Add custom attributes when serializing Object to XML

Question

is it possible to have a declarative markup for a C# object model in order to generate something like this:

 ...
 <locales>
    <add id="698" code="tr" name="Turkish" xsd:Transform="Insert"/>
    <add id="701" code="fr" name="French" />
 </locales>
 ....

instead of :

  ...
  <locales>
    <add d5p1:Transform="Insert" Locator="asdasdf" id="698" code="tr" name="Turkish" xmlns:d5p1="xdt" />
    <add id="701" code="fr" name="French" />
  </locales>
  ...

a simple example of my code is:

public class BaseTransformation
{
    [XmlAttribute]
    public string IsDefault { get; set; }

    [XmlAttribute(Namespace ="xdt")]
    public string Transform { get; set; }

    //[XmlAttribute("Locator")]
    public string Locator { get; set; }       
}


public class Locale : BaseTransformation
{
    [XmlAttribute("id")]
    public long ID { get; set; }

    [XmlAttribute("code")]
    public string Code { get; set; }

    [XmlAttribute("name")]
    public string Name { get; set; }
}


public class Languages
{
    [XmlArray(ElementName = "locales")]
    [XmlArrayItem(ElementName = "add")]
    public Locale[] Locales { get; set; }
}

I am trying to generate dynamically web.config transformations. d5p1:Transform="Insert" xmlns:d5p1="xdt" those two are not recognizable on build and does not apply the same functionality as intended.

Just specify the namespace: msdn.microsoft.com/en-us/library/… — Dave M
– Dave M, Commented Sep 11, 2017 at 13:56
Private properties will not be included in xml. So make properties private. — jdweng
– jdweng, Commented Sep 11, 2017 at 13:59
The problem is it is serializing this -> d5p1:Transform="Insert" xmlns:d5p1="xdt"................. and I need only xdt:Transform="Insert" — noobed
– noobed, Commented Sep 11, 2017 at 14:04
@jdweng I am not having issues with which properties are being included — noobed
– noobed, Commented Sep 11, 2017 at 14:04

Dave M · Accepted Answer · 2017-09-11 15:33:51Z

2

You are confusing XML namespace prefixes with actual namespaces. In the Namespace property of XmlAttribute, you specify the full actual namespace, not the prefix you defined for that namespace. Namespace prefixes are arbitrary, and you can use whatever prefix you wish with a particular namespace using the xmlns attribute. The serialize thinks you are talking about a namespace called "xdt", not the actual namespace the "xdt" namespace typically refers to: "http://schemas.microsoft.com/XML-Document-Transform"

[XmlAttribute(Namespace = "http://schemas.microsoft.com/XML-Document-Transform")]
public string Transform { get; set; }

answered Sep 11, 2017 at 15:33

Dave M

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1 Comment

noobed Over a year ago

And I was indeed misinterpreting the two .. thus my confusion

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