Question

I am trying to parse the below XML in to the Entity through Linq, but i am not able to get the corresponding element.

<profile:learner type="" xmlns:profile="http://www.SumURL.com/XML/profile/2.0#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:vCard="http://www.w3.org/2001/vcard-rdf/3.0#">
  <profile:personal type="">
<profile:id>123</profile:id>
<vCard:Name rdf:parseType="Resource" type="">
  <vCard:FirstName>ABC</vCard:FirstName>
  <vCard:LastName>XYZ</vCard:LastName>
  <vCard:UserName>XYZ ABC</vCard:UserName>
  <vCard:FullName>ABC XYZ</vCard:FullName>
</vCard:Name>
<vCard:Address rdf:parseType="Resource" type="">
  <vCard:Street />
  <vCard:Extadd />
  <vCard:Locality />
  <vCard:Region />
  <vCard:PinCode />
</vCard:Address>
<vCard:TelephoneNumber />
<vCard:EmailId />
<vCard:TimeZone>(GMT-05:00) Eastern Time (US &amp; Canada)</vCard:TimeZone>
<vCard:Title />
<vCard:Organization rdf:parseType="Resource" type="">
  <vCard:OrgName>Q</vCard:OrgName>
</vCard:Organization>
<vCard:Role />
</profile:personal>
</profile:learner>

XNamespace env = xDoc.Root.Name.NamespaceName;
var a = (from level in xDoc.Descendants(env + "personal")
         select new 
         {
             PeopleID = (!string.IsNullOrEmpty(level.Elements(env + "id").First().Value)) ? level.Elements(env + "id").First().Value : String.Empty,
             FirstName = (!string.IsNullOrEmpty(level.Elements(env + "Name").Elements(env + "FirstName").First().Value)) ? level.Elements(env + "Name").Elements(rdf + "FirstName").First().Value : String.Empty,
         }).ToList();

I am able to get the PersonID but not the FirstName, Lastname, Role etc.

Please tell me where i am doing wrong in the above Linq Query.

Please help me out.

Answer 1

As kjn pointed out, Name and FirstName elements are not in the profile namesapce, they are in vCard. And you have to reflect that in your code. You could also simplify your code a lot:

XNamespace profileNs = "http://www.SumURL.com/XML/profile/2.0#";
XNamespace vCardNs = "http://www.w3.org/2001/vcard-rdf/3.0#";
var a = (from level in xDoc.Descendants(profileNs + "personal")
         select new
         {
             PeopleID = (string)level.Element(profileNs + "id"),
             FirstName = (string)level.Elements(vCardNs + "Name")
                                      .Elements(vCardNs + "FirstName")
                                      .FirstOrDefault()
         }).ToList();

Note that this will sometimes set the properties to null, instead of string.Empty, but I think that makes more sense if the data is not present.