Iterating through xmltextreader - asp.net

Question

I have a xml in the following format.
<?xml version="1.0" encoding="UTF-8" standalone= "yes"?>
<rss>
<report name="rpt1">
<title>AAA</title>
<image></image>
<weblink></weblink>
<pdflink></pdflink>
<pdfsize></pdfsize>
</report>
<report name="rpt2">
<title>BBB</title>
<image>CCC</image>
<weblink>DDD</weblink>
<pdflink>EEE</pdflink>
<pdfsize>FFF</pdfsize>
</report>
</rss>
Now i want to iterate this xml and get the report node and from there get childnodes like title/pdflink/size etc which would be thru. looping using for loop. I want to use xmltextreader to accompalish this. I tried using while but i get only 1 loop after iterating. I dont know why. If thru for loop how do i iterate like,
for(loop when reader.element("reports)){} and then get the rest of the nodes and put them in an array or list or so. Once i get them stored in list i would want to dipaly them ina feed. which is a best way to do this? pls help.

Answer 1

In my case I was worried about the performance of loading a large document. What I have done is define a constructor on my objects to receive a XmlReader and hydrate - passing the reader back after it reaches a complete node.
This allows me to yield a populated object back as IEnumerable for each object as it's being read. Then I launch a new Task/Thread to handle processing that individual item and go back to processing the file.
private IEnumerable<Report> readReports(Stream reader)
{
var settings = new XmlReaderSettings();
settings.IgnoreWhitespace = true;
var xmlReader = XmlReader.Create(reader, settings);
xmlReader.MoveToContent();
xmlReader.Read();
while (!xmlReader.EOF)
{
if (xmlReader.Name.ToUpper() == "report")
yield return new Report(xmlReader);
xmlReader.Read();
}
}
public Report(XmlReader reader) : this()
{
reader.MoveToContent();
if (reader.IsEmptyElement)
{
reader.Read();
return;
}
reader.Read();
while (!reader.EOF)
{
if (reader.IsStartElement())
{
switch (reader.Name.ToLower())
{
case "order_id":
this.OrderId = reader.ReadElementContentAsString();
break;
// abreviated the rest of the fields
default:
reader.Skip();
break;
}
}
else if (reader.Name.ToLower() == "report") //this watches for the end element of the container and returns after populating all properties
return;
}
}
I would definitly appreciate any feedback from the rest of the community, if there is a better approach or if there are any errors here please let me know.