XML File Load Issue

Rollo1002 · December 20th, 2009, 01:34 PM

I am trying to get an XML document to load so that I can pull information out of it when an aspx page loads and populate labels through out a page.

In the <pagename>.cs.aspx code behind file within the Page_Load function I have the following.

At this point the code initiates; however, it fails at the doc.LoadXML line. I have tried doc.Load and other path attempts with no avail. It jumps to the catch function and rightfully displays the an error has occured.

Could there be a problem in the XML file itself that is causing the error?

Code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Xml;
using System.Xml.Schema;
using System.IO;


public partial class obedience : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
 XmlNode node = null;
        try
        {
            XmlDocument doc = new XmlDocument();

           doc.LoadXml("http://www.site.com/XML/Classes.xml");

            node = doc.SelectSingleNode("//class[./name/text()='classname']");

            bodescription.Text = node.ChildNodes[1].InnerText;
    
        }
        catch (Exception ex)
        {
            bodescription.Text = "An Error Occured";
        }
}
}

samjudson · December 20th, 2009, 01:51 PM

Try XmlDocument.Load, rather than XmlDocument.LoadXml.

Rollo1002 · December 20th, 2009, 04:43 PM

That does not work either.

Code:

public partial class obedience : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        XmlNode node = null;
      try
        {
            XmlDocument doc = new XmlDocument();

            doc.Load("http://www.site.com/XML/Classes.xml");

            node = doc.SelectSingleNode("//class[./name/text()='class']");

            bodescription.Text = node.ChildNodes[1].InnerText;
    
        }
        catch (Exception ex)
        {
            bodescription.Text = "An Error Occured";
        }

        

    }

    

}

samjudson · December 20th, 2009, 06:29 PM

Well I get a 404 for the URL you originally posted (which you've now changed). This should work but without knowing more about any errors you are getting its hard to say what the problem is.

mhkay · December 20th, 2009, 07:39 PM

When I try to access the URI http://www.positivedogtraining.com/XML/PDTSClasses.xml, I get an HTTP error 503 accessing the DTD http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd. This is in principle a transient error indicating that the server is busy, and trying again might succeed. However, it's not a good idea to make your parsing dependent on the W3C server making this DTD available.

The file in question appears to be an XHTML file, and to have nothing in it that would match your XPath expression "//class[./name/text()='Beginning Obedience']".

Rollo1002 · December 20th, 2009, 08:04 PM

The site that I am developing is not live so that's is why the links change and you're getting a 404 error. I am conducting a complete redesign and overhaul.

Here is the error from the output:
'WebDev.WebServer.EXE' (Managed): Loaded 'C:\Users\Laptop\AppData\Local\Temp\Temporary ASP.NET Files\pdtsnew\a294da9d\eea91987\App_Web_nglyac_s.d ll', Symbols loaded.

A first chance exception of type 'System.Xml.XmlException' occurred in System.Xml.dll

Rollo1002 · December 21st, 2009, 01:07 AM

So I have uploaded this into my test server and still am unable to get it to load. Here is the final code with URL on the test server.

Code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Xml;
using System.Xml.Schema;
using System.IO;





public partial class obedience : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        XmlNode node = null;
      try
        {
            XmlDocument doc = new XmlDocument();


            doc.Load("http://positivedog.urimprovedsite.com/test.xml");

            node = doc.SelectSingleNode("//class[./name/text()='Basic Obedience']");

            bodescription.Text = node.ChildNodes[1].InnerText;
    
        }
        catch (Exception ex)
        {
            bodescription.Text = "An Error Occured";
        }

        

    }

    

}

Rollo1002 · December 21st, 2009, 01:24 AM

Interestingly enough I was able to get it to work; however, I had to remove the try { } catch { } statements from the Page_Load function. Not sure why this is the case if someone knows pass it along.

Thanks for the responses.