How to Prevent self closing tags in XmlSerializer when no data is present

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C#

public string XmlSerializer(Object item)
{
    StringBuilder builder = new StringBuilder();
    XmlWriterSettings settings = new XmlWriterSettings();
    settings.OmitXmlDeclaration = true;
    settings.Indent = true; 

    using (XmlWriter xmlWriter = XmlWriter.Create(builder, settings))
    {
        XmlSerializer xmlSerializer = new XmlSerializer(item.GetType());
        XmlSerializerNamespaces nameSpaces = new XmlSerializerNamespaces(new[] { XmlQualifiedName.Empty });
        nameSpaces.Add("", "");
        
        xmlSerializer.Serialize(xmlWriter, item, nameSpaces);
    }

    return builder.ToString(); 
}

O/P :-

HTML

<get_country_details_response>
<country_id>10.0000</country_id>
<country_name>10.0000</country_name> 
<currency_name />   <!-- Need to Avoid This Self Closing Tag -->
</get_country_details_response>

Posted 16-Nov-15 21:51pm

Raseeth90

Updated 16-Nov-15 23:44pm

Tomas Takac

v3

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Mehdi Gholam 17-Nov-15 5:55am

Why?

Maciej Los 17-Nov-15 9:30am

Good question!

1 solution

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Henrik Jonsson · Answer 1 · 2015-11-17T03:22:00

One option is to perform some post-processing of the output using regular expressions:

First define the following Regex to find the empty tags:

C#

static Regex emptyElementRegex = new Regex(@"<(\w+)\s*/>");

Then process your output to replace all matching occurrences:

C#

var result = builder.ToString();
result = emptyElementRegex.Replace(result, @"<$1>");

This should transform ALL self-closing tags without attributes.