Get the Xml Text node value

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#region License and Copyright
/*
 * Dotnet Commons Xml
 *
 *
 * This library is free software; you can redistribute it and/or modify it 
 * under the terms of the GNU Lesser General Public License as published by 
 * the Free Software Foundation; either version 2.1 of the License, or 
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but 
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License 
 * for more details. 
 *
 * You should have received a copy of the GNU Lesser General Public License 
 * along with this library; if not, write to the 
 * Free Software Foundation, Inc., 
 * 59 Temple Place, 
 * Suite 330, 
 * Boston, 
 * MA 02111-1307 
 * USA 
 * 
 */
#endregion

using System;
using System.Collections;
using System.Collections.Specialized;
using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using System.Xml;
using System.Xml.Xsl;
using System.Xml.Serialization;

//using Dotnet.Commons.Reflection;

namespace Dotnet.Commons.Xml
{
  
  ///  
  /// <summary>
  /// This utility class contains wrapper functions that help to ease the handling and 
    /// manipulation of Xml documents, such as adding an element, adding an attribute
    /// to an element, copying and cloning of nodes, etc.
  ///
  /// </summary>
  /// 
    
  public abstract class XmlUtils
  {
    /// -------------------------------------------------------------------
    /// <summary>
    /// Get the Xml Text node value
    /// </summary>
    /// <param name="parentNode"></param>
    /// <param name="xPath"></param>
    /// <returns></returns>
    /// -------------------------------------------------------------------
    public static string GetTextNodeValueFromXPath(XmlNode parentNode, 
                             string xPath)
    {
      XmlNode node = parentNode.SelectSingleNode(xPath);

      if (node == null)
        return String.Empty;

      if (node.NodeType == XmlNodeType.Text || node.NodeType== XmlNodeType.Attribute)
        return node.Value;

      if (node.NodeType == XmlNodeType.Element)
      {        
        try
        {  
          if (node.FirstChild.NodeType == XmlNodeType.Text)
            return node.InnerText;
        }
        catch 
        { //Do Nothing 
        }
      }
      return String.Empty;
    }
    }
}

   
     


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