I agree that you could implement a more robust solution manually, but the
benefit of the XmlSerializer is that it has already been implemented for you
(handling collections, and other types of weird scenarios), and works just
fine. Another point would be that the more checks you do slows down the
whole process. The ideal situation would be one that you can assume the file
was written out correctly, allowing you read it in with less checks.
On Sun, Sep 7, 2008 at 12:38 PM, mrkoconnell <[EMAIL PROTECTED]> wrote:
>
> Hi,
>
> I am looking at the XmlSerialize class and am bothered by the lack of
> node testing (NodeType) in this class. I am thinking that the
> XmlTextReader is a better choice for this very reason
> (System.Xml.XmlTextReader.NodeType). If you can serialize you object
> with this class you can test the node type such as:
>
> XmlTextReader objTxtRd;
> ... definition...
> while (objTxtRd.Read())
> {
> if((objTxtRd.NodeType==XmlNodeType.Element) ||
> (objTxtRd.NodeType==XmlNodeType.EndElement)||
> (objTxtRd.NodeType==XmlNodeType.XmlDeclaration))
> {
> ...process code
> }
> }
>
>
> On Sep 5, 1:59 pm, Dave <[EMAIL PROTECTED]> wrote:
> > All the examples i've found using XmlSerializer work with one time
> > serialization / deserialization of objects... or one time
> > serialization / deserialization of collection of objects.
> >
> > I need to be able to keep a file stream open, and just serialize
> > (IrcMessage) objects as they come into my server, then eventually have
> > some other thread deserialize the accumulated (IrcMessage) objects.
> > the problem is, every time i call:
> >
> > StreamWriter messageWriter = new
> > StreamWriter(_logFileStream, Encoding.ASCII);
> > XmlSerializer writer = new
> > XmlSerializer(typeof(IrcMessage));
> > writer.Serialize(messageWriter, ircMessage2);
> >
> > where:
> >
> > [Serializable]
> > public class IrcMessage
> > {
> > int _channelId = -1;
> > public int ChannelId
> > {
> > get { return _channelId; }
> > set { _channelId = value; }
> > }
> >
> > string _ircMessageText = null;
> > public string IrcMessageText
> > {
> > get { return _ircMessageText; }
> > set { _ircMessageText = value; }
> > }
> > }
> >
> > it causes the following output:
> >
> > <?xml version="1.0" encoding="us-ascii"?>
> > <IrcMessage xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> > xmlns:xsd="http://www.w3.org/2001/XMLSchema";>
> > <ChannelId>1</ChannelId>
> > <IrcMessageText>103 Host my hostabc</
> > IrcMessageText>
> > </IrcMessage><?xml version="1.0" encoding="us-ascii"?>
> > <IrcMessage xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> > xmlns:xsd="http://www.w3.org/2001/XMLSchema";>
> > <ChannelId>2</ChannelId>
> > <IrcMessageText>boohaha string</IrcMessageText>
> > </IrcMessage><?xml version="1.0" encoding="us-ascii"?>
> > <IrcMessage xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> > xmlns:xsd="http://www.w3.org/2001/XMLSchema";>
> > <ChannelId>1</ChannelId>
> > <IrcMessageText>sasdjlfsdjfsdjsfdjkfsdjksdfjksdafjk;sd;jasdf</
> > IrcMessageText>
> > </IrcMessage>
> >
> > one problem is i don't want the xml version info to keep being
> > rewritten...
> >
> > when trying to deserialize:
> >
> > StreamReader ircMessageReader = new
> > StreamReader(logFileStream);
> > XmlSerializer ircMessageParser = new
> > XmlSerializer(typeof(IrcMessage));
> > return
> > (IrcMessage)ircMessageParser.Deserialize(ircMessageReader);
> >
> > i blow up with Unexpected XML declaration... trying to manually remove
> > the declaration from the files causes other errors. but this is only
> > 1 issue i'm seeing.
> >
> > i could accumulate the objects in a collection then do a onetime
> > serialization of a collection of IrcMessage objects, then deserialize
> > the collection in the same manner - but this IS NOT what i'm after.
> > I.e. i wish to serialize IrcMessage objects to file as they come
> > in... (as stated in 2nd paragraph)
> >
> > any help would be most appreciated!
> >
> > thanks, dave
>
> >
>
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