Reading multiple child nodes of xml file

Question

I have created an Xml file with example contents as follows:

Answer 1

Since the XmlDocument.SelectNodes method actually accepts an XPath expression, you're free to go like this:

XmlNodeList xnl = doc.SelectNodes("/Periods/PeriodGroup[@name='" + PG + "']/Period");
foreach (XmlNode node in xnl) {
    // Every node here is a  child of the relevant .
}

You can learn more on XPath at w3schools.