XmlTextReader error

[Tony]

XmlTextReader XmlRdr = new System.Xml.XmlTextReader(XmlFile);

//while moving through the xml document.
while(XmlRdr.Read())
{
//check the node type and look for the element type
if (XmlRdr.NodeType==XmlNodeType.Element)
{XMLOutput.AppendText(XmlRdr.ReadSubtree() + "\r\n");}
}

Granted I don't really know what I'm doing quite yet , but getting
the error message below doesn't make much sense to me because I am
making sure the reader is on an element node.

System.InvalidOperationException was unhandled
Message="ReadSubtree() can be called only if the reader is on an
element node."


Tony!

 

[Marc Gravell]

Since that won't compile (string conversion) and doesn't have sample
xml, it is hard to give an absolute answer - however this might help...
perhaps... although note that using a subtree just to read the outer
xml is overkill ;-p

If you post with more info, you may get a better answer... hope this
helps, though:

Marc

using System;
using System.Xml;
using System.IO;
using System.Diagnostics;

class Program {

static void Main() {
const string xml = @"
<xml att=""test""><data a=""b""/><a/><b/><c><d><e/></d><f/></c></xml>";
using(StringReader sr = new StringReader(xml))
using(XmlReader xr = XmlReader.Create(sr)) {
xr.MoveToContent();
while (xr.Read()) {
Debug.WriteLine(xr.NodeType, "in:" + xr.Name);
if (xr.NodeType == XmlNodeType.Element) {
using (XmlReader subtree = xr.ReadSubtree()) {
subtree.MoveToContent();
Debug.WriteLine(subtree.ReadOuterXml());
}
}
Debug.WriteLine(xr.NodeType, "out:" + xr.Name);
}
}

}
}