c# deserialize objects issue

Question

This is my input XML file:

<?xml version="1.0" encoding="UTF-8"?>
<hosts>
  <host>
    <hostId>239|BS|OWN</hostId>
    <images>
      <image>
        <name>Pic.jpg</name>
        <main>true</main>
        <source>../Images/Melissa/Pic.jpg</source>
      </image>
    </images>
  </host>
</hosts>

and this is my class used to deserialiaze that XML file:

[XmlRoot("hosts")]
public class hosts
{
    [XmlElement("host")]       
    public List<Host> Listehosts { get; set; }
}


public class Host
{
    [XmlElement("hostId")]
    public string hostId { get; set; }              

    [XmlElement("images")]
    public List<Image> Listeimages { get; set; }
}


public class Image
{
    [XmlElement("name")]
    public string name { get; set; }
    [XmlElement("main")]
    public string main { get; set; }
    [XmlElement("source")]
    public string source { get; set; }      
}

And this the code of my main program:

string outputTmp = "Images.xml";
XmlSerializer deserializer = new XmlSerializer(typeof(hosts));
TextReader reader = new StreamReader(outputTmp);
object obj = deserializer.Deserialize(reader);
hosts XmlData = (hosts)obj;
reader.Close();            
Console.WriteLine(XmlData.Listehosts.Count);

The problem is that always images list are empty when I execute my program. The list of hosts is charged correctly but when I checked the list of image it contains permanently null value for all the attribute (name, main, source).

Am I missing something?

sm_ · Accepted Answer · 2014-09-10 10:42:42Z

1

Try this :

    public class Host
    {
         [XmlElement("hostId")]
         public string hostId { get; set; }              

         [XmlArray("images")] // CHANGED
         [XmlArrayItem("image", typeof(Image))] // CHANGED
         public List<Image> Listeimages { get; set; }
    }

answered Sep 10, 2014 at 10:42

sm_

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Comments

Simon Farshid · Accepted Answer · 2014-09-10 10:37:19Z

0

There is a small mistake in your code, add an ImageCollection class with a list inside.

public class ImageCollection
{
    [XmlElement("image")]  
    public List<Image> Listeimages { get; set; }
}

public class Host
{
     [XmlElement("hostId")]
     public string hostId { get; set; }              

     [XmlElement("images")]
     public ImageCollection ImageCollection { get; set; }
}

answered Sep 10, 2014 at 10:37

Simon Farshid

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1 Comment

KiraKo Over a year ago

HI Sepehr Farshid , that's method is also working thank you a lot for identifing my mistake.

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