Increase version of application.config automatically using powershell after every deployment

Question

I am new to powershell and I wanted to change version in an xml file after every deployment and. I referred to Unable to update a value in msbuild proj file using powershell

Answer 1

AppVersion is the value of an attribute of an <add> node, not the name of a node. Also, you want to extract the value of the node's value attribute, not the node's innerText.

       ,- node name
      /
     /   ,- attribute name
    /   /
   /   /       ,- attribute value
  /   /       /
<add key="AppVersion" value="v0.1.7.21.31.144402">
  something
</add>   \
          `- inner text

Attributes are selected in XPath expressions like this:

//node[@attribute='value']

Change these two lines:

$node = $Test1QABuildVersion.SelectSingleNode("/configuration/site/key/AppVersion")
$PropertyVersion= $node.InnerText

into this:

$node = $Test1QABuildVersion.SelectSingleNode("/configuration/site/add[@key='AppVersion']")
$PropertyVersion= $node.value

and update the version number like this:

$node.value = $newVersion