How to read a xml document with specific tags and convert to dataset

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C#4.0

C#3.5

I have requirement whereby I have to read specific tags from XML and convert it to dataset. I have written a code but its ignoring some tags which i want to consider.

(some tags have attribute while some dont)

Eq: I need <row> tag with <c99> and <c100> tags from below xml rest all tags can be ignored.(Need dataset)

Note:my code is ignoring <c99> and <c100> whis is my requirement

<row id="0110398750012">
<c1>10398235475</c1>
<c2>1050</c2>
<c99 m="2">LEGACY</c99>
<c99 m="3">T24.IBAN</c99>
<c99 m="4">PREV.IBAN</c99>
<c100 />
<c100 m="2">100119406</c100>
<c100 m="3">asdsafsaf</c100>
<c100 m="4">afafsafaff</c100>
<c108>NO</c108>
<c141>NO</c141>
<c167>20160205</c167>
<c203>2</c203>
<c204>afffghhjjjgfj</c204>
<c205>sdfdfsdfdsfds</c205>
<c206>ssdfdfdf.READ.sdff</c206>
<c207>sdfdfdfdsf</c207>
<c208>1</c208>
</row>

What I have tried:

XDocument xdoc = XDocument.Load(sourcexml); // or XDocument.Parse(string)

                xdoc.Root.Descendants().Where(e => e.Name != "c1" && e.Name != "c2" && e.Name != "c27" && e.Name != "c122"
                    && e.Name != "c8" && e.Name != "c78" && e.Name != "c90" && e.Name != "c7" && e.Name != "c100"
                    && e.Name != "c202" && e.Name != "c13").Remove();


                reader = new XmlNodeReader(XMLutility.ToXmlDocument(xdoc));

                DataSet ds = new DataSet();
                ds.ReadXml(reader);