In the code I use for serialization/deserialization is the following:
   
[XmlElementAttribute(Form=XmlSchemaForm.Unqualified)]
public Decimal valArcBegAngle
{     
    [return: MarshalAs(UnmanagedType.Currency)]
    get {return m_valArcBegAngle;}     
    [param: MarshalAs(UnmanagedType.Currency)]
    set {m_valArcBegAngle = value;}     
}     
private Decimal m_valArcBegAngle;

What can I do so that, if the value is zero, the output is
<valArcBegAngle>000</valArcBegAngle> instead of
<valArcBegAngle>0</valArcBegAngle>?

Thanks in advance.