 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
.NET Forum / .NET Framework / New Users / March 2007XmlSerializer without namespaces?
Hi, I'm using XmlSerializer objects to - surprise - serialize objects to xml. My problem is that it includes the xml namespace references xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" for every single object which 1) isn't necessary in this case and 2) makes the output xml more difficult to read. My question is: Is there a way to avoid that? Thanks! Jens Why is that a problem? There is no way to avoid it if you are serializing an instance of a class to XML, because to remove the namespace references would make it invalid as a serialized instance of a class (it could not be de-serialized). If you really want to remove the namespaces, you'll have to use your own code to do it.  SignatureHTH, Kevin Spencer Microsoft MVP Software Composer http://unclechutney.blogspot.com The shortest distance between 2 points is a curve. > Hi, > [quoted text clipped - 10 lines] > Thanks! > Jens > Why is that a problem? well, not a "real" problem, but as I originally wrote it makes the file harder to read. Plus it increases file size significantly. > There is no way to avoid it if you are serializing an instance of a class > to XML, because to remove the namespace references would make it invalid > as a serialized instance of a class (it could not be de-serialized). Sorry, but that is not true. I can remove these namespace refences and my objects de-serialize just fine... Anyway, if I have to leave them in there, is it possible to have them appear once in the xml document instead of once for every single object? Thanks! Jens You can write your own custom serializer if you really want to. Then you have full control over the process. SignatureHTH, Kevin Spencer Microsoft MVP Software Composer http://unclechutney.blogspot.com The shortest distance between 2 points is a curve. >> Why is that a problem? > [quoted text clipped - 13 lines] > Thanks! > Jens > You can write your own custom serializer if you really want to. Then you > have full control over the process. Of course I can - but that's what I wanted to avoid. The question is: As the XmlSerializer doesn't need these namespace references for de-serializing, then why does it put them there when serializing? This seems rather odd to me, so I thought there would be a simple way to turn it off. Jens Hello Jens, > My problem is that it includes the xml namespace references > > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" > xmlns:xsd="http://www.w3.org/2001/XMLSchema" > > for every single object which 1) isn't necessary in this case. The references themselves shouldn't do no harm, but if you want to strip them out, it only requires few lines of extra code. I haven't investigated very deeply into the xml serialization framework and/or the possible customizations and overrides the .NET class library supports, so it *might* indeed be possible to do this the "proper" way. In the meantime I would suggest that you use a simple XmlDocument object to strip away the unnecessary namespace references. Here's a simple example: ----------------- // create an object to serialize StringBuilder testObject = new StringBuilder(); // create xml serializer XmlSerializer xmlSerializer = new XmlSerializer(testObject.GetType()); // serialize to memory stream & load xml MemoryStream stream = new MemoryStream(); XmlDocument doc = new XmlDocument(); xmlSerializer.Serialize(stream, testObject); stream.Position = 0; doc.Load(stream); stream.Close(); // strip out default namespaces "xmlns:xsi" and "xmlns:xsd" doc.DocumentElement.Attributes.RemoveAll(); // save to file doc.Save(@"C:\Temp\Serialization Test.xml"); ----------------- Would this be a solution for you? Thanks! SignatureRegards, Mr. Jani Järvinen C# MVP Helsinki, Finland janij@removethis.dystopia.fi http://www.saunalahti.fi/janij/ > // create an object to serialize > StringBuilder testObject = new StringBuilder(); [quoted text clipped - 11 lines] > // save to file > doc.Save(@"C:\Temp\Serialization Test.xml"); Thanks for your answer. As you're using DocumentElement.Attributes(), I guess that's were you're assuming the namespace references to be put - if it were that way, I could very well live with that. But instead, the references appear on every object that's serialized - here's an example: <?xml version="1.0" encoding="utf-8" standalone="yes"?> <sensaction> <trigger name="Alle 10 Sekunden" type="TimerTrigger"> <TimerTriggerSettings xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" interval="10000" /> </trigger> <sensor name="Madmortem Realm Status" type="WowRealmStatusSensor"> <WowRealmStatusSensorSettings xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" RealmName="Madmortem" /> </sensor> <actor name="Mail an JW" type="SmtpActor"> <SmtpActorSettings xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" host="wilmsmail" from="sensaction@mycompany.com" to="me@mycompany.com" subject="Test" bodyFormatter="Mail" /> </actor> </senaction> Here's what I'm doing to create the above: I'm using a XmlTextWriter and manually create the <sensaction> and <trigger> elements using XmlTextWriter.WriteStartElement() and WriteEndElement(). Then I'm creating the XmlSerializer and call Serialize(XmlTextWriter, object) to serialize my objects... Any ideas? Jens Hello! > As you're using DocumentElement.Attributes(), I guess that's were you're > assuming the namespace references to be put - if it were that way, I could > very well live with that. No, my intention was only to write a simple example to get you started. Of course, if you serialize multiple objects, you would need to remove the references in multiple places. Or, you use XPath. Other than writing your own custom serializer, I'm not aware of a way with which you could disable the automatic namespace creation. You must judge whether it is work the extra work to get rid of them, or is it just cosmetic. SignatureRegards, Mr. Jani Järvinen C# MVP Helsinki, Finland janij@removethis.dystopia.fi http://www.saunalahti.fi/janij/ Try this: XmlSerializer serializer = new XmlSerializer(typeof(Order)); XmlSerializerNamespaces xmlnsEmpty = new XmlSerializerNamespaces(); xmlnsEmpty.Add("", ""); XmlTextWriter writer = new XmlTextWriter(fileName); serializer.Serialize(writer, order, xmlnsEmpty); Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
|
Reply to this Message
|
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.