internal void WriteObjectInternal(object value, ContentSerializerAttribute format, ContentTypeSerializer typeSerializer, Type declaredType)
{
if (format.Optional && (value == null || typeSerializer.ObjectIsEmpty(value)))
{
return;
}
var isReferenceObject = false;
if (value != null && !typeSerializer.TargetType.IsValueType)
{
if (_currentObjectStack.Contains(value))
{
throw new InvalidOperationException("Cyclic reference found during serialization. You may be missing a [ContentSerializer(SharedResource=true)] attribute.");
}
_currentObjectStack.Push(value);
isReferenceObject = true;
}
if (!format.FlattenContent)
{
Xml.WriteStartElement(format.ElementName);
if (value == null)
{
if (!format.AllowNull)
{
throw new InvalidOperationException(string.Format("Element {0} cannot be null.", format.ElementName));
}
Xml.WriteAttributeString("Null", "true");
}
else if (value.GetType() != typeSerializer.TargetType && !IsNullableType(declaredType))
{
Xml.WriteStartAttribute("Type");
WriteTypeName(value.GetType());
Xml.WriteEndAttribute();
typeSerializer = Serializer.GetTypeSerializer(value.GetType());
}
}
if (value != null && !typeSerializer.ObjectIsEmpty(value))
{
typeSerializer.Serialize(this, value, format);
}
if (!format.FlattenContent)
{
Xml.WriteEndElement();
}
if (isReferenceObject)
{
_currentObjectStack.Pop();
}
}
public override bool ObjectIsEmpty(object value)
{
if (_baseSerializer != null)
{
return(_baseSerializer.ObjectIsEmpty(value));
}
return(false);
}
