Xml root exist help

[jackdaniels]

Hello guys,

What i am trying to do is;
1- Check if xml file exist
If exist check if root element exist, if yes do nothing but if no exist then create root element
2- if xml doesnt exist create new xml file including root element

what am i doing wrong here ?

Código: Seleccionar todo

namespace xml_test
{
    public partial class Form1 : Form
    {
        string path = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) + "\\Test.xml";
        public Form1()
        {
            InitializeComponent();
        }


        private void read()
        {
            try
            {
                XmlDocument xml = new XmlDocument();
                xml.Load(path);
                XmlNodeList people = xml.SelectNodes("//Person");
                foreach (XmlNode person in people)
                {
                  //  ımageListBoxControl3.Items.Add(person.SelectSingleNode("Name").InnerText, 0);
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }

        }

        private void Form1_Load(object sender, EventArgs e)
        {
            if (File.Exists(path))
            {
                XmlDocument xmlDoc = new XmlDocument();
                xmlDoc.Load(path);
                XmlNode root = xmlDoc.SelectSingleNode("/root");
                if (root == null)
                {
                    XmlTextWriter xmlWriter = new XmlTextWriter(path, System.Text.Encoding.UTF8);
                    xmlWriter.Formatting = Formatting.Indented;
                    xmlWriter.WriteProcessingInstruction("xml", "version='1.0' encoding='UTF-8'");
                    xmlWriter.WriteStartElement("root");
                    xmlWriter.Close();
                    xmlDoc.Save(path); 
                    read();
                }
                else
                {
                    read();
                }
            }
            else
            {
                XmlDocument xmlDoc = new XmlDocument();
                XmlTextWriter xmlWriter = new XmlTextWriter(path, System.Text.Encoding.UTF8);
                xmlWriter.Formatting = Formatting.Indented;
                xmlWriter.WriteProcessingInstruction("xml", "version='1.0' encoding='UTF-8'");
                xmlWriter.WriteStartElement("root");
                xmlWriter.Close();
                xmlDoc.Save(path);
                oku(); 
            }
        } 
    }
}

project file
http://rghost.net/50327047

Thanks in Advanced

[rafaxplayer]

yo lo haria asi:

namespace xml_test

{

    public partial class Form1 : Form

    {

        string path = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) + "\\Rehber.xml";

        public Form1()

        {

            InitializeComponent();

        }





        private void oku()

        {

            try

            {

                XmlDocument xml = new XmlDocument();

                xml.Load(path);

                XmlNodeList kisiler = xml.SelectNodes("//Kisi");

                foreach (XmlNode kisi in kisiler)

                {



                }

            }

            catch (Exception ex)

            {

                MessageBox.Show(ex.Message);

            }



        }

        private void createxml() {



            try

            {

                XmlDocument xmlDoc = new XmlDocument();

                XmlDeclaration xmlDeclaration = xmlDoc.CreateXmlDeclaration("1.0", "utf-8", null);

                // Create the root element

                XmlElement rootNode = xmlDoc.CreateElement("root");

                xmlDoc.InsertBefore(xmlDeclaration, xmlDoc.DocumentElement);

                xmlDoc.AppendChild(rootNode);

                xmlDoc.Save(path);

                Debug.WriteLine("xml no existe");

                //oku();

            }

            catch (XmlException ex)

            {

                MessageBox.Show(ex.Message);

            }

        }

        private void Form1_Load(object sender, EventArgs e)

        {

            if (File.Exists(path))

            {

                try

                {

                    XmlDocument xmlDoc = new XmlDocument();

                    xmlDoc.Load(path);

                    XmlElement root = xmlDoc.DocumentElement;

                    if (root != null)

                    {

                        Debug.WriteLine("root exists");

                        //oku();

                    }

                    else

                    {



                        Debug.WriteLine("root not exists");

                        //oku();

                        createxml();

                    }

                }

                catch (XmlException ex) { 

                    MessageBox.Show(ex.Message);

                    createxml();

                }

            }

            else

            {

                

            }

        }

    }

}

[jackdaniels]

thanks alot rafax