xml serialization with conditions - c#

I have the following classes in a serialization:
[XmlRoot()]
public class XmlExample
{
private NodeA_Elem _nodea;
[XmlElemnt("NodeA")]
public NodeA_Elem NodeA
{
get
{
return _nodea;
}
set
{
_nodea=value;
}
}
private NodeB_Elem _nodeb;
[XmlElemnt("NodeB")]
public NodeB_Elem NodeB
{
get
{
return _nodeb;
}
set
{
_nodeb=value;
}
}
private NodeC_Elem _nodec;
[XmlElemnt("NodeC")]
public NodeC_Elem NodeC
{
get
{
return _nodec;
}
set
{
_nodec=value;
}
}
public class NodeA_Elem
{
[XmlText()]
public string value{get;set;}
}
public class NodeB_Elem
{
[XmlText()]
public string value{get;set;}
}
public class NodeC_Elem
{
[XmlText()]
public string value{get;set;}
}
If the value property of any classes NodaA, NodeB or NodeC is null or empty I have the following result:
<XmlExample>
<NodeA/>
<NodeB/>
<NodeC/>
</XmlExample>
What I have to do to these nodes don't appear like empty nodes if I don't set the value property?

You can use ShouldSerialize* pattern, something like this:-
public bool ShouldSerializeNodeA() {
return NodeA != null;
}
Refer here :-
Conditional xml serialization
Update:
Make it non nullable:-
[XmlElement(IsNullable = false)]
Edit:
Earlier I mentioned :-
public bool ShouldSerializeNodeA() {
return NodeB != null;
}
My mistake, it should be like this:-
public bool ShouldSerializeNodeA() {
return NodeA != null;
}

You can also use a boolean property with the suffix xSpecified to indicate whether or not to serialize a property. This is used by Xml clients which consume xml which have a default value (e.g. as specified with default=xxx in an XSD):
public bool NodeASpecified
{
get { return _nodea != null && !String.IsNullOrEmpty(_nodea.value); }
}
Do not mark these Specified properties with any Xml attributes.
Not related, but hard coding the *Specified properties to true in a partial class is useful if you have consumed a web service which has a default and a minOccurs=0, which would otherwise not be sent at all to the service if the value was coincidentally the same as the default value.

I added up some comments and find a solution. I could use the ShouldSerialize pattern in my code. The resulting code is:
[XmlRoot()]
public class XmlExample
{
private NodeA_Elem _nodea;
[XmlElemnt("NodeA")]
public NodeA_Elem NodeA
{
get
{
return _nodea;
}
set
{
_nodea=value;
}
}
public bool ShouldSerializeNodeA()
{
return !String.IsNullOrEmpty(_nodea.value);
}
private NodeB_Elem _nodeb;
[XmlElemnt("NodeB")]
public NodeB_Elem NodeB
{
get
{
return _nodeb;
}
set
{
_nodeb=value;
}
}
public bool ShouldSerializeNodeB()
{
return !String.IsNullOrEmpty(_nodeb.value);
}
private NodeC_Elem _nodec;
[XmlElemnt("NodeC")]
public NodeC_Elem NodeC
{
get
{
return _nodec;
}
set
{
_nodec=value;
}
}
public bool ShouldSerializeNodeC()
{
return !String.IsNullOrEmpty(_nodec.value);
}
}
public class NodeA_Elem
{
[XmlText()]
public string value{get;set;}
}
public class NodeB_Elem
{
[XmlText()]
public string value{get;set;}
}
public class NodeC_Elem
{
[XmlText()]
public string value{get;set;}
}
Edit:
Here is the full code of my example:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Xml;
using System.Xml.Serialization;
namespace Serialization_Example
{
class Program
{
static void Main(string[] args)
{
MyXmlDocument document = new MyXmlDocument();
document.MyExample.NodeA.value = "Value To Node A";
document.MyExample.NodeC.value = "Value To Node C";
document.WriteToXml(#"C:\Users\user_Name\Desktop\mydocument.xml");
}
}
[XmlRoot("xmlExample")]
public class XmlExample
{
private NodeA_Elem _nodea;
[XmlElement()]
public NodeA_Elem NodeA
{
get
{
return _nodea;
}
set
{
_nodea = value;
}
}
public bool ShouldSerializeNodeA()
{
return !String.IsNullOrEmpty(_nodea.value);
}
private NodeB_Elem _nodeb;
[XmlElement("NodeB")]
public NodeB_Elem NodeB
{
get
{
return _nodeb;
}
set
{
_nodeb = value;
}
}
public bool ShouldSerializeNodeB()
{
return !String.IsNullOrEmpty(_nodeb.value);
}
private NodeC_Elem _nodec;
[XmlElement("NodeC")]
public NodeC_Elem NodeC
{
get
{
return _nodec;
}
set
{
_nodec = value;
}
}
public bool ShouldSerializeNodeC()
{
return !String.IsNullOrEmpty(_nodec.value);
}
public XmlExample()
{
_nodea = new NodeA_Elem();
_nodeb = new NodeB_Elem();
_nodec = new NodeC_Elem();
}
}
public class NodeA_Elem
{
[XmlText()]
public string value { get; set; }
}
public class NodeB_Elem
{
[XmlText()]
public string value { get; set; }
}
public class NodeC_Elem
{
[XmlText()]
public string value { get; set; }
}
public class MyXmlDocument
{
private XmlExample _myexample;
public XmlExample MyExample
{
get
{
return _myexample;
}
set
{
_myexample = value;
}
}
public void WriteToXml(string path)
{
XmlSerializer serializer = new XmlSerializer(typeof(XmlExample));
XmlWriterSettings settings = new XmlWriterSettings();
settings.Indent = true;
settings.Encoding = Encoding.Unicode;
StringWriter txtwriter = new StringWriter();
XmlWriter xmlwtr = XmlWriter.Create(txtwriter, settings);
serializer.Serialize(xmlwtr, MyExample);
StreamWriter writer = new StreamWriter(path);
writer.Write(txtwriter.ToString());
writer.Close();
}
public MyXmlDocument()
{
_myexample = new XmlExample();
}
}
}
If you compile it, you'll see that if I don't set the value for NodeB.value, it won't generate a empty node like was happening before.

Related

C# Mongo BsonDocumentBackedClass not working for embedded POCO class

I have a two C# POCO's setup as BsonDocumentBackedClass. Individually they work as expected, if I make one a property of another the property class no longer works and I cannot set any values in it. Here is an example:
[Serializable, DataContract, BsonSerializer(typeof(VehicleStatusClassSerializer))]
public class VehicleStatus : BsonParent, IVehicleStatus
{
public VehicleStatus() : this(new BsonDocument()) { }
internal VehicleStatus(BsonDocument backingDocument) : base(backingDocument, new VehicleStatusClassSerializer()) { }
[DataMember, BsonElement]
public String IntelliStatus
{
get { return GetValue("IntelliStatus", default(String)); }
set { SetValue("IntelliStatus", value); }
}
[DataMember, BsonElement]
public String Description
{
get { return GetValue("Description", default(String)); }
set { SetValue("Description", value); }
}
[DataMember, BsonElement, BsonSerializer(typeof(GeoLocationVehicleInfoClassSerializer))]
public GeoLocationVehicleInfo VehicleInfo
{
get { return GetValue<GeoLocationVehicleInfo>("VehicleInfo", null); }
set { SetValue("VehicleInfo", value); }
}
The serializer looks like this
public class VehicleStatusClassSerializer : BsonDocumentBackedClassSerializer<VehicleStatus>
{
public VehicleStatusClassSerializer()
{
RegisterMember("IntelliStatus", "IntelliStatus", new StringSerializer());
RegisterMember("Description", "Description", new StringSerializer());
RegisterMember("VehicleInfo", "VehicleInfo", new GeoLocationVehicleInfoClassSerializer());
}
protected override VehicleStatus CreateInstance(BsonDocument backingDocument)
{
return new VehicleStatus(backingDocument);
}
}
The embedded class looks like this
[Serializable, DataContract, BsonSerializer(typeof(GeoLocationVehicleInfoClassSerializer))]
public class GeoLocationVehicleInfo : BsonDocumentBackedClass//, IGeoLocationVehicleInfo
{
public GeoLocationVehicleInfo() : this(new BsonDocument()) { }
internal GeoLocationVehicleInfo(BsonDocument backingDocument) : base(backingDocument, new GeoLocationClassSerializer())
{
}
[DataMember, BsonElement]
public Double speed {
get
{
try
{
return GetValue<Double>("speed", 0.0);
}
catch (Exception)
{
return 0.0;
}
}
set { SetValue("speed", value); }
}
}
And here is the embedded documents serializer
public class GeoLocationVehicleInfoClassSerializer : BsonDocumentBackedClassSerializer<GeoLocationVehicleInfo>
{
public GeoLocationVehicleInfoClassSerializer()
{
RegisterMember("speed", "speed", new BsonDoubleSerializer());
}
protected override GeoLocationVehicleInfo CreateInstance(BsonDocument backingDocument)
{
return new GeoLocationVehicleInfo(backingDocument);
}
}
So in the C# code if I try and do VehicleStatus.VehicleInfo.speed = 1.0. It never gets set.

Deserialize XML String into Class

I am trying to deserialize an XML String into my class which is derived from another class but I am having a problem in doing so, I am getting the following error:
{"The specified type is abstract: name='DeviceRequest', namespace='', at <DeviceRequest xmlns=''>."}
I assume i am missing some decorator attribute that will inform the serializer how to deserialize this xml into the class?
Here is my code:
//Usage
DeviceRequest dreq = DeviceRequest.ParseRequest(e.XML);
//Base Class
public abstract class IFSFRequestBase
{
private string m_ApplicationSender = "";
private int m_WorkStationID = 0;
private string m_RequestID = "";
[XmlAttribute()]
public abstract string RequestType { get; set; }
public abstract byte[] Message();
[XmlAttribute()]
public string ApplicationSender
{
get
{
return m_ApplicationSender;
}
set
{
m_ApplicationSender = value;
}
}
[XmlAttribute()]
public int WorkStationID
{
get
{
return m_WorkStationID;
}
set
{
m_WorkStationID = value;
}
}
[XmlAttribute()]
public string RequestID
{
get
{
return m_RequestID;
}
set
{
m_RequestID = value;
}
}
}
//Derived Class
public abstract class DeviceRequest : IFSFRequestBase
{
private string m_TerminalID = "";
private string m_SequenceID = "";
private Output m_OutputField = null;
[XmlAttribute(), DefaultValue("")]
public string TerminalID
{
get
{
return m_TerminalID;
}
set
{
m_TerminalID = value;
}
}
[XmlAttribute(), DefaultValue("")]
public string SequenceID
{
get
{
return m_SequenceID;
}
set
{
m_SequenceID = value;
}
}
[XmlElement("Output")]
public Output OutputField
{
get
{
return m_OutputField;
}
set
{
m_OutputField = value;
}
}
public static DeviceRequest ParseRequest(string sXML)
{
XmlSerializer serializer = new XmlSerializer(typeof(DeviceRequest));
StringReader sr = new StringReader(sXML);
NamespaceIgnorantXmlTextReader XMLWithoutNamespace = new NamespaceIgnorantXmlTextReader(sr);
return (DeviceRequest)serializer.Deserialize(XMLWithoutNamespace);
}
}
// helper class to ignore namespaces when de-serializing
public class NamespaceIgnorantXmlTextReader : XmlTextReader
{
public NamespaceIgnorantXmlTextReader(System.IO.TextReader reader) : base(reader) { }
public override string NamespaceURI
{
get { return ""; }
}
}
UPDATE:
OK based on the answers here. I have updated the code, I now have a class Display that derives from DeviceRequest. I now get the following error:
{"There is an error in XML document (2, 2)."}, {"<DeviceRequest xmlns=''> was not expected."}
public class Display : DeviceRequest
{
public static Display ParseRequest(string sXML)
{
XmlSerializer serializer = new XmlSerializer(typeof(Display));
StringReader sr = new StringReader(sXML);
NamespaceIgnorantXmlTextReader XMLWithoutNamespace = new NamespaceIgnorantXmlTextReader(sr);
return (Display)serializer.Deserialize(XMLWithoutNamespace);
}
[XmlAttribute()]
public override string RequestType
{
get { return "Output"; } set { }
}
public override byte[] Message()
{
throw new NotImplementedException();
}
}
DeviceRequest dreq = Display.ParseRequest(e.XML);
As DeviceRequest is an abstract type, it cannot be instantiated directly. It is impossible to directly deserialize into instances of Device-Request. That said, if there are some non-abstract classes derived from it, please show some of them.
OK, I have resolved this issue now. Thanks for the input guys.
I needed to add:
[System.Xml.Serialization.XmlRootAttribute(ElementName = "DeviceRequest")]
to the Display Class
[System.Xml.Serialization.XmlRootAttribute(ElementName = "DeviceRequest")]
public class Display : DeviceRequest
{
public static Display ParseRequest(string sXML)
{
XmlSerializer serializer = new XmlSerializer(typeof(Display));
StringReader sr = new StringReader(sXML);
NamespaceIgnorantXmlTextReader XMLWithoutNamespace = new NamespaceIgnorantXmlTextReader(sr);
return (Display)serializer.Deserialize(XMLWithoutNamespace);
}
[XmlAttribute()]
public override string RequestType
{
get { return "O"; } set { }
}
public override byte[] Message()
{
throw new NotImplementedException();
}
}

Avoid having to cast with generics and a list of custom data

I have the following code for supporting a list of different types :
public enum eType
{
tInt,
tString,
tDateTime
}
public interface ICustomType<out T>
{
T Value { get; }
}
public abstract class DifferentType
{
protected DifferentType(eType type, string mnemonic)
{
Type = type;
Mnemonic = mnemonic;
}
public string Mnemonic { get; private set; }
public eType Type { get; private set; }
}
public class DateTimeType : DifferentType, ICustomType<DateTime>
{
public DateTimeType(DateTime value, string mnemonic)
: base(eType.tDateTime, mnemonic)
{
Value = value;
}
public DateTime Value { get; private set; }
}
public class IntType : DifferentType, ICustomType<int>
{
public IntType(int value, string mnemonic)
: base(eType.tInt, mnemonic)
{
Value = value;
}
public int Value { get; private set; }
}
public class StringType : DifferentType, ICustomType<string>
{
public StringType(string value, string mnemonic)
: base(eType.tString, mnemonic)
{
Value = value;
}
public string Value { get; private set; }
}
public static class UtilValue
{
public static T GetValue<T>(DifferentType customType)
{
return ((ICustomType<T>)customType).Value;
}
}
public class testTypes2
{
public testTypes2()
{
var values = new List<DifferentType> { GetInt(), GetString(), GetDate() };
foreach (var i in values)
{
switch (i.Type)
{
case eType.tInt:
int resInt = UtilValue.GetValue<int>(i);
break;
case eType.tString:
string resString = UtilValue.GetValue<string>(i);
break;
case eType.tDateTime:
DateTime resDateTime = UtilValue.GetValue<DateTime>(i);
break;
}
}
}
private DateTimeType GetDate()
{
return new DateTimeType(new DateTime(2000, 1, 1), "MnemonicDate");
}
private IntType GetInt()
{
return new IntType(5, "MnemonicInt");
}
private StringType GetString()
{
return new StringType("ok", "MnemonicString");
}
}
and would like to avoid the cast at line return ((ICustomType<T>)customType).Value; in the UtilValue class, any idea how I can get rid of that while still keeping the design?
I am not even sure if this cast is expensive to do? My guess is most certainly.
Visitor-pattern example:
interface IDifferentTypeVisitor
{
void Visit(DateTimeType dt);
void Visit(StringType st);
}
class DifferentType
{
public abstract void Accept(IDifferentTypeVisitor visitor);
}
class DateTimeType : DifferentType
{
public void Accept(IDifferentTypeVisitor visitor)
{
visitor.Visit(this);
}
}
class StringType : DifferentType
{
public void Accept(IDifferentTypeVisitor visitor)
{
visitor.Visit(this);
}
}
class SomeVisitor : IDifferentTypeVisitor
{
public void Visit(DateTimeType dt)
{
//DateTime resDateTime = dt.Value; Or similar
}
public void Visit(StringType st)
{
//string resString = st.Value; Or similar
}
}
public class testTypes2
{
public testTypes2()
{
var values = new List<DifferentType> { /* Content */ };
var visitor = new SomeVisitor();
foreach (var i in values)
{
i.Accept(visitor);
}
}
}
In C# 4 with dynamic it's possible to save some code by adding this to DifferentType:
public void Accept(IDifferentTypeVisitor visitor)
{
visitor.Visit((dynamic)this);
}
and then delete all other Accept methods. It hurts performance but it looks better ;-)

Stack overflow error in singleton pattern

I have implemented Single Pattern. Here is my code i am getting the an error when i call the Test.BuildData() function. Please help
public class WordDataItem
{
public string Word { get; set; }
public string Definition { get; set; }
public int WordGroupKey { get; set; }
}
public class WordDataGroup
{
public List<WordDataItem> listItem = new List<WordDataItem>();
public int GroupKey { get; set; }
}
public sealed class WordDataSource
{
private static WordDataSource _dataSoruce;
private List<WordDataGroup> listGroup = new List<WordDataGroup>();
public List<WordDataGroup> ListGroup
{
get { return listGroup; }
set { listGroup = value; }
}
private WordDataSource() { }
public static WordDataSource Instance
{
get
{
if (Instance == null)
{
_dataSoruce = new WordDataSource();
}
return _dataSoruce;
}
}
}
public static class Test
{
public static void BuildData()
{
WordDataSource.Instance.ListGroup.Add(new WordDataGroup() { GroupKey = 8, listItem = new List<WordDataItem>() { new WordDataItem() {Word = "Hello", Definition="Greetings", WordGroupKey = 8}} });
}
}
I get an error of stack over flow when i call the Test.BuildData() function.
Your Instance property is recursively calling into itself when you check if it is null.
Try this:
public static WordDataSource Instance
{
get
{
if (_dataSoruce == null)
{
_dataSoruce = new WordDataSource();
}
return _dataSoruce;
}
}

Serialization on classes that implement IEnumerator

I have written a program which will serialize and de-serialize, it does this fine (I plan on implementing it on the subclasses once I get it properly working on one). However I have run into trouble when I decided I wanted to be able to iterate through the results using a Foreach.
After this didn't work I to find out had to implement the IEnumerator and IEnumerable interfaces and add the required methods to my class. So I have, and this does allow me to loop through my collections.
The problem starts when I try to combine the two things...
When serializing I originally got this error:
Inner:
{"The type ThereIsOnlyRules.Army was not expected. Use the XmlInclude or SoapInclude attribute to specify types that are not known statically."}
I added [XmlInclude(typeof(Employee))] to my class to prevent this exception but now first two root elements are called <ArrayofAnyType><AnyType> instead of <ArmyListing><Army>. I can't figure out how to change them back [XmlRoot("whatever")] for some reason has no effect.
When deserializing I get this error {"There is an error in XML document (0, 0)."}
Inner: {"Root element is missing."}
I have searched - but it seems like this error can be generated in numerous different ways. I haven't found any solutions that apply to my code (as far as I could tell).
I'd much appreciate some information on the cause or solution to these problems I'm having!
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Serialization;
using System.Runtime.Serialization;
using System.IO;
using System.Collections;
namespace ThereIsOnlyRules
{
[XmlInclude(typeof(Army))]
public class ArmyListing : IEnumerator, IEnumerable
{
// Fields
private List<Army> _army;
// Properties
[XmlArray("army-category")]
public List<Army> Army
{
get { return _army; }
set { _army = value; }
}
// Public Methods
public void SerializeToXML(ArmyListing armyListing)
{
try
{
//armyListing.army.Add(army);
XmlSerializer serializer = new XmlSerializer(typeof(ArmyListing));
//XmlSerializer serializer = new XmlSerializer(typeof(ArmyListing), new Type[] { typeof(ArmyListing) });
TextWriter textWriter = new StreamWriter(#"C:\Test\40k.xml");
serializer.Serialize(textWriter, armyListing);
textWriter.Close();
}
catch (Exception ex) { }
}
#region IEnumerator/IEnumerable req methods
[XmlIgnore]
private int position = -1;
//enumerator & ienumerable
public IEnumerator GetEnumerator()
{
return (IEnumerator)this;
}
//enumerator
public bool MoveNext()
{
position++;
return (position < Army.Count);
}
//ienumerable
public void Reset()
{
position = 0;
}
[XmlIgnore]
public object Current
{
get { return Army[position]; }
}
// Added to prevent Exception
// To be XML serializable, types which inherit from IEnumerable must have an implementation of Add(System.Object)
//at all levels of their inheritance hierarchy. ThereIsOnlyRules.ArmyListing does not implement Add(System.Object).
public void Add(Object fix)
{ }
#endregion
}
[Serializable]
public class Army// : IEnumerator, IEnumerable
{
// Fields
private List<UnitCategory> _unitCategory;
private string _armyName;
// Properties
[XmlArray("unit-category")]
public List<UnitCategory> UnitCategory
{
get { return _unitCategory; }
set { _unitCategory = value; }
}
[XmlAttribute("name")]
public string ArmyName
{
get { return _armyName; }
set { _armyName = value; }
}
//#region IEnumerator/IEnumerable req methods
//private int position = -1;
////enumerator & ienumerable
//public IEnumerator GetEnumerator()
//{
// return (IEnumerator)this;
//}
////enumerator
//public bool MoveNext()
//{
// position++;
// return (position < UnitCategory.Count);
//}
////ienumerable
//public void Reset()
//{
// position = 0;
//}
//public object Current
//{
// get { return UnitCategory[position]; }
//}
//public void Add(Object Army)
//{ }
//#endregion
}
[Serializable]
public class UnitCategory// : IEnumerator, IEnumerable
{
// Fields
private List<UnitType> _unitType;
private string _unitCategoryName;
// Properties
[XmlArray("unit-type")]
public List<UnitType> UnitType
{
get { return _unitType; }
set { _unitType = value; }
}
[XmlAttribute("name")]
public string UnitCategoryName
{
get { return _unitCategoryName; }
set { _unitCategoryName = value; }
}
//#region IEnumerator/IEnumerable req methods
//private int position = -1;
////enumerator & ienumerable
//public IEnumerator GetEnumerator()
//{
// return (IEnumerator)this;
//}
////enumerator
//public bool MoveNext()
//{
// position++;
// return (position < UnitType.Count);
//}
////ienumerable
//public void Reset()
//{
// position = 0;
//}
//public object Current
//{
// get { return UnitType[position]; }
//}
//public void Add(Object Army)
//{ }
//#endregion
}
[Serializable]
public class UnitType// : IEnumerator, IEnumerable
{
// Fields
private List<Unit> _unit;
private string _unitTypeName;
//Properties
[XmlArray("unit")]
public List<Unit> Unit
{
get { return _unit; }
set { _unit = value; }
}
[XmlAttribute("name")]
public string UnitTypeName
{
get { return _unitTypeName; }
set { _unitTypeName = value; }
}
//#region IEnumerator/IEnumerable req methods
//private int position = -1;
////enumerator & ienumerable
//public IEnumerator GetEnumerator()
//{
// return (IEnumerator)this;
//}
////enumerator
//public bool MoveNext()
//{
// position++;
// return (position < Unit.Count);
//}
////ienumerable
//public void Reset()
//{
// position = 0;
//}
//public object Current
//{
// get { return Unit[position]; }
//}
//public void Add(Object Army)
//{ }
//#endregion
}
[Serializable]
public class Unit
{
// Fields
private string _unitName;
private string _composition;
private string _weaponSkill;
private string _ballisticSkill;
private string _strength;
private string _initiative;
private string _toughness;
private string _wounds;
private string _attacks;
private string _leadership;
private string _savingThrow;
private string _specialRules;
private string _dedicatedTransport;
private string _options;
private string _armour;
private string _weapons;
// Properties
[XmlAttribute("name")]
public string UnitName
{
get { return _unitName; }
set { _unitName = value; }
}
[XmlAttribute("composition")]
public string Composition
{
get { return _composition; }
set { _composition = value; }
}
[XmlAttribute("weapon-skill")]
public string WeaponSkill
{
get { return _weaponSkill; }
set { _weaponSkill = value; }
}
[XmlAttribute("ballistic-skill")]
public string BallisticSkill
{
get { return _ballisticSkill; }
set { _ballisticSkill = value; }
}
[XmlAttribute("strength")]
public string Strength
{
get { return _strength; }
set { _strength = value; }
}
[XmlAttribute("toughness")]
public string Toughness
{
get { return _toughness; }
set { _toughness = value; }
}
[XmlAttribute("wounds")]
public string Wounds
{
get { return _wounds; }
set { _wounds = value; }
}
[XmlAttribute("initiative")]
public string Initiative
{
get { return _initiative; }
set { _initiative = value; }
}
[XmlAttribute("attacks")]
public string Attacks
{
get { return _attacks; }
set { _attacks = value; }
}
[XmlAttribute("leadership")]
public string Leadership
{
get { return _leadership; }
set { _leadership = value; }
}
[XmlAttribute("saving-throw")]
public string SaveThrow
{
get { return _savingThrow; }
set { _savingThrow = value; }
}
[XmlAttribute("armour")]
public string Armour
{
get { return _armour; }
set { _armour = value; }
}
[XmlAttribute("weapons")]
public string Weapons
{
get { return _weapons; }
set { _weapons = value; }
}
[XmlAttribute("special-rules")]
public string SpecialRules
{
get { return _specialRules; }
set { _specialRules = value; }
}
[XmlAttribute("dedicated-transport")]
public string DedicatedTransport
{
get { return _dedicatedTransport; }
set { _dedicatedTransport = value; }
}
[XmlAttribute("options")]
public string Options
{
get { return _options; }
set { _options = value; }
}
}
}
Form
using System;
using System.Windows.Forms;
using System.Collections.Generic;
using System.Xml.Serialization;
using System.IO;
namespace ThereIsOnlyRules
{
public partial class Form1 : Form
{
ArmyListing armyListing;
ArmyListing XmlListing = new ArmyListing();
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
SerializeArmyListings();
}
public static void SerializeArmyListings()
{
UnitCategory troopsCategory = new UnitCategory
{
UnitCategoryName = "Troops",
UnitType = new List<UnitType>
{
new UnitType
{
UnitTypeName = "Infantry",
Unit = new List<Unit>
{
new Unit
{
Armour = "Chitin",
Attacks = "3",
BallisticSkill = "100",
Composition = "20",
DedicatedTransport = "No",
Initiative = "3",
Leadership = "5",
Options = "8",
SaveThrow = "6+",
SpecialRules = "None",
Strength = "3",
Toughness = "4",
UnitName = "Hornmagant",
Weapons = "Many",
WeaponSkill = "3",
Wounds = "1"
}
}
}
}
};
Army army = new Army
{
ArmyName = "Tyranid",
UnitCategory = new List<UnitCategory>
{
troopsCategory
}
};
ArmyListing armyListing = new ArmyListing
{
Army = new List<Army>
{
army
}
};
armyListing.SerializeToXML(armyListing);// SerializeToXml(armyListing);
}
public ArmyListing DeserializeXml()
{
string path = #"C:\Test\40k.xml";
XmlSerializer serializer = new XmlSerializer(typeof(ArmyListing));
//XmlSerializer serializer = new XmlSerializer(typeof(ArmyListing), new Type[] { typeof(ArmyListing) });
StreamReader reader = new StreamReader(path);
XmlListing = (ArmyListing)serializer.Deserialize(reader);
reader.Close();
return XmlListing;
}
private void button2_Click(object sender, EventArgs e)
{
DeserializeXml();
////test
//foreach (var list in armyListing)
//{
// listBox1.DataSource = list;
//}
int xmlcount = XmlListing.Army.Count;
}
}
}
I found remove the implementing of IEnumerator, IEnumerable, then you don't have to use XmlInclude.
The output xml is following which can be deserialized.
<?xml version="1.0" encoding="utf-8"?>
<ArmyListing xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<army-category>
<Army name="Tyranid">
<unit-category>
<UnitCategory name="Troops">
<unit-type>
<UnitType name="Infantry">
<unit>
<Unit name="Hornmagant" composition="20" weapon-skill="3" ballistic-skill="100" strength="3" toughness="4" wounds="1" initiative="3" attacks="3" leadership="5" saving-throw="6+" armour="Chitin" weapons="Many" special-rules="None" dedicated-transport="No" options="8" />
</unit>
</UnitType>
</unit-type>
</UnitCategory>
</unit-category>
</Army>
</army-category>
</ArmyListing>
Edit:
I guess if class implement IEnumerable and IEnumerator. XmlSerialer will use it to enumerate. object Current {} property caused the type is lost. so Anytype shows.
What I suggest is to implement IEnumerable, IEnumerator
Following is my test code:
public class ArmyListing : IEnumerable<Army>, IEnumerator<Army>
{
// Fields
private List<Army> _army;
// Properties
[XmlArray("army-category")]
public List<Army> Army
{
get { return _army; }
set { _army = value; }
}
// Public Methods
public void SerializeToXML(ArmyListing armyListing)
{
try
{
//armyListing.army.Add(army);
XmlSerializer serializer = new XmlSerializer(typeof(ArmyListing));
//XmlSerializer serializer = new XmlSerializer(typeof(ArmyListing), new Type[] { typeof(ArmyListing) });
TextWriter textWriter = new StreamWriter(#"C:\Temp\40k.xml");
serializer.Serialize(textWriter, armyListing);
textWriter.Close();
}
catch (Exception ex) { }
}
#region IEnumerator/IEnumerable req methods
[XmlIgnore]
private int position = -1;
// Added to prevent Exception
// To be XML serializable, types which inherit from IEnumerable must have an implementation of Add(System.Object)
//at all levels of their inheritance hierarchy. ThereIsOnlyRules.ArmyListing does not implement Add(System.Object).
public void Add(Army fix)
{
if (_army == null)
_army = new List<Army>();
_army.Add(fix);
}
#endregion
public IEnumerator<Army> GetEnumerator()
{
return this;
}
IEnumerator IEnumerable.GetEnumerator()
{
return this;
}
[XmlIgnore]
public Army Current
{
get { return _army[position]; }
}
public void Dispose()
{
}
[XmlIgnore]
object IEnumerator.Current
{
get { return _army[position]; }
}
public bool MoveNext()
{
position++;
return (position < Army.Count);
}
public void Reset()
{
position = 0;
}
}

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