How to get the data of a specific node from a deserialised xml object?

//Using this object we can access the different classes & objects created from that XML

XmlSerializer deserializer = new XmlSerializer(typeof(ABC));
TextReader reader = new StreamReader(strSrcFilename);
object obj = deserializer.Deserialize(reader);
XmlData = (ABC)obj; // XmlData will have all the parsed data in form of Objects

</<pre lang="xml"><?xml version="1.0" encoding="ISO-8859-1" standalone="yes"?>
<ABC xmlns="http://www.abc.net/schema/ABC/r1.0">
    <CATEGORY>TestReport</CATEGORY>
    <ADMIN-DATA>
        <LANGUAGE>DE</LANGUAGE>
        <USED-LANGUAGES>
            <L-10 xml:space="preserve" L="EN">EN</L-10>
        </USED-LANGUAGES>
        <DOC-REVISIONS>
            <DOC-REVISION>
                <REVISION-LABEL>1.0.0.1</REVISION-LABEL>
                <STATE>under_develpment</STATE>
                <TEAM-MEMBER-REF DEST="TEAM-MEMBER">/EBAX/rm</TEAM-MEMBER-REF>
                <DATE>2015-03-27</DATE>
            </DOC-REVISION>
            <DOC-REVISION>
                <REVISION-LABEL>1.0.0.0</REVISION-LABEL>
                <STATE>under_develpment</STATE>
                <TEAM-MEMBER-REF DEST="TEAM-MEMBER">EBAX/rm</TEAM-MEMBER-REF>
                <DATE>2015-03-25</DATE>
            </DOC-REVISION>
        </DOC-REVISIONS>
    </ADMIN-DATA>
    <PROJECT-DATA>
    <PROJECT-DATA>
</ABC>

public partial class ABC: object, System.ComponentModel.INotifyPropertyChanged {
        
        /// <remarks/>
        public NMTOKENSTRING CATEGORY;
        
        /// <remarks/>
        [System.Xml.Serialization.XmlElementAttribute("ADMIN-DATA")]
        public ADMINDATA ADMINDATA;
        
        /// <remarks/>
        [System.Xml.Serialization.XmlElementAttribute("PROJECT-DATA")]
        public PROJECTDATA PROJECTDATA;
               
        /// <remarks/>
        [System.Xml.Serialization.XmlArrayItemAttribute(IsNullable=false)]
        public SDG[] SDGS;
        
        /// <remarks/>
        [System.Xml.Serialization.XmlAttributeAttribute()]
        public string S;
        
        /// <remarks/>
        [System.Xml.Serialization.XmlAttributeAttribute()]
        public string T;
        
        public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;
        
        protected void RaisePropertyChanged(string propertyName) {
            System.ComponentModel.PropertyChangedEventHandler propertyChanged = this.PropertyChanged;
            if ((propertyChanged != null)) {
                propertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName));
            }
        }
    }

 public partial class ADMINDATA : object, System.ComponentModel.INotifyPropertyChanged {
        
        /// <remarks/>
        public LENUM LANGUAGE;
        
        /// <remarks/>
        [System.Xml.Serialization.XmlElementAttribute("USED-LANGUAGES")]
        public MULTILANGUAGEPLAINTEXT USEDLANGUAGES;
        
        /// <remarks/>
        [System.Xml.Serialization.XmlArrayAttribute("COMPANY-DOC-INFOS")]
        [System.Xml.Serialization.XmlArrayItemAttribute(IsNullable=false)]
        public COMPANYDOCINFO[] COMPANYDOCINFOS;
        
        /// <remarks/>
        [System.Xml.Serialization.XmlArrayAttribute("DOC-REVISIONS")]
        [System.Xml.Serialization.XmlArrayItemAttribute(IsNullable=false)]
        public DOCREVISION[] DOCREVISIONS;
        
        /// <remarks/>
        [System.Xml.Serialization.XmlArrayItemAttribute(IsNullable=false)]
        public SDG[] SDGS;
        
        /// <remarks/>
        [System.Xml.Serialization.XmlAttributeAttribute()]
        public string S;
        
        /// <remarks/>
        [System.Xml.Serialization.XmlAttributeAttribute()]
        public string T;
        
        public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;
        
        protected void RaisePropertyChanged(string propertyName) {
            System.ComponentModel.PropertyChangedEventHandler propertyChanged = this.PropertyChanged;
            if ((propertyChanged != null)) {
                propertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName));
            }
        }
    }