Thread: xml settings files into C# plugin

What's the actual error you are getting? I thought you could only set static variables inside a static method, but I might be wrong...

Originally Posted by detlion1643

What's the actual error you are getting? I thought you could only set static variables inside a static method, but I might be wrong...

In french the error is 'Identificateur attendu'

I have found my issue with the msdn help !!!

the good translated class is :

Code:

using System.IO;
using System.Xml;
using System.Xml.Serialization;
using System.Text;

public class cMySettings
{

	public string FTPUsername;
	public string FTPPassword;
	public string FTPHostname;
	public string FTPHostpath;
    public string FTPDirectorypath;

	private static string XMLFilename;

    public cMySettings()
    {
        SetToDefault(this);
    }

	public cMySettings(string FileName)
	{
		XMLFilename = FileName;
		if (Path.GetExtension(XMLFilename).ToLower() != "xml")
			XMLFilename = XMLFilename + ".xml";
        if (File.Exists(XMLFilename) == false)
            SerializeToXML(new cMySettings());
	}

	public cMySettings(cMySettings Settings)
	{
		this.FTPUsername = Settings.FTPUsername;
		this.FTPPassword = Settings.FTPPassword;
		this.FTPHostname = Settings.FTPHostname;
		this.FTPHostpath = Settings.FTPHostpath;
		this.FTPDirectorypath = Settings.FTPDirectorypath;
	}

	public static void SerializeToXML(cMySettings Settings)
	{
		XmlSerializer xmlSerializer = new XmlSerializer(typeof(cMySettings));
		using (XmlTextWriter xmlTextWriter = new XmlTextWriter(XMLFilename, Encoding.UTF8)) {
			xmlTextWriter.Formatting = Formatting.Indented;
			xmlSerializer.Serialize(xmlTextWriter, Settings);
			xmlTextWriter.Close();
		}
	}

	public static void DeseralizeFromXML(cMySettings Settings)
	{
		FileStream fs = null;
		// do i have settings?
		if (File.Exists(XMLFilename) == true) {
			try {
				fs = new FileStream(XMLFilename, FileMode.Open, FileAccess.Read);
				XmlSerializer xmlSerializer = new XmlSerializer(typeof(cMySettings));
                XmlReader reader = XmlReader.Create(fs);
                cMySettings i;
                i = (cMySettings)xmlSerializer.Deserialize(reader);
			} catch {
				//load error of some sort, or OBJECT deserialize error
				//do we tell anyone?
				return;
			} finally {
				if ((fs != null))
					fs.Close();
				fs = null;
			}
		}

	}

	public static void Copy(cMySettings SourceSettings,cMySettings DestSettings)
	{
		DestSettings.FTPUsername = SourceSettings.FTPUsername;
		DestSettings.FTPPassword = SourceSettings.FTPPassword;
		DestSettings.FTPHostname = SourceSettings.FTPHostname;
		DestSettings.FTPHostpath = SourceSettings.FTPHostpath;
		DestSettings.FTPDirectorypath = SourceSettings.FTPDirectorypath;
	}

    public static void SetToDefault(cMySettings Settings)
    {
        Settings.FTPUsername = "FTPUsername";
        Settings.FTPPassword = "FTPPassword";
        Settings.FTPHostname = "FTPHostname";
        Settings.FTPHostpath = "Disque dur/Enregistrements/";
        Settings.FTPDirectorypath = "C:\\temp\\FTPCopy\\";
    }

	public static bool Compare(cMySettings Settings1,cMySettings Setting2)
	{
		bool functionReturnValue = false;

		if (Settings1.FTPUsername != Setting2.FTPUsername){functionReturnValue = false;return functionReturnValue;}
		if (Settings1.FTPPassword != Setting2.FTPPassword){functionReturnValue = false;return functionReturnValue;}
		if (Settings1.FTPHostname != Setting2.FTPHostname){functionReturnValue = false;return functionReturnValue;}
		if (Settings1.FTPHostpath != Setting2.FTPHostpath){functionReturnValue = false;return functionReturnValue;}
		if (Settings1.FTPDirectorypath != Setting2.FTPDirectorypath){functionReturnValue = false;return functionReturnValue;}
		functionReturnValue = true;
		return functionReturnValue;

	}

}

http://msdn.microsoft.com/fr-fr/libr.../d15aekdk.aspx
and
http://msdn.microsoft.com/fr-fr/libr.../he66c7f1.aspx

I have always an issue with the deserialer function!
I have tried:

Code:

    public static void DeseralizeFromXML(cMySettings Settings)
    {
        FileStream fs = null;
        // do i have settings?
        if (File.Exists(XMLFilename) == true)
        {
            try
            {
                fs = new FileStream(XMLFilename, FileMode.Open, FileAccess.Read);
                XmlSerializer xmlSerializer = new XmlSerializer(typeof(cMySettings));
                Settings = (cMySettings)xmlSerializer.Deserialize(fs);
            }
            catch
            {
                //load error of some sort, or OBJECT deserialize error
                //do we tell anyone?
                return;
            }
            finally
            {
                if ((fs != null))
                    fs.Close();
                fs = null;
            }
        }

    }

and also:

Code:

    public static void DeseralizeFromXML(cMySettings i)
    {
        FileStream fs = null;
        // do i have settings?
        if (File.Exists(XMLFilename) == true)
        {
            try
            {
                fs = new FileStream(XMLFilename, FileMode.Open, FileAccess.Read);
                XmlSerializer xmlSerializer = new XmlSerializer(typeof(cMySettings));
                XmlReader reader = XmlReader.Create(fs);
                //cMySettings i;
                i = (cMySettings)xmlSerializer.Deserialize(reader);
            }
            catch
            {
                //load error of some sort, or OBJECT deserialize error
                //do we tell anyone?
                return;
            }
            finally
            {
                if ((fs != null))
                    fs.Close();
                fs = null;
            }
        }

    }

But when i try to read my variable , by example PluginSettings.COMPort , the variable is empty !

Ok, If i convert the VB.NET code that follow , i obtain an error for the red line !!!

Code:

    Public Shared Sub DeseralizeFromXML(ByRef Settings As cMySettings)
        Dim fs As FileStream = Nothing
        ' do i have settings?
        If File.Exists(XMLFilename) = True Then
            Try
                fs = New FileStream(XMLFilename, FileMode.Open, FileAccess.Read)
                Dim xmlSerializer As New XmlSerializer(GetType(cMySettings))
                Settings = xmlSerializer.Deserialize(fs)
            Catch
                'load error of some sort, or OBJECT deserialize error
                'do we tell anyone?
                Exit Sub
            Finally
                If Not fs Is Nothing Then fs.Close()
                fs = Nothing
            End Try
        End If

    End Sub

In c# i obtain these lines:

Code:

    public static void DeseralizeFromXML(cMySettings Settings)
    {
        FileStream fs = null;
        // do i have settings?
        if (File.Exists(XMLFilename) == true)
        {
            try
            {
                fs = new FileStream(XMLFilename, FileMode.Open, FileAccess.Read);
                XmlSerializer xmlSerializer = new XmlSerializer(typeof(cMySettings));
                Settings = xmlSerializer.Deserialize(fs);
            }
            catch
            {
                //load error of some sort, or OBJECT deserialize error
                //do we tell anyone?
                return;
            }
            finally
            {
                if ((fs != null))
                    fs.Close();
                fs = null;
            }
        }

    }

the error is 'can't convert the object in cMySettings

Thanks for your help !!!

not seeing this completely

but in c# classes that you want to serialize should have a Serializable attribute

[Serializable]

then serial/deserial is easy!
that code looks like my code

anyway, there is tons of C# examples outside of this forum...

attached is example

hey I got some C# books, can you read English well enough?, id give you a book for free, just pay shipping
good books.... ill get you more info... and titles
(yea, real books, made of paper!)

Originally Posted by mitchjs

hey I got some C# books, can you read English well enough?, id give you a book for free, just pay shipping
good books.... ill get you more info... and titles
(yea, real books, made of paper!)

Why not, Thanks !

micthjs, you are the best :-)
Into my Deserialize command , i have just added a 'ref' i don't know why and all is running well know so my code is :

Code:

    public static void DeseralizeFromXML(ref cMySettings Settings)
    {
        FileStream fs = null;
        // do i have settings?
        if (File.Exists(XMLFilename) == true)
        {
            try
            {
                fs = new FileStream(XMLFilename, FileMode.Open, FileAccess.Read);
                XmlSerializer xmlSerializer = new XmlSerializer(typeof(cMySettings));
                //cMySettings i;
                Settings = (cMySettings)xmlSerializer.Deserialize(fs);
            }
            catch
            {
                //load error of some sort, or OBJECT deserialize error
                //do we tell anyone?
                return;
            }
            finally
            {
                if ((fs != null))
                    fs.Close();
                fs = null;
            }
        }

    }

And i initialise the xml file like that:

Code:

   DPath = pluginDataPath;

            //Settings with Xml file
            PluginSettings = new cMySettings(DPath + "iCarDuino");

            // read in defaults
            cMySettings.DeseralizeFromXML(ref PluginSettings);
            // copy to temp
            TempPluginSettings = new cMySettings(PluginSettings);