XML NODE TRAVERSE IN ASP.NET

public void TravelNode(XmlNode n)

{

TravelNode(n, 0);

}

public void TravelNode(XmlNode n, int i)

{

foreach (XmlAttribute attr in n.Attributes)

{

string v = attr.Name;

string na = attr.Value;

if (v == "Code")

{

status = "Not Delievered";

break;

}

else

{

status = "Delievered";

}

}

foreach (XmlNode nod in n.ChildNodes)

{

TravelNode(nod, i + 1);

}

}

protected void Button1_Click(object sender, EventArgs e)

{

String      dr="<?xml%20version=\"1.0\"%20encoding=\"ISO-8859-1\"?><!DOCTYPE%20REQUESTCREDIT%20SYSTEM%20\"http://107.10.10.01/dtd/requestcredit.dtd\"%20>";

XmlDocument xmlDoc = new XmlDocument();

xmlDoc.LoadXml(dr);

TravelNode(xmlDoc.DocumentElement);

}