<?xml version="1.0" encoding="utf-8" ?>
<bookstore>
  <book category="COOKING">
    <title lang="en">Everyday Italian</title>
    <detail>
      <author>Giada De Laurentiis</author>
      <year>2005</year>
      <price>30.00</price>
     </detail>
  </book>
  <book category="CHILDREN">
    <title lang="en">Harry Potter</title>
    <detail>
      <author>J K.Rowling</author>
      <year>2005</year>
      <price>29.99</price>
    </detail>
  </book>
  <book category="WEB">
    <title lang="en">Learning XML</title>
    <detail>
      <author>Erik T.Ray</author>
      <year>2003</year>
      <price>39.95</price>
    </detail>
  </book>
</bookstore>

        public string[] GetNextSiblingAllTextNodeInnerText(string node, string textNodeInnerText)
        {
            XmlDocument doc = XMLLoad();
            StringBuilder sbNode = new StringBuilder();
            sbNode.Append(node).Append("[text()='").Append(textNodeInnerText).Append("']");
            XmlNode nd = doc.SelectSingleNode(sbNode.ToString());
            this._TextNodeInnerTexts.Clear(); 
            TraverseTextNodeInnerText(nd.NextSibling);
            return this._TextNodeInnerTexts.ToArray(); 
        }