SOAP XML XPath Navigation Traversal Examples

SOAP responses often contain nested XML structures that require navigation to extract meaningful values. The IPWorks XML and SOAP components provide XPath-based functionality to traverse these structures efficiently.

XML Traversal Using XPath

The following example demonstrates how to navigate an XML document using different XPath expressions and related properties:

Loading Input Data

Xml xml = new Xml();
xml.InputData =
  "<root><parent1>" +
  "<child1 attr1=\"1\">value 1</child1>" +
  "<child2><grandchild1>value 2</grandchild1></child2>" +
  "</parent1></root>";

Basic Navigation

xml.XPath = "/root/parent1/child1";
Console.WriteLine(xml.XElement);

xml.XPath = "../child2";
Console.WriteLine(xml.XElement);

Attributes, Parent, Children, Subtree

xml.XPath = "/root/parent1/child1";
Console.WriteLine(xml.XAttributes[0].Value);
Console.WriteLine(xml.XParent);

xml.XPath = "/root/parent1";
foreach (var c in xml.XChildren)
  Console.WriteLine(c.Name + ": " + c.XText);

xml.XPath = "/root/parent1/child2";
Console.WriteLine(xml.XSubTree);

Indexing and Attribute Filtering

xml.XPath = "/root/parent1/[1]";
Console.WriteLine(xml.XElement);

xml.XPath = "/root/parent1/[last()]";
Console.WriteLine(xml.XElement);

xml.Reset();
xml.InputData =
  "<root><parent>" +
  "<child attr1=\"1\">child1</child>" +
  "<child attr2=\"2\">child2</child>" +
  "</parent></root>";

xml.XPath = "/root/parent/child[@attr1='1']";
Console.WriteLine(xml.XText);

Note: In the SOAP component, XSubTree is a configuration setting instead of a property.