CODEWITHSUNDEEP
xmlxpathmsbuild
Tom
Tom

Reputation: 172

Updating XMLfile Using MSBuild.ExtensionPack.Xml.XmlFile UpdateElement

I have an MSBUILD project file and I am trying to checkout some xml files and update a Version element and can't seem to get this to work for the life of me. This seems like it should be a simple solution but I cannot get it to work. I have a simple xml file:

<?xml version="1.0" standalone="yes"?>
<DataSet>
  <Profile>
    <Product>ProductA</Product>
    <Version>1.2.3.4</Version>
  </Profile>
  ~
</DataSet>

I can get the Version by using xmlPeek:

<XmlPeek XmlInputPath="c:\myProfile.xml"
  Query="DataSet/Profile/Version[../Product = &quot;ProductA&quot;]/text()">
  <Output TaskParameter="Result" ItemName="ProductVersion" />
</XmlPeek>

I had no luck using XmlPoke updating the Version so I tried XmlFile's UpdateElement from XmlFile's class page:

http://www.msbuildextensionpack.com/help/4.0.5.0/html/4009fe8c-73c1-154f-ee8c-e9fda7f5fd96.htm

  <MSBuild.ExtensionPack.Xml.XmlFile
    TaskAction="UpdateElement"
    File="c:\machine.config"
    XPath="/configuration/configSections/section[@name='system.data']"
    InnerText="NewValue"/>

I tried the follwing plus many other XPath versions to which none has worked.

  <MSBuild.ExtensionPack.Xml.XmlFile
    TaskAction="UpdateElement"
    File="c:\myProfile.xml"
    XPath="/DataSet/Profile/Version[@Product='ProductA']"
    InnerText="5.6.7.8"
  />

What am I missing?
Or does anyone know the correct XPath for xmlpoke

Thanks

Upvotes: 2

Views: 713

Answers (1)

har07
har07

Reputation: 89285

In XPath, @ is used to reference attribute like @attribute_name. So part of your attempted XPath Version[@Product='ProductA'], will look for Version element that have Product attribute value equals 'ProductA', something like the following (which doesn't exist in your XML) :

<Version Product="ProductA"/>

The correct XPath to get Version element by Product name would be as follow :

/DataSet/Profile[Product='ProductA']/Version

This particular part Profile[Product='ProductA'], filters Profile element that have child element Product equals 'ProductA'.

Upvotes: 1

Related Questions