/// <summary>
/// Returns a <see cref="T:System.String"/> that represents the current <see cref="T:System.Object"/>.
/// </summary>
/// <returns>
/// A <see cref="T:System.String"/> that represents the current <see cref="T:System.Object"/>.
/// </returns>
public override string ToString()
{
string xmlDataType = (XmlData == null) ? typeof(XmlTransferObject).Name : XmlData.GetType().Name;
string additionalDataType = (AdditionalData == null) ? typeof(AdditionalInfo).Name : AdditionalData.GetType().Name;
return(String.Format(CultureInfo.InvariantCulture,
"<XmlData type='{0}'>{1}</XmlData><AdditionalData type='{2}'>{3}</AdditionalData><DatabaseId type='{4}'>{5}</DatabaseId>", xmlDataType, XmlData, additionalDataType, AdditionalData, DatabaseId));
}