How can I build XML in C

Question

How can I generate valid XML in C

User · Answer

As above   I use stringbuilder append     Very straightforward  and you can then do xmldocument load strinbuilder object as parameter    You will probably find yourself using string concat within the append parameter  but this is a very straightforward approach

User · Answer

As above   I use stringbuilder append     Very straightforward  and you can then do xmldocument load strinbuilder object as parameter    You will probably find yourself using string concat within the append parameter  but this is a very straightforward approach

User · Answer

As above   I use stringbuilder append     Very straightforward  and you can then do xmldocument load strinbuilder object as parameter    You will probably find yourself using string concat within the append parameter  but this is a very straightforward approach

User · Answer

new XElement  Foo          from s in nameValuePairList        select              new XElement  Bar                     new XAttribute  SomeAttr    SomeAttrValue                              new XElement  Name   s Name                             new XElement  Value   s Value

User · Answer

For simple cases  I would also suggest looking at XmlOutput a fluent interface for building Xml   XmlOutput is great for simple Xml creation with readable and maintainable code  while generating valid Xml   The orginal post has some great examples

User · Answer

I think this resource should suffice for a moderate XML save load  Read Write XML using C    My task was to store musical notation  I choose XML  because I guess  NET has matured enough to allow easy solution for the task  I was right     This is my song file prototype    lt music judul  Kupu-Kupu yang Lucu  pengarang  Ibu Sud  tempo  120  birama  4 4  nadadasar  1 F  biramapembilang  4  biramapenyebut  4  gt       lt not angka  1  oktaf  0  naikturun    nilai  1   gt       lt not angka  2  oktaf  0  naikturun    nilai  0 5   gt       lt not angka  5  oktaf  1  naikturun     nilai  0 25   gt       lt not angka  2  oktaf  0  naikturun     nilai  0 125   gt       lt not angka  1  oktaf  0  naikturun    nilai  0 0625   gt   lt  music gt    That can be solved quite easily   For Save to File    private void saveToolStripMenuItem Click object sender  EventArgs e          saveFileDialog1 Title    Save Song File        saveFileDialog1 Filter    Song Files   xsong        if  saveFileDialog1 ShowDialog      DialogResult OK                  FileStream fs   new FileStream saveFileDialog1 FileName  FileMode Create            XmlTextWriter w   new XmlTextWriter fs  Encoding UTF8            w WriteStartDocument             w WriteStartElement  music             w WriteAttributeString  judul   Program music getTitle              w WriteAttributeString  pengarang   Program music getAuthor              w WriteAttributeString  tempo   Program music getTempo                 w WriteAttributeString  birama   Program music getBirama              w WriteAttributeString  nadadasar   Program music getNadaDasar              w WriteAttributeString  biramapembilang   Program music getBiramaPembilang                 w WriteAttributeString  biramapenyebut   Program music getBiramaPenyebut                  for  int i   0  i  lt  listNotasi Count  i                            CNot not   listNotasi i                w WriteStartElement  not                 w WriteAttributeString  angka   not getNot                       w WriteAttributeString  oktaf   not getOktaf                       String naikturun                  if not isTurunSetengah   naikturun                    else if not isNaikSetengah   naikturun                   w WriteAttributeString  naikturun  naikturun                w WriteAttributeString  nilai   not getNilaiNot                     w WriteEndElement                        w WriteEndElement              w Flush             fs Close                 For load file   openFileDialog1 Title    Open Song File   openFileDialog1 Filter    Song Files   xsong   if  openFileDialog1 ShowDialog      DialogResult OK        FileStream fs   new FileStream openFileDialog1 FileName  FileMode Open       XmlTextReader r   new XmlTextReader fs        while  r Read                  if  r NodeType    XmlNodeType Element                        if  r Name ToLower   Equals  music                                  Program music   new CMusic r GetAttribute  judul                        r GetAttribute  pengarang                        r GetAttribute  birama                        Convert ToInt32 r GetAttribute  tempo                         r GetAttribute  nadadasar                        Convert ToInt32 r GetAttribute  biramapembilang                         Convert ToInt32 r GetAttribute  biramapenyebut                                else                 if  r Name ToLower   Equals  not                                          CNot not   new CNot Convert ToInt32 r GetAttribute  angka     Convert ToInt32 r GetAttribute  oktaf                          if  r GetAttribute  naikturun   Equals                                                     not setNaikSetengah                                              else if  r GetAttribute  naikturun   Equals                                                      not setTurunSetengah                                              not setNilaiNot Convert ToSingle r GetAttribute  nilai                          listNotasi Add not                                       else             if  r NodeType    XmlNodeType Text                                Console WriteLine   tVALUE      r Value

User · Answer

For simple things  I just use the XmlDocument XmlNode XmlAttribute classes and XmlDocument DOM found in System XML   It generates the XML for me  I just need to link a few items together   However  on larger things  I use XML serialization

User · Answer

XmlWriter is the fastest way to write good XML  XDocument  XMLDocument and some others works good aswell  but are not optimized for writing XML  If you want to write the XML as fast as possible  you should definitely use XmlWriter

User · Answer

In the past I have created my XML Schema  then used a tool to generate C  classes which will serialize to that schema  The XML Schema Definition Tool is one example  http   msdn microsoft com en-us library x6c1kb0s VS 71  aspx

User · Answer

XmlWriter is the fastest way to write good XML  XDocument  XMLDocument and some others works good aswell  but are not optimized for writing XML  If you want to write the XML as fast as possible  you should definitely use XmlWriter

User · Answer

As above   I use stringbuilder append     Very straightforward  and you can then do xmldocument load strinbuilder object as parameter    You will probably find yourself using string concat within the append parameter  but this is a very straightforward approach

User · Answer

It depends on the scenario  XmlSerializer is certainly one way and has the advantage of mapping directly to an object model  In  NET 3 5  XDocument  etc  are also very friendly  If the size is very large  then XmlWriter is your friend   For an XDocument example   Console WriteLine      new XElement  Foo           new XAttribute  Bar    some  amp  value            new XElement  Nested    data        Or the same with XmlDocument   XmlDocument doc   new XmlDocument    XmlElement el    XmlElement doc AppendChild doc CreateElement  Foo     el SetAttribute  Bar    some  amp  value    el AppendChild doc CreateElement  Nested    InnerText    data   Console WriteLine doc OuterXml     If you are writing a large stream of data  then any of the DOM approaches  such as XmlDocument XDocument  etc   will quickly take a lot of memory  So if you are writing a 100 nbsp MB XML file from CSV  you might consider XmlWriter  this is more primitive  a write-once firehose   but very efficient  imagine a big loop here    XmlWriter writer   XmlWriter Create Console Out   writer WriteStartElement  Foo    writer WriteAttributeString  Bar    Some  amp  value    writer WriteElementString  Nested    data    writer WriteEndElement      Finally  via XmlSerializer    Serializable  public class Foo        XmlAttribute      public string Bar   get  set        public string Nested   get  set          Foo foo   new Foo       Bar    some  amp  value       Nested    data     new XmlSerializer typeof Foo   Serialize Console Out  foo     This is a nice model for mapping to classes  etc   however  it might be overkill if you are doing something simple  or if the desired XML doesn t really have a direct correlation to the object model   Another issue with XmlSerializer is that it doesn t like to serialize immutable types   everything must have a public getter and setter  unless you do it all yourself by implementing IXmlSerializable  in which case you haven t gained much by using XmlSerializer

User · Answer

For simple cases  I would also suggest looking at XmlOutput a fluent interface for building Xml   XmlOutput is great for simple Xml creation with readable and maintainable code  while generating valid Xml   The orginal post has some great examples

User · Answer

It depends on the scenario  XmlSerializer is certainly one way and has the advantage of mapping directly to an object model  In  NET 3 5  XDocument  etc  are also very friendly  If the size is very large  then XmlWriter is your friend   For an XDocument example   Console WriteLine      new XElement  Foo           new XAttribute  Bar    some  amp  value            new XElement  Nested    data        Or the same with XmlDocument   XmlDocument doc   new XmlDocument    XmlElement el    XmlElement doc AppendChild doc CreateElement  Foo     el SetAttribute  Bar    some  amp  value    el AppendChild doc CreateElement  Nested    InnerText    data   Console WriteLine doc OuterXml     If you are writing a large stream of data  then any of the DOM approaches  such as XmlDocument XDocument  etc   will quickly take a lot of memory  So if you are writing a 100 nbsp MB XML file from CSV  you might consider XmlWriter  this is more primitive  a write-once firehose   but very efficient  imagine a big loop here    XmlWriter writer   XmlWriter Create Console Out   writer WriteStartElement  Foo    writer WriteAttributeString  Bar    Some  amp  value    writer WriteElementString  Nested    data    writer WriteEndElement      Finally  via XmlSerializer    Serializable  public class Foo        XmlAttribute      public string Bar   get  set        public string Nested   get  set          Foo foo   new Foo       Bar    some  amp  value       Nested    data     new XmlSerializer typeof Foo   Serialize Console Out  foo     This is a nice model for mapping to classes  etc   however  it might be overkill if you are doing something simple  or if the desired XML doesn t really have a direct correlation to the object model   Another issue with XmlSerializer is that it doesn t like to serialize immutable types   everything must have a public getter and setter  unless you do it all yourself by implementing IXmlSerializable  in which case you haven t gained much by using XmlSerializer

User · Answer

For simple cases  I would also suggest looking at XmlOutput a fluent interface for building Xml   XmlOutput is great for simple Xml creation with readable and maintainable code  while generating valid Xml   The orginal post has some great examples

User · Answer

In the past I have created my XML Schema  then used a tool to generate C  classes which will serialize to that schema  The XML Schema Definition Tool is one example  http   msdn microsoft com en-us library x6c1kb0s VS 71  aspx

User · Answer

In the past I have created my XML Schema  then used a tool to generate C  classes which will serialize to that schema  The XML Schema Definition Tool is one example  http   msdn microsoft com en-us library x6c1kb0s VS 71  aspx

User · Answer

The best thing hands down that I have tried is LINQ to XSD  which is unknown to most developers   You give it an XSD Schema and it generates a perfectly mapped complete strongly-typed object model  based on LINQ to XML  for you in the background  which is really easy to work with - and it updates and validates your object model and XML in real-time  While it s still  Preview   I have not encountered any bugs with it   If you have an XSD Schema that looks like this      lt xs element name  RootElement  gt        lt xs complexType gt         lt xs sequence gt           lt xs element name  Element1  type  xs string    gt           lt xs element name  Element2  type  xs string    gt         lt  xs sequence gt          lt xs attribute name  Attribute1  type  xs integer  use  optional    gt          lt xs attribute name  Attribute2  type  xs boolean  use  required    gt        lt  xs complexType gt     lt  xs element gt    Then you can simply build XML like this   RootElement rootElement   new RootElement  rootElement Element1    Element1   rootElement Element2    Element2   rootElement Attribute1   5  rootElement Attribute2   true    Or simply load an XML from file like this   RootElement rootElement   RootElement Load filePath     Or save it like this   rootElement Save string   rootElement Save textWriter   rootElement Save xmlWriter     rootElement Untyped also yields the element in form of a XElement  from LINQ to XML

User · Answer

For simple things  I just use the XmlDocument XmlNode XmlAttribute classes and XmlDocument DOM found in System XML   It generates the XML for me  I just need to link a few items together   However  on larger things  I use XML serialization

User · Answer

The best thing hands down that I have tried is LINQ to XSD  which is unknown to most developers   You give it an XSD Schema and it generates a perfectly mapped complete strongly-typed object model  based on LINQ to XML  for you in the background  which is really easy to work with - and it updates and validates your object model and XML in real-time  While it s still  Preview   I have not encountered any bugs with it   If you have an XSD Schema that looks like this      lt xs element name  RootElement  gt        lt xs complexType gt         lt xs sequence gt           lt xs element name  Element1  type  xs string    gt           lt xs element name  Element2  type  xs string    gt         lt  xs sequence gt          lt xs attribute name  Attribute1  type  xs integer  use  optional    gt          lt xs attribute name  Attribute2  type  xs boolean  use  required    gt        lt  xs complexType gt     lt  xs element gt    Then you can simply build XML like this   RootElement rootElement   new RootElement  rootElement Element1    Element1   rootElement Element2    Element2   rootElement Attribute1   5  rootElement Attribute2   true    Or simply load an XML from file like this   RootElement rootElement   RootElement Load filePath     Or save it like this   rootElement Save string   rootElement Save textWriter   rootElement Save xmlWriter     rootElement Untyped also yields the element in form of a XElement  from LINQ to XML

User · Answer

It depends on the scenario  XmlSerializer is certainly one way and has the advantage of mapping directly to an object model  In  NET 3 5  XDocument  etc  are also very friendly  If the size is very large  then XmlWriter is your friend   For an XDocument example   Console WriteLine      new XElement  Foo           new XAttribute  Bar    some  amp  value            new XElement  Nested    data        Or the same with XmlDocument   XmlDocument doc   new XmlDocument    XmlElement el    XmlElement doc AppendChild doc CreateElement  Foo     el SetAttribute  Bar    some  amp  value    el AppendChild doc CreateElement  Nested    InnerText    data   Console WriteLine doc OuterXml     If you are writing a large stream of data  then any of the DOM approaches  such as XmlDocument XDocument  etc   will quickly take a lot of memory  So if you are writing a 100 nbsp MB XML file from CSV  you might consider XmlWriter  this is more primitive  a write-once firehose   but very efficient  imagine a big loop here    XmlWriter writer   XmlWriter Create Console Out   writer WriteStartElement  Foo    writer WriteAttributeString  Bar    Some  amp  value    writer WriteElementString  Nested    data    writer WriteEndElement      Finally  via XmlSerializer    Serializable  public class Foo        XmlAttribute      public string Bar   get  set        public string Nested   get  set          Foo foo   new Foo       Bar    some  amp  value       Nested    data     new XmlSerializer typeof Foo   Serialize Console Out  foo     This is a nice model for mapping to classes  etc   however  it might be overkill if you are doing something simple  or if the desired XML doesn t really have a direct correlation to the object model   Another issue with XmlSerializer is that it doesn t like to serialize immutable types   everything must have a public getter and setter  unless you do it all yourself by implementing IXmlSerializable  in which case you haven t gained much by using XmlSerializer

User · Answer

In the past I have created my XML Schema  then used a tool to generate C  classes which will serialize to that schema  The XML Schema Definition Tool is one example  http   msdn microsoft com en-us library x6c1kb0s VS 71  aspx

User · Answer

XmlWriter is the fastest way to write good XML  XDocument  XMLDocument and some others works good aswell  but are not optimized for writing XML  If you want to write the XML as fast as possible  you should definitely use XmlWriter

User · Answer

For simple things  I just use the XmlDocument XmlNode XmlAttribute classes and XmlDocument DOM found in System XML   It generates the XML for me  I just need to link a few items together   However  on larger things  I use XML serialization

User · Answer

It depends on the scenario  XmlSerializer is certainly one way and has the advantage of mapping directly to an object model  In  NET 3 5  XDocument  etc  are also very friendly  If the size is very large  then XmlWriter is your friend   For an XDocument example   Console WriteLine      new XElement  Foo           new XAttribute  Bar    some  amp  value            new XElement  Nested    data        Or the same with XmlDocument   XmlDocument doc   new XmlDocument    XmlElement el    XmlElement doc AppendChild doc CreateElement  Foo     el SetAttribute  Bar    some  amp  value    el AppendChild doc CreateElement  Nested    InnerText    data   Console WriteLine doc OuterXml     If you are writing a large stream of data  then any of the DOM approaches  such as XmlDocument XDocument  etc   will quickly take a lot of memory  So if you are writing a 100 nbsp MB XML file from CSV  you might consider XmlWriter  this is more primitive  a write-once firehose   but very efficient  imagine a big loop here    XmlWriter writer   XmlWriter Create Console Out   writer WriteStartElement  Foo    writer WriteAttributeString  Bar    Some  amp  value    writer WriteElementString  Nested    data    writer WriteEndElement      Finally  via XmlSerializer    Serializable  public class Foo        XmlAttribute      public string Bar   get  set        public string Nested   get  set          Foo foo   new Foo       Bar    some  amp  value       Nested    data     new XmlSerializer typeof Foo   Serialize Console Out  foo     This is a nice model for mapping to classes  etc   however  it might be overkill if you are doing something simple  or if the desired XML doesn t really have a direct correlation to the object model   Another issue with XmlSerializer is that it doesn t like to serialize immutable types   everything must have a public getter and setter  unless you do it all yourself by implementing IXmlSerializable  in which case you haven t gained much by using XmlSerializer

User · Answer

For simple things  I just use the XmlDocument XmlNode XmlAttribute classes and XmlDocument DOM found in System XML   It generates the XML for me  I just need to link a few items together   However  on larger things  I use XML serialization

User · Answer

XmlWriter is the fastest way to write good XML  XDocument  XMLDocument and some others works good aswell  but are not optimized for writing XML  If you want to write the XML as fast as possible  you should definitely use XmlWriter

User · Answer

new XElement  Foo          from s in nameValuePairList        select              new XElement  Bar                     new XAttribute  SomeAttr    SomeAttrValue                              new XElement  Name   s Name                             new XElement  Value   s Value

User · Answer

For simple cases  I would also suggest looking at XmlOutput a fluent interface for building Xml   XmlOutput is great for simple Xml creation with readable and maintainable code  while generating valid Xml   The orginal post has some great examples

User · Answer

I think this resource should suffice for a moderate XML save load  Read Write XML using C    My task was to store musical notation  I choose XML  because I guess  NET has matured enough to allow easy solution for the task  I was right     This is my song file prototype    lt music judul  Kupu-Kupu yang Lucu  pengarang  Ibu Sud  tempo  120  birama  4 4  nadadasar  1 F  biramapembilang  4  biramapenyebut  4  gt       lt not angka  1  oktaf  0  naikturun    nilai  1   gt       lt not angka  2  oktaf  0  naikturun    nilai  0 5   gt       lt not angka  5  oktaf  1  naikturun     nilai  0 25   gt       lt not angka  2  oktaf  0  naikturun     nilai  0 125   gt       lt not angka  1  oktaf  0  naikturun    nilai  0 0625   gt   lt  music gt    That can be solved quite easily   For Save to File    private void saveToolStripMenuItem Click object sender  EventArgs e          saveFileDialog1 Title    Save Song File        saveFileDialog1 Filter    Song Files   xsong        if  saveFileDialog1 ShowDialog      DialogResult OK                  FileStream fs   new FileStream saveFileDialog1 FileName  FileMode Create            XmlTextWriter w   new XmlTextWriter fs  Encoding UTF8            w WriteStartDocument             w WriteStartElement  music             w WriteAttributeString  judul   Program music getTitle              w WriteAttributeString  pengarang   Program music getAuthor              w WriteAttributeString  tempo   Program music getTempo                 w WriteAttributeString  birama   Program music getBirama              w WriteAttributeString  nadadasar   Program music getNadaDasar              w WriteAttributeString  biramapembilang   Program music getBiramaPembilang                 w WriteAttributeString  biramapenyebut   Program music getBiramaPenyebut                  for  int i   0  i  lt  listNotasi Count  i                            CNot not   listNotasi i                w WriteStartElement  not                 w WriteAttributeString  angka   not getNot                       w WriteAttributeString  oktaf   not getOktaf                       String naikturun                  if not isTurunSetengah   naikturun                    else if not isNaikSetengah   naikturun                   w WriteAttributeString  naikturun  naikturun                w WriteAttributeString  nilai   not getNilaiNot                     w WriteEndElement                        w WriteEndElement              w Flush             fs Close                 For load file   openFileDialog1 Title    Open Song File   openFileDialog1 Filter    Song Files   xsong   if  openFileDialog1 ShowDialog      DialogResult OK        FileStream fs   new FileStream openFileDialog1 FileName  FileMode Open       XmlTextReader r   new XmlTextReader fs        while  r Read                  if  r NodeType    XmlNodeType Element                        if  r Name ToLower   Equals  music                                  Program music   new CMusic r GetAttribute  judul                        r GetAttribute  pengarang                        r GetAttribute  birama                        Convert ToInt32 r GetAttribute  tempo                         r GetAttribute  nadadasar                        Convert ToInt32 r GetAttribute  biramapembilang                         Convert ToInt32 r GetAttribute  biramapenyebut                                else                 if  r Name ToLower   Equals  not                                          CNot not   new CNot Convert ToInt32 r GetAttribute  angka     Convert ToInt32 r GetAttribute  oktaf                          if  r GetAttribute  naikturun   Equals                                                     not setNaikSetengah                                              else if  r GetAttribute  naikturun   Equals                                                      not setTurunSetengah                                              not setNilaiNot Convert ToSingle r GetAttribute  nilai                          listNotasi Add not                                       else             if  r NodeType    XmlNodeType Text                                Console WriteLine   tVALUE      r Value

[c#] How can I build XML in C#?

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