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Linq-To-XML Style of Node Creation for C++

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12 Apr 2016Ms-PL11 min read 43.3K   500   29  
Linq-To-XML Node Creation for Native C++
using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Xml;

namespace Elmax
{
    /// <summary>
    /// Class to access XML CData Section
    /// </summary>
    public class CData
    {
        /// <summary>
        /// Default constructor
        /// </summary>
        public CData()
        {
            _CData = null;
        }
        /// <summary>
        /// Non-default Constructor
        /// </summary>
        /// <param name="cdata">XmlCDataSection to initialize from</param>
        public CData(XmlCDataSection cdata)
        {
            _CData = cdata;
        }

        /// <summary>
        /// Accessor for the content
        /// </summary>
        public string Content
        {
            get
            {
                return GetContent();
            }
        }

        /// <summary>
        /// Accessor for the length of the content
        /// </summary>
        public long Length
        {
            get
            {
                return GetLength();
            }
        }

        /// <summary>
        /// Accessor to determine if the CData Section is valid
        /// </summary>
        public bool Valid
        {
            get
            {
                return IsValid();
            }
        }

        /// <summary>
        /// Get the CDataSection data
        /// </summary>
        /// <returns>CData Section contents</returns>
        public string GetContent()
        {
	        if(_CData==null)
                throw new System.InvalidOperationException("Invalid CData object");

	        return _CData.Data;
        }
        /// <summary>
        /// Get the length of the CDataSection content in Char size (2 bytes)
        /// </summary>
        /// <returns></returns>
        public long GetLength()
        {
	        if(_CData==null)
                throw new System.InvalidOperationException("Invalid CData object");

	        return _CData.Length;
        }
        /// <summary>
        /// Delete itself
        /// </summary>
        /// <returns>true if successful</returns>
        public bool Delete()
        {
	        if(_CData==null)
                throw new System.InvalidOperationException("Invalid CData object");

	        XmlNode parent = _CData.ParentNode;
	        if(parent!=null)
	        {
		        _CData = (XmlCDataSection)(parent.RemoveChild(_CData));
	        }
	        else
		        return false;

	        return true;
        }

        /// <summary>
        /// Update the CData section contents
        /// </summary>
        /// <param name="data"></param>
        /// <returns>true if successful</returns>
        public bool Update(string data)
        {
	        if(_CData==null)
                throw new System.InvalidOperationException("Invalid CData object");

	        _CData.ReplaceData(0, data.Length, data);
	        return true;
        }
        /// <summary>
        /// Get internal XmlCDataSection object
        /// </summary>
        /// <returns>Internal XmlCDataSection object</returns>
        public XmlCDataSection GetInternalObject()
        {
            return _CData;
        }
        /// <summary>
        /// Check if CData Section is valid
        /// </summary>
        /// <returns>true if valid</returns>
        public bool IsValid()
        {
            if (_CData == null)
                return false;

            return true;
        }
        /// <summary>
        /// Internal XmlCDataSection object
        /// </summary>
        private XmlCDataSection _CData;

    }
}

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License

This article, along with any associated source code and files, is licensed under The Microsoft Public License (Ms-PL)


Written By
Software Developer (Senior)
Singapore Singapore
Shao Voon is from Singapore. His interest lies primarily in computer graphics, software optimization, concurrency, security, and Agile methodologies.

In recent years, he shifted focus to software safety research. His hobby is writing a free C++ DirectX photo slideshow application which can be viewed here.

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