XML databinding to TreeView (or Tab control), bind attribute based on different attribute

Question

Hello,
I have some xml:

<Test>
  <thing location="home" status="good"/>
  <thing location="work" status="bad"/>
  <thing location="mountains" status="good"/>
</Test>

The leaves on the TreeView are the values of the status attribute; the nodes will be the value of the location attribute.

├──bad
│.....└──work
└──good
.......├──home
.......└──mountains

Currently, I populate the TreeView (or Tab control) manually, iterating through the xml, adding the nodes to the appropriate leaf.
Can this be done via databinding? I'm guessing a Converter will be involved...
Thanks for any advice.

Answer 1

Assuming you are going to bind to an XmlDataSource you could use a TransformFile with the following contents:

<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="msxsl">
  <xsl:output method="xml" indent="yes"/>
  <xsl:template match="/Test">
    <Test>
      <good>
        <xsl:for-each select="thing[@status='good']">
           <xsl:element name="{@location}"/>
        </xsl:for-each>
      </good>
      <bad>
        <xsl:for-each select="thing[@status='bad']">
          <xsl:element name="{@location}"/>
        </xsl:for-each>
      </bad>
    </Test>
  </xsl:template>
</xsl:stylesheet>

Add an XPath="/Test/*" property to the XmlDataSource to remove the "Test" root element.

Answer 2

I was looking for the same type of information and found this question on Stack Overflow very helpful. You simply need to specify the XmlDataProvider and some HierarchicalDataTemplate elements. Then some simple data bindings with XPath attributes pulls it all together. Check out the link above for more details.