Deserialize returns null key and null value (count is correct)
0
I am experimenting with C# serialization, and had to serialize a Dictionary, as it isn't serializable I used an XML string, which then gets deserialized (example taken from https://blogs.msdn.microsoft.com/adam/2010/09/10/how-to-serialize-a-dictionary-or-hashtable-in-c/)
DictionaryDataItem class:
[Serializable]
public class DictionaryDataItem
{
public string Key;
public string Value;
public DictionaryDataItem(string key, string value)
{
Key = key;
Value = value;
}
public DictionaryDataItem()
{
Key = "";
Value = "";
}
}
Serialization code:
[WebMethod]
public string ListarPaises()
{
List<DictionaryDataItem> Paises = new List<DictionaryDataItem>();
XmlSerializer serializer = new XmlSerializer(typeof(List<DictionaryDataItem>));
StringWriter sw = new StringWriter();
XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
ns.Add("", "");
try
{
Dictionary<string, string> diccionario = FabricaLogica.getLogicaGeneral().ListarPaises();
foreach (string key in diccionario.Keys)
{
Paises.Add(new DictionaryDataItem(key, diccionario[key]));
}
serializer.Serialize(sw, Paises, ns);
} catch (Exception ex)
{
ThrowSoapException(ex);
}
return sw.ToString();
}
The serialization works and it returns the following string as xml:
<string xmlns="http://tempuri.org/">
<?xml version="1.0" encoding="utf-16"?>
<ArrayOfDictionaryDataItem>
<DictionaryDataItem>
<Key>ARG</Key>
<Value>ARGENTINA</Value>
</DictionaryDataItem>
<DictionaryDataItem>
<Key>BRA</Key>
<Value>BRASIL</Value>
</DictionaryDataItem>
<DictionaryDataItem>
<Key>URU</Key>
<Value>URUGUAY</Value>
</DictionaryDataItem>
</ArrayOfDictionaryDataItem>
</string>
And then, my deserialization code:
Dictionary<string, string> Paises = new Dictionary<string, string>();
string RawData = new WebService.WebService().ListarPaises();
XmlSerializer xs = new XmlSerializer(typeof(List<DictionaryDataItem>));
StringReader sr = new StringReader(RawData);
List<DictionaryDataItem> templist = (List<DictionaryDataItem>)xs.Deserialize(sr);
foreach (DictionaryDataItem di in templist)
{
Paises.Add(di.Key, di.Value);
}
return Paises;
I can see that templist has 3 items, but both key and value for all of the items is null.
Am I missing something?
c#
asked Nov 26 '18 at 1:47
Fede E.Fede E.
4721615
|
show 5 more comments
0
I am experimenting with C# serialization, and had to serialize a Dictionary, as it isn't serializable I used an XML string, which then gets deserialized (example taken from https://blogs.msdn.microsoft.com/adam/2010/09/10/how-to-serialize-a-dictionary-or-hashtable-in-c/)
DictionaryDataItem class:
[Serializable]
public class DictionaryDataItem
{
public string Key;
public string Value;
public DictionaryDataItem(string key, string value)
{
Key = key;
Value = value;
}
public DictionaryDataItem()
{
Key = "";
Value = "";
}
}
Serialization code:
[WebMethod]
public string ListarPaises()
{
List<DictionaryDataItem> Paises = new List<DictionaryDataItem>();
XmlSerializer serializer = new XmlSerializer(typeof(List<DictionaryDataItem>));
StringWriter sw = new StringWriter();
XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
ns.Add("", "");
try
{
Dictionary<string, string> diccionario = FabricaLogica.getLogicaGeneral().ListarPaises();
foreach (string key in diccionario.Keys)
{
Paises.Add(new DictionaryDataItem(key, diccionario[key]));
}
serializer.Serialize(sw, Paises, ns);
} catch (Exception ex)
{
ThrowSoapException(ex);
}
return sw.ToString();
}
The serialization works and it returns the following string as xml:
<string xmlns="http://tempuri.org/">
<?xml version="1.0" encoding="utf-16"?>
<ArrayOfDictionaryDataItem>
<DictionaryDataItem>
<Key>ARG</Key>
<Value>ARGENTINA</Value>
</DictionaryDataItem>
<DictionaryDataItem>
<Key>BRA</Key>
<Value>BRASIL</Value>
</DictionaryDataItem>
<DictionaryDataItem>
<Key>URU</Key>
<Value>URUGUAY</Value>
</DictionaryDataItem>
</ArrayOfDictionaryDataItem>
</string>
And then, my deserialization code:
Dictionary<string, string> Paises = new Dictionary<string, string>();
string RawData = new WebService.WebService().ListarPaises();
XmlSerializer xs = new XmlSerializer(typeof(List<DictionaryDataItem>));
StringReader sr = new StringReader(RawData);
List<DictionaryDataItem> templist = (List<DictionaryDataItem>)xs.Deserialize(sr);
foreach (DictionaryDataItem di in templist)
{
Paises.Add(di.Key, di.Value);
}
return Paises;
I can see that templist has 3 items, but both key and value for all of the items is null.
Am I missing something?
c#
asked Nov 26 '18 at 1:47
Fede E.Fede E.
4721615
Where do you setxmlelementandxmlarray?
– T.S.
Nov 26 '18 at 1:54
@T.S. hmm I have no idea... let me add the DictionaryDataItem class and the serialization code.
– Fede E.
Nov 26 '18 at 1:57
Out of curiosity, why are you learning about XML serialization? The article you're using as a guide is from 2010 and the industry has changed a lot since then: thesedays most serialization is done to JSON (which is much more space-efficient than XML) or to a binary format like protobufs.
– Dai
Nov 26 '18 at 1:57
You can serializeDictionary<TKey,TValue>to XML usingDataContractSerializer. The stockXmlSerializerdoes not supportIDictionarybecause the dev team ran out of time back in 2001 for .NET Framework 1.1. See here: theburningmonk.com/2010/05/…
– Dai
Nov 26 '18 at 1:59
@Dai it's a requirement for this a project in a class I'm taking... I saw lots of ways using json, I'm actually not a fan of xml, but had to do it with XML.
– Fede E.
Nov 26 '18 at 2:01
|
show 5 more comments
0
0
0
I am experimenting with C# serialization, and had to serialize a Dictionary, as it isn't serializable I used an XML string, which then gets deserialized (example taken from https://blogs.msdn.microsoft.com/adam/2010/09/10/how-to-serialize-a-dictionary-or-hashtable-in-c/)
DictionaryDataItem class:
[Serializable]
public class DictionaryDataItem
{
public string Key;
public string Value;
public DictionaryDataItem(string key, string value)
{
Key = key;
Value = value;
}
public DictionaryDataItem()
{
Key = "";
Value = "";
}
}
Serialization code:
[WebMethod]
public string ListarPaises()
{
List<DictionaryDataItem> Paises = new List<DictionaryDataItem>();
XmlSerializer serializer = new XmlSerializer(typeof(List<DictionaryDataItem>));
StringWriter sw = new StringWriter();
XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
ns.Add("", "");
try
{
Dictionary<string, string> diccionario = FabricaLogica.getLogicaGeneral().ListarPaises();
foreach (string key in diccionario.Keys)
{
Paises.Add(new DictionaryDataItem(key, diccionario[key]));
}
serializer.Serialize(sw, Paises, ns);
} catch (Exception ex)
{
ThrowSoapException(ex);
}
return sw.ToString();
}
The serialization works and it returns the following string as xml:
<string xmlns="http://tempuri.org/">
<?xml version="1.0" encoding="utf-16"?>
<ArrayOfDictionaryDataItem>
<DictionaryDataItem>
<Key>ARG</Key>
<Value>ARGENTINA</Value>
</DictionaryDataItem>
<DictionaryDataItem>
<Key>BRA</Key>
<Value>BRASIL</Value>
</DictionaryDataItem>
<DictionaryDataItem>
<Key>URU</Key>
<Value>URUGUAY</Value>
</DictionaryDataItem>
</ArrayOfDictionaryDataItem>
</string>
And then, my deserialization code:
Dictionary<string, string> Paises = new Dictionary<string, string>();
string RawData = new WebService.WebService().ListarPaises();
XmlSerializer xs = new XmlSerializer(typeof(List<DictionaryDataItem>));
StringReader sr = new StringReader(RawData);
List<DictionaryDataItem> templist = (List<DictionaryDataItem>)xs.Deserialize(sr);
foreach (DictionaryDataItem di in templist)
{
Paises.Add(di.Key, di.Value);
}
return Paises;
I can see that templist has 3 items, but both key and value for all of the items is null.
Am I missing something?
c#
asked Nov 26 '18 at 1:47
Fede E.Fede E.
4721615
I am experimenting with C# serialization, and had to serialize a Dictionary, as it isn't serializable I used an XML string, which then gets deserialized (example taken from https://blogs.msdn.microsoft.com/adam/2010/09/10/how-to-serialize-a-dictionary-or-hashtable-in-c/)
DictionaryDataItem class:
[Serializable]
public class DictionaryDataItem
{
public string Key;
public string Value;
public DictionaryDataItem(string key, string value)
{
Key = key;
Value = value;
}
public DictionaryDataItem()
{
Key = "";
Value = "";
}
}
Serialization code:
[WebMethod]
public string ListarPaises()
{
List<DictionaryDataItem> Paises = new List<DictionaryDataItem>();
XmlSerializer serializer = new XmlSerializer(typeof(List<DictionaryDataItem>));
StringWriter sw = new StringWriter();
XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
ns.Add("", "");
try
{
Dictionary<string, string> diccionario = FabricaLogica.getLogicaGeneral().ListarPaises();
foreach (string key in diccionario.Keys)
{
Paises.Add(new DictionaryDataItem(key, diccionario[key]));
}
serializer.Serialize(sw, Paises, ns);
} catch (Exception ex)
{
ThrowSoapException(ex);
}
return sw.ToString();
}
The serialization works and it returns the following string as xml:
<string xmlns="http://tempuri.org/">
<?xml version="1.0" encoding="utf-16"?>
<ArrayOfDictionaryDataItem>
<DictionaryDataItem>
<Key>ARG</Key>
<Value>ARGENTINA</Value>
</DictionaryDataItem>
<DictionaryDataItem>
<Key>BRA</Key>
<Value>BRASIL</Value>
</DictionaryDataItem>
<DictionaryDataItem>
<Key>URU</Key>
<Value>URUGUAY</Value>
</DictionaryDataItem>
</ArrayOfDictionaryDataItem>
</string>
And then, my deserialization code:
Dictionary<string, string> Paises = new Dictionary<string, string>();
string RawData = new WebService.WebService().ListarPaises();
XmlSerializer xs = new XmlSerializer(typeof(List<DictionaryDataItem>));
StringReader sr = new StringReader(RawData);
List<DictionaryDataItem> templist = (List<DictionaryDataItem>)xs.Deserialize(sr);
foreach (DictionaryDataItem di in templist)
{
Paises.Add(di.Key, di.Value);
}
return Paises;
I can see that templist has 3 items, but both key and value for all of the items is null.
Am I missing something?
c#
c#
asked Nov 26 '18 at 1:47
Fede E.Fede E.
4721615
asked Nov 26 '18 at 1:47
Fede E.Fede E.
4721615
edited Nov 26 '18 at 1:59
Fede E.
asked Nov 26 '18 at 1:47
Fede E.Fede E.
4721615
asked Nov 26 '18 at 1:47
Fede E.Fede E.
4721615
asked Nov 26 '18 at 1:47
Fede E.Fede E.
4721615
4721615
Where do you setxmlelementandxmlarray?
– T.S.
Nov 26 '18 at 1:54
@T.S. hmm I have no idea... let me add the DictionaryDataItem class and the serialization code.
– Fede E.
Nov 26 '18 at 1:57
Out of curiosity, why are you learning about XML serialization? The article you're using as a guide is from 2010 and the industry has changed a lot since then: thesedays most serialization is done to JSON (which is much more space-efficient than XML) or to a binary format like protobufs.
– Dai
Nov 26 '18 at 1:57
You can serializeDictionary<TKey,TValue>to XML usingDataContractSerializer. The stockXmlSerializerdoes not supportIDictionarybecause the dev team ran out of time back in 2001 for .NET Framework 1.1. See here: theburningmonk.com/2010/05/…
– Dai
Nov 26 '18 at 1:59
@Dai it's a requirement for this a project in a class I'm taking... I saw lots of ways using json, I'm actually not a fan of xml, but had to do it with XML.
– Fede E.
Nov 26 '18 at 2:01
|
show 5 more comments
Where do you setxmlelementandxmlarray?
– T.S.
Nov 26 '18 at 1:54
@T.S. hmm I have no idea... let me add the DictionaryDataItem class and the serialization code.
– Fede E.
Nov 26 '18 at 1:57
Out of curiosity, why are you learning about XML serialization? The article you're using as a guide is from 2010 and the industry has changed a lot since then: thesedays most serialization is done to JSON (which is much more space-efficient than XML) or to a binary format like protobufs.
– Dai
Nov 26 '18 at 1:57
You can serializeDictionary<TKey,TValue>to XML usingDataContractSerializer. The stockXmlSerializerdoes not supportIDictionarybecause the dev team ran out of time back in 2001 for .NET Framework 1.1. See here: theburningmonk.com/2010/05/…
– Dai
Nov 26 '18 at 1:59
@Dai it's a requirement for this a project in a class I'm taking... I saw lots of ways using json, I'm actually not a fan of xml, but had to do it with XML.
– Fede E.
Nov 26 '18 at 2:01
Where do you set
xmlelement and xmlarray?– T.S.
Nov 26 '18 at 1:54
Where do you set
xmlelement and xmlarray?– T.S.
Nov 26 '18 at 1:54
@T.S. hmm I have no idea... let me add the DictionaryDataItem class and the serialization code.
– Fede E.
Nov 26 '18 at 1:57
@T.S. hmm I have no idea... let me add the DictionaryDataItem class and the serialization code.
– Fede E.
Nov 26 '18 at 1:57
Out of curiosity, why are you learning about XML serialization? The article you're using as a guide is from 2010 and the industry has changed a lot since then: thesedays most serialization is done to JSON (which is much more space-efficient than XML) or to a binary format like protobufs.
– Dai
Nov 26 '18 at 1:57
Out of curiosity, why are you learning about XML serialization? The article you're using as a guide is from 2010 and the industry has changed a lot since then: thesedays most serialization is done to JSON (which is much more space-efficient than XML) or to a binary format like protobufs.
– Dai
Nov 26 '18 at 1:57
You can serialize
Dictionary<TKey,TValue> to XML using DataContractSerializer. The stock XmlSerializer does not support IDictionary because the dev team ran out of time back in 2001 for .NET Framework 1.1. See here: theburningmonk.com/2010/05/…– Dai
Nov 26 '18 at 1:59
You can serialize
Dictionary<TKey,TValue> to XML using DataContractSerializer. The stock XmlSerializer does not support IDictionary because the dev team ran out of time back in 2001 for .NET Framework 1.1. See here: theburningmonk.com/2010/05/…– Dai
Nov 26 '18 at 1:59
@Dai it's a requirement for this a project in a class I'm taking... I saw lots of ways using json, I'm actually not a fan of xml, but had to do it with XML.
– Fede E.
Nov 26 '18 at 2:01
@Dai it's a requirement for this a project in a class I'm taking... I saw lots of ways using json, I'm actually not a fan of xml, but had to do it with XML.
– Fede E.
Nov 26 '18 at 2:01
|
show 5 more comments
0
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Where do you set
xmlelementandxmlarray?– T.S.
Nov 26 '18 at 1:54
@T.S. hmm I have no idea... let me add the DictionaryDataItem class and the serialization code.
– Fede E.
Nov 26 '18 at 1:57
Out of curiosity, why are you learning about XML serialization? The article you're using as a guide is from 2010 and the industry has changed a lot since then: thesedays most serialization is done to JSON (which is much more space-efficient than XML) or to a binary format like protobufs.
– Dai
Nov 26 '18 at 1:57
You can serialize
Dictionary<TKey,TValue>to XML usingDataContractSerializer. The stockXmlSerializerdoes not supportIDictionarybecause the dev team ran out of time back in 2001 for .NET Framework 1.1. See here: theburningmonk.com/2010/05/…– Dai
Nov 26 '18 at 1:59
@Dai it's a requirement for this a project in a class I'm taking... I saw lots of ways using json, I'm actually not a fan of xml, but had to do it with XML.
– Fede E.
Nov 26 '18 at 2:01