I needed to simulate some user interaction with our webservices in an automated manner. This post is specific to one small part of this requirement – here we’re going to simply take some XML and change a value within the data and return this altered data.
The code is very simple but demonstrates how to deal with namespaces as well as using XmlDocument and XPath.
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| // takes a string representing the XML and allows us to find a node and change the inner text, also shows | |
| // how to set-up namespaces (note: For simplicity there's No error handling in this sample) | |
| let changeValue xmlData = | |
| let nameTable = NameTable() | |
| let namespaceManager = XmlNamespaceManager(nameTable) | |
| namespaceManager.AddNamespace("soap", "http://www.w3.org/2003/05/soap-envelope") | |
| let xml = XmlDocument() | |
| xml.LoadXml xmlData | |
| let current = xml.SelectSingleNode("//soap:Envelope/soap:Body/someElement", namespaceManager) | |
| current.InnerText <- "NEW TEXT" | |
| xml.OuterXml |
by Note: I’m using XmlDocument here and XPath for simplicity but obviously this is not the most performant on large documents.