type ND = class(OpenXmlElement)
public
	function Create();overload;
	function Create(_node);overload;
	function Create(_parent, _prefix, _local_name);overload;
	function Init();override;
	function InitAttributes();override;
	function InitChildren();override;
	function InitNode(_node);override;
	function Copy(_obj);override;

	property N read ReadXmlAttrN write WriteXmlAttrN;
	property D read ReadXmlAttrD write WriteXmlAttrD;
	function ReadXmlAttrN();
	function WriteXmlAttrN(_value);
	function ReadXmlAttrD();
	function WriteXmlAttrD(_value);

public
	//  Attributes
	XmlAttrN;
	XmlAttrD;

	// Children

end;

function ND.Create();overload;
begin
	self.Create(nil, nil, "");
end;

function ND.Create(_node);overload;
begin
	class(OpenXmlElement).Create(_node);
end;

function ND.Create(_parent, _prefix, _local_name);overload;
begin
	class(OpenXmlElement).Create(_parent, _prefix, _local_name);
end;

function ND.Init();override;
begin
	self.XmlAttrN := new OpenXmlAttribute(nil, "n", nil);
	self.XmlAttrD := new OpenXmlAttribute(nil, "d", nil);
end;

function ND.InitAttributes();override;
begin
	attributes_ := array(
		self.XmlAttrN,
		self.XmlAttrD,
	);
end;

function ND.InitChildren();override;
begin
	child_elements_ := array(
	);
	sorted_child_ := array(
		"": -1,
	);
end;

function ND.InitNode(_node);override;
begin
	if ifObj(self.XmlNode) then
		for k,v in child_elements_ do v.InitNode(nil);
	self.XmlNode := ifObj(_node) ? _node : nil;
end;

function ND.Copy(_obj);override;
begin
	if not ifnil(_obj.XmlAttrN.Value) then
		self.XmlAttrN.Value := _obj.XmlAttrN.Value;
	if not ifnil(_obj.XmlAttrD.Value) then
		self.XmlAttrD.Value := _obj.XmlAttrD.Value;
end;

function ND.ReadXmlAttrN();
begin
	return self.XmlAttrN.Value;
end;

function ND.WriteXmlAttrN(_value);
begin
	self.XmlAttrN.Value := _value;
end;

function ND.ReadXmlAttrD();
begin
	return self.XmlAttrD.Value;
end;

function ND.WriteXmlAttrD(_value);
begin
	self.XmlAttrD.Value := _value;
end;