Reading a *.CSPROJ file in C#

I am attempting to write some code to read in a *.CSPROJ file using C#

The code I have is as follows

   XmlDocument xmldoc = new XmlDocument();
   xmldoc.Load(fullPathName);

   XmlNamespaceManager mgr = new XmlNamespaceManager(xmldoc.NameTable);
   //mgr.AddNamespace("x", "http://schemas.microsoft.com/developer/msbuild/2003");

   foreach (XmlNode item in xmldoc.SelectNodes("//EmbeddedResource") )
   {
      string test = item.InnerText.ToString();
   }

using the debugger I can see that 'fullPathName" has the correct value and the xmldoc once loaded has the correct contents.

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The xmldoc does not have any "Nodes" though, as if the contents are not recognised as XML.

Using a XML editor the *.csproj file validates an XML document.

Where am I going wrong?

---

Why not use the MSBuild API?

Project project = new Project();
project.Load(fullPathName);
var embeddedResources =
    from grp in project.ItemGroups.Cast<BuildItemGroup>()
    from item in grp.Cast<BuildItem>()
    where item.Name == "EmbeddedResource"
    select item;

foreach(BuildItem item in embeddedResources)
{
    Console.WriteLine(item.Include); // prints the name of the resource file
}

You need to reference the Microsoft.Build.Engine assembly

---

You were getting close with your XmlNamespaceManager addition, but weren't using it in the SelectNodes method:

XmlNamespaceManager mgr = new XmlNamespaceManager(xmldoc.NameTable);
mgr.AddNamespace("x", "http://schemas.microsoft.com/developer/msbuild/2003");

foreach (XmlNode item in xmldoc.SelectNodes("//x:ProjectGuid", mgr))
{
    string test = item.InnerText.ToString();
}

(I switched to searching for a different element as my project didn't have any embedded resources)

---

For completeness here the XDocument version, this simplifies namespace management:

        XDocument xmldoc = XDocument.Load(fullPathName);
        XNamespace msbuild = "http://schemas.microsoft.com/developer/msbuild/2003";

        foreach (var resource in xmldoc.Descendants(msbuild + "EmbeddedResource"))
        {
            string includePath = resource.Attribute("Include").Value;
        }