I have written a small sample to illustrate the error I am getting. Please help how to deserialize this. I always assumed if I am able to serialize I should be able to deserialize as I am using out of the box functionality from CLR
I get following exception when I run this sample.
The specified type was not recognized: name='Sample', namespace='AppConsole_ChandraSandpit', at SampleBase xmlns='AppConsole_ChandraSandpit'>
[XmlInclude(typeof(Sample))]
public class SampleBase
{
int SampleId { get; set; }
}
public class Sample : SampleBase
{
public int SampleId { get; set; }
}
public class SampleGroup
{
public int GroupId
{
get;
set;
}
public List<SampleBase> Samples
{
get;
set;
}
public void populate()
{
Samples = new List<SampleBase>();
for (int i = 0; i <= 5; i++)
{
Samples.Add(new Sample());
}
}
/// <summary>
/// Hydrates the object to xml string.
/// </summary>
/// <returns>serialized xml string of this object</returns>
public String Hydrate()
{
String xmlString = String.Empty;
try
{
xmlString = XMLSerializationHelper.SerializeObjectToXml<SampleGroup>(this);
}
catch (InvalidOperationException HydrateException)
{
throw new InvalidOperationException(String.Format("Could not Hydrate {0} to xmlstring. Please see inner exception for details", this.GetType().ToString()), HydrateException.InnerException);
}
return xmlString;
}
/// <summary>
/// Dehydrates the xml string to object.
/// </summary>
/// <param name="xmltoDehydarte">xml string to be dehydrated to object</param>
/// <returns>deHydrated object</returns>
public SampleGroup Dehydrate(String xmltoDehydarte)
{
SampleGroup dehydratedObject = null;
if (!String.IsNullOrEmpty(xmltoDehydarte))
{
try
{
XmlRootAttribute xRoot = new XmlRootAttribute();
xRoot.ElementName = "SampleGroup";
xRoot.Namespace = "AppConsole_ChandraSandpit";
xRoot.IsNullable = true;
dehydratedObject = XMLSerializationHelper.DeserializeXmlToObject<SampleGroup>(xmltoDehydarte, xRoot);
}
catch (InvalidOperationException deHydrateException)
{
throw new InvalidOperationException(String.Format("Could not deHydrate {0} to xmlstring. Please see inner exception for details", this.GetType().ToString()), deHydrateException.InnerException);
}
}
return dehydratedObject;
}
}
Following code for Serialization helper
public class XMLSerializationHelper : XmlSerializer
{
public static T DeserializeXmlToObject<T>(string xml, XmlRootAttribute xRoot)
{
using (MemoryStream memoryStream = new MemoryStream(StringToByteArrayUtf8(xml)))
{
XmlSerializer xmlSerializer = new XmlSerializer(typeof(T), xRoot);
XmlTextWriter xmlTextWriter = new XmlTextWriter(memoryStream, Encoding.UTF8);
return (T)xmlSerializer.Deserialize(xmlTextWriter.BaseStream);
}
}
public static string SerializeObjectToXml<T>(T obj)
{
MemoryStream memoryStream = new MemoryStream();
XmlSerializer xmlSerializer = new XmlSerializer(typeof(T), typeof(T).Namespace);
XmlTextWriter xmlTextWriter = new XmlTextWriter(memoryStream, Encoding.UTF8);
xmlSerializer.Serialize(xmlTextWriter, obj);
memoryStream = (MemoryStream) xmlTextWriter.BaseStream;
string xmlString = ByteArrayToStringUtf8(memoryStream.ToArray());
xmlTextWriter.Close();
memoryStream.Close();
memoryStream.Dispose();
return xmlString;
}
}
Can use the following in a console to test
internal class Program
{
private static void Main(string[] args)
{
SampleGroup SG = new SampleGroup();
SG.populate();
SG = SG.Dehydrate(SG.Hydrate());
Console.WriteLine("Test Complete press a Key");
Console.ReadKey();
}
}
I have written a small sample to illustrate the error I am getting. Please help how to deserialize this. I always assumed if I am able to serialize I should be able to deserialize as I am using out of the box functionality from CLR
I get following exception when I run this sample.
The specified type was not recognized: name='Sample', namespace='AppConsole_ChandraSandpit', at SampleBase xmlns='AppConsole_ChandraSandpit'>
[XmlInclude(typeof(Sample))]
public class SampleBase
{
int SampleId { get; set; }
}
public class Sample : SampleBase
{
public int SampleId { get; set; }
}
public class SampleGroup
{
public int GroupId
{
get;
set;
}
public List<SampleBase> Samples
{
get;
set;
}
public void populate()
{
Samples = new List<SampleBase>();
for (int i = 0; i <= 5; i++)
{
Samples.Add(new Sample());
}
}
/// <summary>
/// Hydrates the object to xml string.
/// </summary>
/// <returns>serialized xml string of this object</returns>
public String Hydrate()
{
String xmlString = String.Empty;
try
{
xmlString = XMLSerializationHelper.SerializeObjectToXml<SampleGroup>(this);
}
catch (InvalidOperationException HydrateException)
{
throw new InvalidOperationException(String.Format("Could not Hydrate {0} to xmlstring. Please see inner exception for details", this.GetType().ToString()), HydrateException.InnerException);
}
return xmlString;
}
/// <summary>
/// Dehydrates the xml string to object.
/// </summary>
/// <param name="xmltoDehydarte">xml string to be dehydrated to object</param>
/// <returns>deHydrated object</returns>
public SampleGroup Dehydrate(String xmltoDehydarte)
{
SampleGroup dehydratedObject = null;
if (!String.IsNullOrEmpty(xmltoDehydarte))
{
try
{
XmlRootAttribute xRoot = new XmlRootAttribute();
xRoot.ElementName = "SampleGroup";
xRoot.Namespace = "AppConsole_ChandraSandpit";
xRoot.IsNullable = true;
dehydratedObject = XMLSerializationHelper.DeserializeXmlToObject<SampleGroup>(xmltoDehydarte, xRoot);
}
catch (InvalidOperationException deHydrateException)
{
throw new InvalidOperationException(String.Format("Could not deHydrate {0} to xmlstring. Please see inner exception for details", this.GetType().ToString()), deHydrateException.InnerException);
}
}
return dehydratedObject;
}
}
Following code for Serialization helper
public class XMLSerializationHelper : XmlSerializer
{
public static T DeserializeXmlToObject<T>(string xml, XmlRootAttribute xRoot)
{
using (MemoryStream memoryStream = new MemoryStream(StringToByteArrayUtf8(xml)))
{
XmlSerializer xmlSerializer = new XmlSerializer(typeof(T), xRoot);
XmlTextWriter xmlTextWriter = new XmlTextWriter(memoryStream, Encoding.UTF8);
return (T)xmlSerializer.Deserialize(xmlTextWriter.BaseStream);
}
}
public static string SerializeObjectToXml<T>(T obj)
{
MemoryStream memoryStream = new MemoryStream();
XmlSerializer xmlSerializer = new XmlSerializer(typeof(T), typeof(T).Namespace);
XmlTextWriter xmlTextWriter = new XmlTextWriter(memoryStream, Encoding.UTF8);
xmlSerializer.Serialize(xmlTextWriter, obj);
memoryStream = (MemoryStream) xmlTextWriter.BaseStream;
string xmlString = ByteArrayToStringUtf8(memoryStream.ToArray());
xmlTextWriter.Close();
memoryStream.Close();
memoryStream.Dispose();
return xmlString;
}
}
Can use the following in a console to test
internal class Program
{
private static void Main(string[] args)
{
SampleGroup SG = new SampleGroup();
SG.populate();
SG = SG.Dehydrate(SG.Hydrate());
Console.WriteLine("Test Complete press a Key");
Console.ReadKey();
}
}
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