c# - Replace XProcessingInstruction from XDocument

Question

I have a case where a user uploads an XML file. I am using XDocument to handle it. However, I want to replace the stylesheet used with one on the server. Is there a way to use XDocument to modify the

I can get the expression with linq, as an XmlNode, as shown below:

var node = from proc in doc.Nodes()
           where proc.NodeType == XmlNodeType.ProcessingInstruction
           select proc;

But I cannot figure out how to replace the node.

Update: I feel like an idiot...

var node = doc.Nodes().Where(type => type.NodeType == System.Xml.XmlNodeType.ProcessingInstruction).Single() as XProcessingInstruction;
node.Data = "href=\"" + Utilities.Utility.XSLLocation + "\" type=\"text/xsl\"";