How to get the attribute value of a node containing a certain string?

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How do I get the attribute values of a node that contains a certain string?
For example..
Say, I have an array of strings or IEnumerable of strings containing strings like
x1
a2
z5
etc
...

and the file contains nodes like
<x-aln freq="fq1">abldfls lfds fd \hbox{x1}</x-aln>
<x-aln freq="fq2">abldfls lfds fd \hbox{x2}</x-aln>
<x-aln freq="fq3-5">abldfls lfds fd \hbox{z5} dafdsf \hbox{z6} dsfdsf \hbox{z7}</x-aln>
How do I search for all the string in the array to check whether they are inside any of the

\hbox{...}

, if yes, then get the attribute value freq of its parent node <x-aln> and store them in a variable?

What I have tried:

I can't figure out how can I do this...
Can anyone help??
Sample xml file

XML

<?xml version="1.0" encoding="UTF-8"?>
<body>
	<section id="sec1">
		<label>1.</label>
		<title>INTRODUCTION</title>
		<p>Despite the large number of scientific papers devoted to the heart <sup><xref ref-type="bibr" rid="c1">1</xref>–<xref ref-type="bibr" rid="c2">2</xref></sup>, this time to think both home and foreign authors there are many different <xref ref-type="disp-formula" rid="deqn2">2</xref> controversial issues. They are associated with morphological structural features of valvular heart disease and its individual structural components: valves, tendon strings mastoid muscle and fibrous ring <sup><xref ref-type="bibr" rid="c1">1</xref>–<xref ref-type="bibr" rid="c2">2</xref></sup>.</p>
		<section id="sec2">
			<title>INTRO</title>
			<p>All structures are large valvular morphofunctional load.
				<x-aln freq="fq1">abldfls lfds fd \hbox{x1}</x-aln></p>
			<p>According to the classification of tendon <xref ref-type="eqn" rid="fq1a">1</xref> strings of the heart they are classified as boundary, i.e, those that are attached to the <xref ref-type="disp-formula" rid="deqn10">(17)</xref> edges of the leaves, leaf, spot fixing being lower surface of leaf valve (facing the cavity of the ventricle) and abnormally arranged strings.</p>
			<p>Thus detailed knowledge of the structural features of normal tendon strings.
				<x-aln freq="fq2">abldfls lfds fd \hbox{x2}</x-aln></p>
		</section>
	</section>
	<section id="sec3">
		<label>2.</label>
		<title>THE MORPHOLOGY OF CHONDRAE TENDIANEAE</title>
		<section id="sec2a">
			<title>THE MORPHOLOGY</title>
			<p>According to the macroscopic study of tendon strings newborns and infants
				<x-aln freq="fq3-5">abldfls lfds fd \hbox{z5} dafdsf \hbox{z6} dsfdsf \hbox{z7}</x-aln></p>
			<section id="sec5a1">
				<title>THE OML</title>
				<p>Total number of tendon strings are attached to the cusps of <xref ref-type="eqn" rid="fq4">4</xref> atrioventricular valves of the heart in both age groups ranged from 30 to 80.</p>
			</section>
		</section>
	</section>
</body>

Posted 25-Dec-17 2:05am

Member 12692000

Updated 28-Dec-17 1:38am

v2

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Comments

Nakhia_ind 26-Dec-17 3:54am

which enviornment like sql or c#

Member 12692000 26-Dec-17 10:47am

C#

Nakhia_ind 26-Dec-17 12:14pm

sir before some time a answer is submit with the bellow link

https://www.codeproject.com/Answers/1222585/How-to-get-the-processing-instruction-value-using#answer1

If that is not usefull plz convey me

Member 12692000 26-Dec-17 22:04pm

sorry, but the link you provided did not help in my problem at all.

Nakhia_ind 27-Dec-17 10:51am

so plz convey me the total xml file

Member 12692000 27-Dec-17 11:08am

I have given the complete xml file for you to work with..check the updated question.

[no name] 27-Dec-17 16:14pm

Share the C# code what you have tried so error/issue can be checked. No one can write the code for this here.

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Nakhia_ind · Answer 1 · 2017-12-28T01:38:00

sir first create a xml file named as test1.xml and stored in the debug folder in win application given bellow that manupulating your first xml code

<xml>
    <foo>
        <x-aln freq="fq1">abldfls lfds fd \hbox{x1}</x-aln>
<x-aln freq="fq2">abldfls lfds fd \hbox{x2}</x-aln>
<x-aln freq="fq3-5">abldfls lfds fd \hbox{z5} dafdsf \hbox{z6} dsfdsf \hbox{z7}</x-aln>
    </foo>
    <foo id="123">Text 1<moo />Text 2
    </foo>
</xml>

then the code behind I define bellow

private void button5_Click(object sender, EventArgs e)
      {

          string fpath = Application.StartupPath + "\\" + "test1.xml";
          XDocument xele = XDocument.Load(fpath);

          var node = xele.XPathSelectElement("/xml/foo/x-aln[@freq='fq1']");
          var strvalue = node.Value;
          int ind = strvalue.IndexOf('\\');
          string str = "";
          if (strvalue.Substring(ind + 1, 5) == "hbox{")
          {
              int lind = strvalue.LastIndexOf('}');
              str = strvalue.Substring(ind + 6, (lind-(ind + 6)));
              MessageBox.Show(str);
          }

This give a message box but you can take with a variable