Click here to Skip to main content
Click here to Skip to main content
 
Add your own
alternative version

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

, 7 Jun 2012 Ms-PL
Linq-To-XML Node Creation for Native C++
elmax-84498.zip
BuildProcessTemplates
Elmax.vsmdi
ElmaxNet
Properties
Elmax
Elmax.vcxproj.user
StringUtils
Local.testsettings
TestNativeElmax
app.ico
TestNativeElmax.vcxproj.user
TestNetElmax
Properties
TestNetElmax.csproj.user
TraceAndTestImpact.testsettings
TryoutNet
Properties
Settings.settings
Tryout
res
Tryout.ico
Tryout.vcxproj.user
elmax-ver083.zip
Elmax.vsmdi
Elmax.vcxproj.user
Local.testsettings
app.ico
TestNativeElmax.vcxproj.user
TestNetElmax.csproj.user
TraceAndTestImpact.testsettings
Settings.settings
Tryout.ico
Tryout.vcxproj.user
elmax-ver084.zip
Elmax.vsmdi
Elmax.vcxproj.user
Local.testsettings
app.ico
TestNativeElmax.vcxproj.user
TestNetElmax.csproj.user
TraceAndTestImpact.testsettings
Settings.settings
Tryout.ico
Tryout.vcxproj.user
elmax-ver085.zip
Elmax.vsmdi
Elmax.vcxproj.user
Local.testsettings
app.ico
TestNativeElmax.vcxproj.user
TestNetElmax.csproj.user
TraceAndTestImpact.testsettings
Settings.settings
Tryout.ico
Tryout.vcxproj.user
elmax-ver086.zip
Elmax.vsmdi
Elmax.vcxproj.user
Local.testsettings
app.ico
TestNativeElmax.vcxproj.user
TestNetElmax.csproj.user
TraceAndTestImpact.testsettings
Settings.settings
Tryout.ico
Tryout.vcxproj.user
elmax-ver087.zip
Elmax.vsmdi
Elmax.vcxproj.user
Local.testsettings
app.ico
TestNativeElmax.vcxproj.user
TestNetElmax.csproj.user
TraceAndTestImpact.testsettings
Settings.settings
Tryout.ico
Tryout.vcxproj.user
Elmax-ver089.zip
Elmax-ver089
Elmax.vsmdi
Elmax
Elmax.vcxproj.user
StringUtils
ElmaxNet
Properties
Local.testsettings
TestNativeElmax
app.ico
TestNativeElmax.vcxproj.user
TestNetElmax
Properties
TestNetElmax.csproj.user
TraceAndTestImpact.testsettings
Tryout
res
Tryout.ico
Tryout.vcxproj.user
TryoutNet
Properties
Settings.settings
ElmaxSrcVer082.zip
Elmax.vsmdi
Elmax.vcxproj.user
Local.testsettings
app.ico
TestNativeElmax.vcxproj.user
TestNetElmax.csproj.user
TraceAndTestImpact.testsettings
Settings.settings
Tryout.ico
Tryout.vcxproj.user
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Xml;
using Elmax;
using System.Diagnostics;

namespace TryoutNet
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private bool CreateAndInitDom(out XmlDocument doc)
        {
            doc = new XmlDocument();
            //if (doc != null)
            //{
            //    XmlProcessingInstruction pi = doc.CreateProcessingInstruction("xml", " version='1.0' encoding='UTF-8'");
            //    doc.AppendChild(pi);
            //}
            //else
            //    return false;
            return true;
        }
        private bool SaveXml(XmlDocument doc, System.String strFilename)
        {
            System.String szPath = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
            szPath = Path.Combine(szPath, strFilename);
            doc.Save(szPath);
            FileInfo fi = new FileInfo(szPath);

            return fi.Exists;
        }
        private bool PrettySaveXml(XmlDocument doc, System.String strFilename)
        {
            System.String szPath = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
            szPath = Path.Combine(szPath, strFilename);
            Document doc1 = new Document(doc);
            //doc.Save(szPath);
            doc1.PrettySave(szPath);
            FileInfo fi = new FileInfo(szPath);

            return fi.Exists;
        }
        private bool CreateAndLoadXml(out XmlDocument doc, System.String strFilename)
        {
            System.String szPath = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
            szPath = Path.Combine(szPath, strFilename);

            doc = new XmlDocument();
            try
            {
                doc.Load(szPath);
            }
            catch (System.Exception)
            {
                return false;
            }
            return true;
        }
        private bool DeleteFile(System.String strFilename)
        {
            System.String szPath = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
            szPath = Path.Combine(szPath, strFilename);

            File.Delete(szPath);
            FileInfo fi = new FileInfo(szPath);

            return fi.Exists == false;
        }
        private void TestWrite()
        {
            XmlDocument doc;
            bool b = CreateAndInitDom(out doc);
            if (b)
            {
                Element root = new Element();
                root.SetDomDoc(doc);

                Element all = root["All"];
                all["Version"].SetInt32(1);
                Element books = all["Books"].CreateNew(null);
                Element book1 = books["Book"].CreateNew(null);
                book1.Attr("ISBN").SetString("1111-1111-1111");
                book1["Title"].SetString("Pebbles in the Sky");
                book1["Price"].SetFloat(12.99f);
                book1["AuthorID"].SetInt32(111);

                Element book2 = books["Book"].CreateNew(null);
                book2.Attr("ISBN").SetString("2222-2222-2222");
                book2["Title"].SetString("Currents of Space");
                book2["Price"].SetFloat(10.00f);
                book2["AuthorID"].SetInt32(111);

                Element book3 = books["Book"].CreateNew(null);
                book3.Attr("ISBN").SetString("3333-3333-3333");
                book3["Title"].SetString("Foundation");
                book3["Price"].SetFloat(10.00f);
                book3["AuthorID"].SetInt32(111);

                Element book4 = books["Book"].CreateNew(null);
                book4.Attr("ISBN").SetString("4444-4444-4444");
                book4["Title"].SetString("2001: A Space Odyssey");
                book4["Price"].SetFloat(10.00f);
                book4["AuthorID"].SetInt32(222);

                Element book5 = books["Book"].CreateNew(null);
                book5.Attr("ISBN").SetString("5555-5555-5555");
                book5["Title"].SetString("Rendezvous with Rama");
                book5["Price"].SetFloat(10.00f);
                book5["AuthorID"].SetInt32(222);
                
                Element authors = all["Authors"].CreateNew(null);
                Element author = authors["Author"].CreateNew(null);
                author.Attr("Name").SetString("Isaac Asimov");
                author.Attr("AuthorID").SetInt32(111);
                author["Bio"].SetString("Sci-Fic author!");

                Element author2 = authors["Author"].CreateNew(null);
                author2.Attr("Name").SetString("Arthur C. Clark");
                author2.Attr("AuthorID").SetInt32(222);
                author2["Bio"].SetString("Sci-Fic author!");

                string strFilename = "Books.xml";
                PrettySaveXml(doc, strFilename);
            }
        }
        private void TestRead()
        {
            XmlDocument doc;
            string strFilename = "Books.xml";
            bool b = CreateAndLoadXml(out doc, strFilename);
            if (b)
            {
                Element root = new Element();
                root.SetDomDoc(doc);

                Element all = root["All"];
                if (all.Exists == false)
                {
                    Debug.Print("Error: root does not exists!");
                    return;
                }
                Debug.Print("Version : {0}\n", all["Version"].GetInt32(0));

                Debug.Print("Books");
                Debug.Print("=====");
                Element books = all["Books"];
                if (books.Exists)
                {
                    List<Element> listBooks = books.GetChildren("Book");
                    for (int i = 0; i < listBooks.Count; ++i)
                    {
                        Debug.Print("ISBN: {0}", listBooks[i].Attr("ISBN").GetString("Error: None"));
                        Debug.Print("Title: {0}", listBooks[i]["Title"].GetString("Error: No title!"));
                        Debug.Print("Price: {0}", listBooks[i]["Price"].GetFloat(0.0f));
                        Debug.Print("Desc: {0}", listBooks[i]["Desc"].GetString("Error: None"));
                        Debug.Print("AuthorID: {0}\n", listBooks[i]["AuthorID"].GetInt32(-1));
                    }
                }

                Debug.Print("Authors");
                Debug.Print("=======");
                Element authors = all["Authors"];
                if (authors.Exists)
                {
                    List<Element> listAuthors = authors.GetChildren("Author");
                    for (int i = 0; i < listAuthors.Count; ++i)
                    {
                        Debug.Print("Name: {0}", listAuthors[i].Attr("Name").GetString("Error: None"));
                        Debug.Print("AuthorID: {0}", listAuthors[i].Attr("AuthorID").GetInt32(-1));
                        Debug.Print("Bio: {0}\n", listAuthors[i]["Bio"].GetString("Error: No bio!"));
                    }
                }

                var vec = HyperElement.JoinOneToMany(authors.GetChildren("Author"), books.GetChildren("Book"), 
			        (x, y)=> x.Attr("AuthorID").GetString("a") == y["AuthorID"].GetString("a"));

		        for(int i=0; i< vec.Count; ++i)
		        {
			        Debug.Print("List of books by {0}", vec[i].Key.Attr("Name").GetString(""));
			        Debug.Print("=============================================");
			        for(int j=0; j< vec[i].Value.Count; ++j)
			        {
				        Debug.Print("{0}", vec[i].Value[j]["Title"].GetString("None"));
			        }
			        Debug.Print("");
		        }

            }
            //DeleteFile(strFilename);
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            TestWrite();
            TestRead();
        }
    }
}

By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.

If a file you wish to view isn't highlighted, and is a text file (not binary), please let us know and we'll add colourisation support for it.

License

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

Share

About the Author

Shao Voon Wong
Software Developer
Singapore Singapore
No Biography provided

| Advertise | Privacy | Mobile
Web01 | 2.8.141022.2 | Last Updated 7 Jun 2012
Article Copyright 2011 by Shao Voon Wong
Everything else Copyright © CodeProject, 1999-2014
Terms of Service
Layout: fixed | fluid