OK, I figured out how to change the data from a textbox entry.
I changed your code:
dname.SetAttributeValue("VALUE", "foo"); to:
dname.SetAttributeValue("VALUE", textBox4.Text);

I imageine that I'll need an XElement statement for each attribute that I 
want to change, e.g., XElement ipadd, XElement submask, XElement gateway, etc.

Ron 
"Martin Honnen" wrote:

> RLEE71 wrote:
> > I'm using VS C# 2008 Express. I want to read data from an XML file and 
> > display into a text box. I then want to be able to edit the data in the text 
> > box and save back to the XML file. I've seen various examples of how to do 
> > this, but I think that my particular XML file is more complicated. Any help 
> > would be greatly appreciated. I'm concerned with the data in the IP_ADRESS, 
> > SUBNET_MASK, GATEWAY_IP_ADRESS, and DNS_NAME tags under MOD_NETWORK_SETTINGS. 
> > Also want to edit the ADD_USER PASSWORD data.
> 
> With VS 2008 you can and should use LINQ to XML to manipulate your XML:
> http://msdn.microsoft.com/en-us/library/bb387098.aspx
> 
> Here is sample code that loads your XML sample, finds the 
> MOD_NETWORK_SETTINGS element and changes the VALUE attribute of the 
> DNS_NAME child element:
> 
>              XDocument doc = XDocument.Load(@"doc.xml");
>              XElement mns = 
> doc.Descendants("MOD_NETWORK_SETTINGS").FirstOrDefault();
>              if (mns != null)
>              {
>                  XElement dname = mns.Element("DNS_NAME");
>                  dname.SetAttributeValue("VALUE", "foo");
>                  // make more changes here
>                  // then save
>                  doc.Save("doc.xml");
>              }
> 
> -- 
> 
> 	Martin Honnen --- MVP XML
> 	http://JavaScript.FAQTs.com/
>