenu">
<!-- select all the siblings of the selected node -->
<xsl:apply-templates select="//node[@selected=1]/../node" />
</div>
</xsl:template>
<!-- nodes are turned into a <div> with some descriptive text -->
<xsl:template match="node">
<div>
<xsl:value-of select="concat('[ ', @text, ': ', ' ]')" />
</div>
</xsl:template>
</xsl:stylesheet>
Output for your sample XML:
<div class="SideMenu">
<div>[ Standard options: ]</div>
<div>[ Specifying filenames: ]</div>
<div>[ XML format: ]</div>
<div>[ Creating custom templates: ]</div>
</div>
A nested menu is easily created, but admittedly I'm not really sure what you want. If you post the desired output, I can see to it.
If you can post the actual output you'd expect to be seeing then it would help, but I think you might want something like this:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="root">
<div class="SideMenu">
<!-- Loop through level 1 nodes -->
<xsl:apply-templates select="//node[@depth=1]" mode="general" />
</div>
</xsl:template>
<xsl:template match="node" mode="general">
<xsl:choose>
<!-- If the currently selected node, show all siblings -->
<xsl:when test="@selected=1">
<xsl:apply-templates select="../node" mode="only" />
</xsl:when>
<!-- Otherwise show just this node -->
<xsl:otherwise>
<xsl:apply-templates select="." mode="only" />
</xsl:otherwise>
</xsl:choose>
<!-- Follow the breadcrumb down towards the currently selected node -->
<xsl:apply-templates select="node[@breadcrumb=1]" mode="general" />
</xsl:template>
<xsl:template match="node" mode="only">
<div>
[ <xsl:value-of select="@text"/>: <xsl:value-of select="@depth"/> ]
</div>
</xsl:template>
</xsl:stylesheet>
If that doesn't give you what you want, feel free to drop a question on the DNNDoneRight forums, that's what they're there for!
Thanks both for your responses. Unfortunately your code wasn't quite what I needed (most likely due to the complex nature of what I'm after and my inability to explain my requirements) - but thanks to your example code, I've got a deeper understanding of XSL-T and created the following:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="html" />
<xsl:template match="/">
<div class="SideMenu">
<!-- Loop through all L1 nodes -->
<xsl:for-each select="Root/root/node">
<xsl:if test="@enabled='1'" >
<xsl:if test="@breadcrumb='1'" >
<!-- Find active root node-->
<!-- L0 nodes: Don't ever show (These are the horizontal tabs) -->
<!-- Always show all children: L1 nodes -->
<xsl:apply-templates select="child::node()[@url]" mode="BaseNode" ></xsl:apply-templates>
</xsl:if>
</xsl:if>
</xsl:for-each>
</div>
</xsl:template>
<!-- Template: Base node -->
<xsl:template match="node" mode="BaseNode" >
<xsl:choose>
<xsl:when test="@breadcrumb='0'" >
<!-- Non-breadcrumb L1 node -->
<xsl:apply-templates select="." mode="NonShadedNode" ></xsl:apply-templates>
</xsl:when>
<xsl:when test="@breadcrumb='1'" >
<!-- Child which is part of hierarchy -->
<xsl:apply-templates select="." mode="ShadedNode" ></xsl:apply-templates>
<!-- Drill down through hierarchy of active nodes-->
<xsl:for-each select="descendant::node()[@url]">
<xsl:if test="@breadcrumb='1'" >
<!-- Is this the last node? If so, show children -->
<xsl:choose>
<xsl:when test="child::node()[@url]">
<!-- Not last node -->
<xsl:apply-templates select="." mode="ShadedNode" ></xsl:apply-templates>
</xsl:when>
<xsl:otherwise>
<!-- Last node: loop through all siblings -->
<!-- THIS LOOP DOESN'T WORK CORRECTLY -->
<xsl:for-each select="preceding-sibling::node()" >
<xsl:apply-templates select="." mode="ShadedNode" ></xsl:apply-templates>
</xsl:for-each>
<xsl:apply-templates select="." mode="SelectedNode" ></xsl:apply-templates>
<xsl:for-each select="following-sibling::node()" >
<xsl:apply-templates select="." mode="ShadedNode" ></xsl:apply-templates>
</xsl:for-each>
</xsl:otherwise>
</xsl:choose>
</xsl:if>
</xsl:for-each>
</xsl:when>
</xsl:choose>
</xsl:template>
<!-- Template: Non-shaded node -->
<xsl:template match="node" mode="NonShadedNode" >
<a>
<xsl:attribute name="href">
<xsl:value-of select="@url"/>
</xsl:attribute>
<xsl:attribute name="style">
padding-left:<xsl:value-of select="@depth * 10"/>
</xsl:attribute>
<xsl:value-of select="@text"/>
</a>
</xsl:template>
<!-- Template: Shaded node -->
<xsl:template match="node" mode="ShadedNode" >
<a class="SideMenu_Shaded">
<xsl:attribute name="href">
<xsl:value-of select="@url"/>
</xsl:attribute>
<xsl:attribute name="style">
padding-left:<xsl:value-of select="@depth * 10"/>
</xsl:attribute>
<xsl:value-of select="@text"/>
</a>
</xsl:template>
<!-- Template: Selected node -->
<xsl:template match="node" mode="SelectedNode" >
<a class="SideMenu_Selected">
<xsl:attribute name="style">
padding-left:<xsl:value-of select="@depth * 10"/>
</xsl:attribute>
<xsl:value-of select="@text"/>
</a>
</xsl:template>
</xsl:stylesheet>
This does exactly what I need, apart from the THIS DOESN'T WORK CORRECTLY section which for some reason also shows nodes which apart siblings... I'm currently looking at this and hoping it's a slight bug in my code.
Although if you can spot the problem, please let me know! :)
Here's the rendered HTML from the XSL-T:
<div class="SideMenu"><a href="/Home/Tester.aspx" style="
 padding-left:10">Tester </a><a class="SideMenu_Shaded" href="/Home/ChiefConstablesArea.aspx" style="
 padding-left:10">Chief Constables Area</a>
Chief Constables Area
Chief Constables Area
<a class="SideMenu_Shaded" href="/Home/ChiefConstablesArea/ChiefsFocusGroups.aspx" style="
 padding-left:20">Chief's Focus Groups</a>
<a class="SideMenu_Shaded" href="/Home/ChiefConstablesArea/AbouttheChief.aspx" style="
 padding-left:20">About the Chief</a>
<a class="SideMenu_Shaded" href="/Home/ChiefConstablesArea/ChiefsOfficerGroup.aspx" style="
 padding-left:20">Chief's Officer Group</a>
<a class="SideMenu_Selected" style="
 padding-left:20">Chief's Messages</a>
<a class="SideMenu_Shaded" href="/Home/ChiefConstablesArea/ForceAwardsScheme.aspx" style="
 padding-left:20">Force Awards Scheme</a>
<a href="/Home/ActiveForumLitetrial.aspx" style="
 padding-left:10">Active Forum Lite trial</a></div>
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
加载中,请稍侯......
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