Linq to Xml get elementat

[morganlomas]

Sorry for the long XML sample below. The XML sample below has two records and each record has three similar Nodes (<datafield tag="500" ind1=" " ind2=" ">) What I want to accomplish is get the value of the second Node <datafield tag = “5000”>. The fallowing code I gets the value for all three nodes but I want something like get elementat(1). Appreciate your help.
I tried this but it didn’t worked MsgBox(xEle.Elements.ElementAt(1).Value)

Dim xd As XDocument = XDocument.Load("C:\Users\stopete\Desktop\Marc_convertxml.xml")
If xd IsNot Nothing Then
Dim datafields = From datafield In xd.Descendants("datafield")
Where (datafield.Attribute("tag").Value = "500")
Select datafield

For Each xEle In datafields

MsgBox(xEle)

Next

End If


XML:
<?xml version="1.0"?>
<collection>
<record>
<leader>03799cam 2200493Ia 4500</leader>
<controlfield tag="001">648168072
<subfield code="a">Battle, Stephen L.</subfield>
</controlfield>
<controlfield tag="003">SIRSI</controlfield>
<controlfield tag="005">20110207150903.0</controlfield>
<controlfield tag="008">100716s2010 caub bm f000 0 eng d</controlfield>
<controlfield tag="007">cr b|||||a||||</controlfield>
<datafield tag="035" ind1=" " ind2=" ">
<subfield code="a">AD#</subfield>
<subfield code="c">AD#</subfield>
<subfield code="d">AD#</subfield>
</datafield>
<datafield tag="037" ind1=" " ind2=" ">
<subfield code="a">hey</subfield>
</datafield>
<datafield tag="040" ind1=" " ind2=" ">
<subfield code="a">ADA524509</subfield>
<subfield code="b">DTI</subfield>
</datafield>
<datafield tag="043" ind1=" " ind2=" ">
<subfield code="a">n-us---</subfield>
</datafield>
<datafield tag="049" ind1=" " ind2=" ">
<subfield code="a">AD#A</subfield>
</datafield>
<datafield tag="100" ind1="1" ind2=" ">
<subfield code="a">Battle, Stephen L.</subfield>
</datafield>
<datafield tag="245" ind1="1" ind2="0">
<subfield code="a">Lessons in legitimacy</subfield>
<subfield code="h">[electronic resource] :</subfield>
<subfield code="b">the LTTE end-game of 2007--2009 /</subfield>
<subfield code="c">Stephen L. Battle.</subfield>
</datafield>
<datafield tag="260" ind1=" " ind2=" ">
<subfield code="a">Monterey, California :</subfield>
<subfield code="b">Naval Postgraduate School,</subfield>
<subfield code="c">2010.</subfield>
</datafield>
<datafield tag="300" ind1=" " ind2=" ">
<subfield code="a">xiv, 57 p. :</subfield>
<subfield code="b">ill. (1 col map) ;</subfield>
<subfield code="c">28 cm.</subfield>
</datafield>
<datafield tag="500">
<subfield code="a">Thesis Advisor(s): Borer, Douglas A. ; Second Reader: Chatterjee, Anshu.</subfield>
</datafield>
<datafield tag="500">
<subfield code="a">"June 2010."</subfield>
</datafield>
<datafield tag="500">
<subfield code="a">Author(s) subject terms: LTTE, Counter Insurgency, COIN, Sri Lanka, Tamil Eelam, Eelam War IV, SLAF, South Asia.</subfield>
</datafield>
</record>
<record>
<leader>02919cam 2200493Ia 4500</leader>
<controlfield tag="001">648167554</controlfield>
<controlfield tag="003">SIRSI</controlfield>
<controlfield tag="005">20110207150310.0</controlfield>
<controlfield tag="008">100716s2010 caua bm f000 0 eng d</controlfield>
<controlfield tag="007">cr b|||||a||||</controlfield>
<datafield tag="035" ind1=" " ind2=" ">
<subfield code="a">AD#</subfield>
<subfield code="c">AD#</subfield>
<subfield code="d">AD#</subfield>
</datafield>
<datafield tag="037" ind1=" " ind2=" ">
<subfield code="a">hey</subfield>
</datafield>
<datafield tag="040" ind1=" " ind2=" ">
<subfield code="a">ADA524541</subfield>
<subfield code="b">DTI</subfield>
</datafield>
<datafield tag="043" ind1=" " ind2=" ">
<subfield code="a">n-us---</subfield>
</datafield>
<datafield tag="049" ind1=" " ind2=" ">
<subfield code="a">AD#A</subfield>
</datafield>
<datafield tag="100" ind1="1" ind2=" ">
<subfield code="a">Battaglia, Neal F.</subfield>
</datafield>
<datafield tag="245" ind1="1" ind2="0">
<subfield code="a">Utility of satellite LIDAR waveform data in shallow water</subfield>
<subfield code="h">[electronic resource] /</subfield>
<subfield code="c">Neal F. Battaglia.</subfield>
</datafield>
<datafield tag="260" ind1=" " ind2=" ">
<subfield code="a">Monterey, California :</subfield>
<subfield code="b">Naval Postgraduate School,</subfield>
<subfield code="c">2010.</subfield>
</datafield>
<datafield tag="300" ind1=" " ind2=" ">
<subfield code="a">xvi, 67 p. :</subfield>
<subfield code="b">ill. (some col.) ;</subfield>
<subfield code="c">28 cm.</subfield>
</datafield>
<datafield tag="500">
<subfield code="a">Thesis Advisor(s): Olsen, Richard C. ; Second Reader: Trask, David M.</subfield>
</datafield>
<datafield tag="500">
<subfield code="a">"June 2010."</subfield>
</datafield>
<datafield tag="500”>
<subfield code="a">Author(s) subject terms: LIDAR Waveforms, Underwater LIDAR signature, Spaceborne LIDAR.</subfield>
</datafield>
</record>
</collection>

 

[JohnH]

datafields(1).Value

 

[morganlomas]

Thanks for the respond but it doesnt work. Right now I get all three datafield="500" values for both records but I only want to ouput the
third datafield="500" values which is the fallowing:

my desire output:

Author(s) subject terms: LTTE, Counter Insurgency, COIN, Sri Lanka, Tamil Eelam, Eelam War IV, SLAF, South Asia


Author(s) subject terms: LIDAR Waveforms, Underwater LIDAR signature, Spaceborne LIDAR



with the code i have i get the fallowing:

Thesis Advisor(s): Borer, Douglas A. ; Second Reader: Chatterjee, Anshu
"June 2010."
Author(s) subject terms: LTTE, Counter Insurgency, COIN, Sri Lanka, Tamil Eelam, Eelam War IV, SLAF, South Asia


Thesis Advisor(s): Olsen, Richard C. ; Second Reader: Trask, David M
"June 2010."
Author(s) subject terms: LIDAR Waveforms, Underwater LIDAR signature, Spaceborne LIDAR


Thanks

 

[JohnH]

Your desired fields, which is third and not second as you said in first post, are datafields(2) and datafields(5) in current result set.

 

[morganlomas]

I apologize if I am not explaining myself, the code is correct; however, the code outputs the value for the first record; if you notice my XML sample it has two records or let said I got many records, do you know what I need to add so it will traverse all the records?

 

[JohnH]

however, the code outputs the value for the first record

No, it outputs all matching datafield elements from all records, which is your post is two records, it it were more it would output all those too. The third matching datafield you say you want is every third index in the result set (2,5,8,11, etc).