 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
.NET Forum / Languages / C# / August 2006Why the XML node is saved differently ?
I have an XML question: I'm have an XML node of type PointF and when it's saved to a file by XmlDocument.Save(...) it saves as I expect it to be saved: <ImageOrigin>{X=1.2, Y=3.4}</ImageOrigin> But on my boss laptop this XML node is saved as: <ImageOrigin xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <X>1.2</X> <Y>3.4</Y> </ImageOrigin> And it make my code to fail. Does anybody can tell why the difference? What should I do so the node will be saved on all computers as: <ImageOrigin>{X=1.2, Y=3.4}</ImageOrigin> ------ Thanks Sharon > I'm have an XML node of type PointF and when it's saved to a file by > XmlDocument.Save(...) it saves as I expect it to be saved: [quoted text clipped - 8 lines] > <Y>3.4</Y> > </ImageOrigin> XmlNodeType in System.Xml knows node types like Element or Attribute or Text but certainly not PointF. I think you need to explain in some more detail what you are doing. Is PointF a .NET type you have declared? If so how does the type declaration look? Do you use an XSD schema to define a type PointF? If so how does the type declaration look? How do you create the nodes in the XML document? Are you trying to use the XML serialization features in .NET?  SignatureMartin Honnen --- MVP XML http://JavaScript.FAQTs.com/ Ok, you are right. so here it is: I have a XML schema (XSD), and a derived DataSet that is created using this XML schema. To this DataSet I'm adding column: m_DataSet.Tables["MyTableName"].Columns.Add("ImageOrigin", typeof(PointF)); Later n in the code this column gets a value of type PointF. This DataSet content is saved to a file like this: ------------------------------------- m_DataSet.AcceptChanges(); string xmlDB = m_DataSet.GetXml(); XmlDocument doc = new XmlDocument(); doc.LoadXml( xmlDB ); doc.Save("DbFile.xml"); ------------------------------------- And all the computers I'm using the saved file are OK with the ImageOrigin node that saved like this: <ImageOrigin>{X=1.2, Y=3.4}</ImageOrigin> But on my boss laptop this XML node is saved as: <ImageOrigin xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <X>1.2</X> <Y>3.4</Y> </ImageOrigin> And it make my code to fail. Why this difference? What should I do so the node will be saved on all computers as: <ImageOrigin>{X=1.2, Y=3.4}</ImageOrigin> SignatureThanks Sharon > This DataSet content is saved to a file like this: > [quoted text clipped - 4 lines] > doc.LoadXml( xmlDB ); > doc.Save("DbFile.xml"); But then I don't think the Save method of the XmlDocument is creating the difference, I am pretty sure the difference is already there when you get the string of XML from the dataset: string xmlDB = m_DataSet.GetXml() SignatureMartin Honnen --- MVP XML http://JavaScript.FAQTs.com/ Hi Sharon, I agree with Martin. Also you can use m_DataSet.WriteXml("DbFile.xml"); directly? Will this give you the same output for a point object? Kevin Yu Microsoft Online Community Support ================================================== Get notification to my posts through email? Please refer to http://msdn.microsoft.com/subscriptions/managednewsgroups/default.aspx#notif ications. Note: The MSDN Managed Newsgroup support offering is for non-urgent issues where an initial response from the community or a Microsoft Support Engineer within 1 business day is acceptable. Please note that each follow up response may take approximately 2 business days as the support professional working with you may need further investigation to reach the most efficient resolution. The offering is not appropriate for situations that require urgent, real-time or phone-based interactions or complex project analysis and dump analysis issues. Issues of this nature are best handled working with a dedicated Microsoft Support Engineer by contacting Microsoft Customer Support Services (CSS) at http://msdn.microsoft.com/subscriptions/support/default.aspx. ================================================== (This posting is provided "AS IS", with no warranties, and confers no rights.) Of course, you are both right, the problrm is there ehrn the m_DataSet.GetXml() is invoked. But this is not solving my problem. I still need to know how make the node to be saved on all computers as: <ImageOrigin>{X=1.2, Y=3.4}</ImageOrigin> And not as: <ImageOrigin xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <X>1.2</X> <Y>3.4</Y> </ImageOrigin> ------- Thanks Sharon Hi Sharon, You have to inherit the IXmlSerializable class to make this happen. In the WriteXml method of IXmlSerializable, you can control how the object data is output. Kevin Yu Microsoft Online Community Support ================================================== (This posting is provided "AS IS", with no warranties, and confers no rights.) Thanks Kevin, can you post some example or forward me to one? I still do not understand why the difference exist? is it the XML parser version or what? ------- Thanks Sharon It's look like the IXmlSerializable is only at .NET framework 2.0, but I'm using the 1.1. SignatureThanks Sharon Sorry, my mistake. The IXmlSerializable is supported by the 1.1 Frameworks. But implementing the WriteXml() for all the derived DataSet is not that trivial. SignatureThanks Sharon Hi Sharon, Here are some code samples for IXmlSerializable. http://www.devx.com/dotnet/Article/29720/1763 http://www.developerfusion.co.uk/show/4639/ HTH. Kevin Yu Microsoft Online Community Support ================================================== (This posting is provided "AS IS", with no warranties, and confers no rights.) Thanks for your post and email. There is too much work to implement the WriteXml() of the IXmlSerializable, the DataSet structure is not that simple. Furthermore, I'm writing a library function that should return a string containing the DataSet content in a XML format. I guess that maybe the XML parser version is different in that specific laptop, so for now I added the following code when saving the string it to a file: // Anyhow I need the XmlDocument for another peace of code out of our scope. XmlDocument doc = new XmlDocument(); doc.LoadXml( m_filterHandler.GetXmlDB() ); XmlNode node = doc.SelectSingleNode(".../ImageOrigin"); if( node != null && node.ChildNodes.Count == 2 ) { // In case the pontF is in the unwanted format <ImageOrigin ...><X>1.2</X><Y>3.4</Y></ImageOrigin> node.RemoveAll(); node.InnerXml = ptf.ToString(); // will make it: <ImageOrigin>{X=1.2, Y=3.4}</ImageOrigin> } .... // some other peace of code out of our scope. doc.Save("MyFileName.xml"); This fix does the job. But still; I do not know why the difference exists as I already described in my previous post. Do you ??? ------ Thanks Sharon Hi Sharon, I'm sorry, since I didn't reproduced this on my machine, I don't know how this happens, either. Anyway, it was nice to know that you have had a workaround to this problem. If you have any questions, please feel free to post them int eh community. Kevin Yu Microsoft Online Community Support ================================================== (This posting is provided "AS IS", with no warranties, and confers no rights.) Thanks for your post and email. There is too much work do for implement the WriteXml() of the IXmlSerializable, the DataSet structure is not that simple. Furthermore, I'm writing a library function that should return a string containing the DataSet content in a XML format. I guess that maybe the XML parser version is different in the specific laptop, so for now I have added the following code when saving the string to a file: PointF ptf = new Pointf(1.2, 3.4); // Anyhow I need the XmlDocument for another peace of code out of our scope. XmlDocument doc = new XmlDocument(); doc.LoadXml( m_dataSet.GetXmlDB() ); XmlNode node = doc.SelectSingleNode(".../ImageOrigin"); if( node != null && node.ChildNodes.Count == 2 ) { // In case the pointF is in the unwanted format: <ImageOrigin ...><X>1.2</X><Y>3.4</Y></ImageOrigin> node.RemoveAll(); node.InnerXml = ptf.ToString(); // will make it: <ImageOrigin>{X=1.2, Y=3.4}</ImageOrigin> } .... // some other peace of code out of our scope. doc.Save("MyFileName.xml"); This fix does the job. But still; I do not know why the difference exists as I already described in my previous post. Do you ??? ------ Thanks Sharon Thanks for your post and email. There is too much work do for implement the WriteXml() of the IXmlSerializable, the DataSet structure is not that simple. Furthermore, I'm writing a library function that should return a string containing the DataSet content in a XML format. I guess that maybe the XML parser version is different in the specific laptop, so for now I have added the following code when saving the string to a file: PointF ptf = new Pointf(1.2, 3.4); // Anyhow I need the XmlDocument for another peace of code out of our scope. XmlDocument doc = new XmlDocument(); doc.LoadXml( m_dataSet.GetXmlDB() ); XmlNode node = doc.SelectSingleNode(".../ImageOrigin"); if( node != null && node.ChildNodes.Count == 2 ) { // In case the pointF is in the unwanted format: <ImageOrigin ...><X>1.2</X><Y>3.4</Y></ImageOrigin> node.RemoveAll(); node.InnerXml = ptf.ToString(); // will make it: <ImageOrigin>{X=1.2, Y=3.4}</ImageOrigin> } .... // some other peace of code out of our scope. doc.Save("MyFileName.xml"); This fix does the job. But still; I do not know why the difference exists as I already described in my previous post. Do you ??? ------ Thanks Sharon Thanks for your post and email. There is too much work do for implement the WriteXml() of the IXmlSerializable, the DataSet structure is not that simple. Furthermore, I'm writing a library function that should return a string containing the DataSet content in a XML format. I guess that maybe the XML parser version is different in the specific laptop, so for now I have added the following code when saving the string to a file: PointF ptf = new Pointf(1.2, 3.4); // Anyhow I need the XmlDocument for another peace of code out of our scope. XmlDocument doc = new XmlDocument(); doc.LoadXml( m_dataSet.GetXmlDB() ); XmlNode node = doc.SelectSingleNode(".../ImageOrigin"); if( node != null && node.ChildNodes.Count == 2 ) { // In case the pointF is in the unwanted format: <ImageOrigin ...><X>1.2</X><Y>3.4</Y></ImageOrigin> node.RemoveAll(); node.InnerXml = ptf.ToString(); // will make it: <ImageOrigin>{X=1.2, Y=3.4}</ImageOrigin> } .... // some other peace of code out of our scope. doc.Save("MyFileName.xml"); This fix does the job. But still; I do not know why the difference exists as I already described in my previous post. Do you ??? ------ Thanks Sharon 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.