XPathQuery.EvaluateString Method

// In this example we will use Pre-compiled XPath query to
// Select nodes.
// --------------------------------------------------------
var f as FolderItem = SpecialFolder.Resources.Child("xgconsole.xml")

if not f.Exists then
    MessageBox("Could not find file xgconsole.xml")
    return
end if

using EinhugurXml

// Most parts of the plugin do not Throw exceptions, but Loading XML
// document does as well as all XPath query functionality.
try
    var document as Document = Document.FromFile(f)
   
    var queryNameValid as XPathQuery = new XPathQuery("string-length(substring-before(@Filename, '_')) > 0 and @OutputFileMasks")
    var queryName as XPathQuery = new XPathQuery("concat(substring-before(@Filename, '_'), ' produces ', @OutputFileMasks)")
   
    ListBox1.RemoveAllRows()
   
    // Here we will be executing the pr-compiled queries many times
    for each tool as Node in document.FirstElementByPath("Profile/Tools").Children
      
       var s as String = queryName.EvaluateString(tool)
      
       if queryNameValid.EvaluateBoolean(tool) then
          ListBox1.AddRow(s)
       end if
    next
   
   
catch ex as EinhugurXmlParserException
MessageBox(ex.Message + " - Offset:" + ex.Offset.ToString())
catch ex as EinhugurXPathException
MessageBox(ex.Message + " - Offset:" + ex.Offset.ToString())
end try