Serialize a property using System.ComponentModel.DefaultValueAttribute

Question

Hello,

 

I try to serialize a n object to xml file.this object containt a property length

[System.Xml.Serialization.XmlAttributeAttribute()]
[System.ComponentModel.DefaultValueAttribute(1D)]
public double Length
{
    get
    {
        return this.lengthField;
    }
    set
    {
        this.lengthField = value;
    }
}

When i give the value 1 to this property it does not displayed. Despite when i tried to affect the value 1.65 or 1.75 it appeared

<Person Attribute1="Name" Attribute2="LastName" Attribute3="Age" Attribute4="Price">
<Person1 Attribute1Person1="NamePerson" Attribute2Person1="LastNamePerson" />
<Person2 Attribute1Person2="NamePerson" Attribute2Person2="LastNamePerson" />
<Person3 Attribute1Person3="NamePerson" Attribute2Person3="LastNamePerson" />
<Person4 Attribute1Person4="NamePerson" Attribute2Person4="LastNamePerson" />
</Person>
<Man Attribute1="Name" Attribute2="LastName" Attribute3="Age" Attribute4="Price" length="1.75">
<Man1 Attribute1Person1="NameMan" Attribute2Person1="LastNameMan" length="1.65" />
<Man2 Attribute1Person2="NameMan" Attribute2Person2="LastNameMan" />
<Man3 Attribute1Person3="NameMan" Attribute2Person3="LastNameMan" length="1.55" />
<Man4 Attribute1Person4="NameMan" Attribute2Person4="LastNameMan" />
</Man>
<Women Attribute1="Name" Attribute2="LastName" Attribute3="Age" Attribute4="Price">
<Women1 Attribute1Person1="NameWomen" Attribute2Person1="LastNameWomen" />
<Women2 Attribute1Person2="NameWomen" Attribute2Person2="LastNameWomen" />
<Women3 Attribute1Person3="NameWomen" Attribute2Person3="LastNameWomen" />
<Women4 Attribute1Person4="NameWomen" Attribute2Person4="LastNameWomen" />
</Women>

How can fix this problem to display Length=1 ?