type CoreProperties = 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 XmlnsCp read ReadXmlAttrXmlnsCp write WriteXmlAttrXmlnsCp;
	property XmlnsDc read ReadXmlAttrXmlnsDc write WriteXmlAttrXmlnsDc;
	property XmlnsDcterms read ReadXmlAttrXmlnsDcterms write WriteXmlAttrXmlnsDcterms;
	property XmlnsDcmitype read ReadXmlAttrXmlnsDcmitype write WriteXmlAttrXmlnsDcmitype;
	property XmlnsXsi read ReadXmlAttrXmlnsXsi write WriteXmlAttrXmlnsXsi;
	function ReadXmlAttrXmlnsCp();
	function WriteXmlAttrXmlnsCp(_value);
	function ReadXmlAttrXmlnsDc();
	function WriteXmlAttrXmlnsDc(_value);
	function ReadXmlAttrXmlnsDcterms();
	function WriteXmlAttrXmlnsDcterms(_value);
	function ReadXmlAttrXmlnsDcmitype();
	function WriteXmlAttrXmlnsDcmitype(_value);
	function ReadXmlAttrXmlnsXsi();
	function WriteXmlAttrXmlnsXsi(_value);

public
	//  Attributes
	XmlAttrXmlnsCp;
	XmlAttrXmlnsDc;
	XmlAttrXmlnsDcterms;
	XmlAttrXmlnsDcmitype;
	XmlAttrXmlnsXsi;

	// Children
	Title;
	Creator;
	LastModifiedBy;
	Revision;
	Created;
	Modified;

end;

function CoreProperties.Create();overload;
begin
	self.Create(nil, "cp", "coreProperties");
end;

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

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

function CoreProperties.Init();override;
begin
	self.XmlAttrXmlnsCp := new OpenXmlAttribute("xmlns", "cp", "http://schemas.openxmlformats.org/package/2006/metadata/core-properties");
	self.XmlAttrXmlnsDc := new OpenXmlAttribute("xmlns", "dc", "http://purl.org/dc/elements/1.1/");
	self.XmlAttrXmlnsDcterms := new OpenXmlAttribute("xmlns", "dcterms", "http://purl.org/dc/terms/");
	self.XmlAttrXmlnsDcmitype := new OpenXmlAttribute("xmlns", "dcmitype", "http://purl.org/dc/dcmitype/");
	self.XmlAttrXmlnsXsi := new OpenXmlAttribute("xmlns", "xsi", "http://www.w3.org/2001/XMLSchema-instance");
	self.Title := new OpenXmlPcdata(self, "dc", "title");
	self.Creator := new OpenXmlPcdata(self, "dc", "creator");
	self.LastModifiedBy := new OpenXmlPcdata(self, "cp", "lastModifiedBy");
	self.Revision := new OpenXmlPcdata(self, "cp", "revision");
	self.Created := new Created(self, "dcterms", "created");
	self.Modified := new Modified(self, "dcterms", "modified");
end;

function CoreProperties.InitAttributes();override;
begin
	attributes_ := array(
		self.XmlAttrXmlnsCp,
		self.XmlAttrXmlnsDc,
		self.XmlAttrXmlnsDcterms,
		self.XmlAttrXmlnsDcmitype,
		self.XmlAttrXmlnsXsi,
	);
end;

function CoreProperties.InitChildren();override;
begin
	child_elements_ := array(
		0: self.Title,
		1: self.Creator,
		2: self.LastModifiedBy,
		3: self.Revision,
		4: self.Created,
		5: self.Modified,
	);
	sorted_child_ := array(
		"": -1,
		self.Title.ElementName: 0,
		self.Creator.ElementName: 1,
		self.LastModifiedBy.ElementName: 2,
		self.Revision.ElementName: 3,
		self.Created.ElementName: 4,
		self.Modified.ElementName: 5,
	);
end;

function CoreProperties.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;
	node := ifObj(_node) ? _node.FirstChild() : nil;
	flag := false;
	if ifnil(child_elements_[0]) and length(child_elements_) > 0 then
	begin
		flag := true;
		arr := child_elements_;
		child_elements_ := array();
	end
	pre := ifString(self.Prefix) ? self.Prefix + ":" : "";
	while ifObj(node) do
	begin
		node_name := node.GetName();
		pos := sorted_child_[node_name];
		if ifnil(pos) or pos = -1 then
		begin
			obj := nil;
			case node_name of
			end;
			if ifObj(obj) then obj.InitNode(node);
		end
		else if flag then
		begin
			obj := arr[pos];
			obj.InitNode(node);
			child_elements_[length(child_elements_)] := obj;
		end
		else begin
			child_elements_[pos].InitNode(node);
		end
		node := node.NextElement();
	end
end;

function CoreProperties.Copy(_obj);override;
begin
	if not ifnil(_obj.XmlAttrXmlnsCp.Value) then
		self.XmlAttrXmlnsCp.Value := _obj.XmlAttrXmlnsCp.Value;
	if not ifnil(_obj.XmlAttrXmlnsDc.Value) then
		self.XmlAttrXmlnsDc.Value := _obj.XmlAttrXmlnsDc.Value;
	if not ifnil(_obj.XmlAttrXmlnsDcterms.Value) then
		self.XmlAttrXmlnsDcterms.Value := _obj.XmlAttrXmlnsDcterms.Value;
	if not ifnil(_obj.XmlAttrXmlnsDcmitype.Value) then
		self.XmlAttrXmlnsDcmitype.Value := _obj.XmlAttrXmlnsDcmitype.Value;
	if not ifnil(_obj.XmlAttrXmlnsXsi.Value) then
		self.XmlAttrXmlnsXsi.Value := _obj.XmlAttrXmlnsXsi.Value;
	self.Title.Copy(_obj.Title);
	self.Creator.Copy(_obj.Creator);
	self.LastModifiedBy.Copy(_obj.LastModifiedBy);
	self.Revision.Copy(_obj.Revision);
	self.Created.Copy(_obj.Created);
	self.Modified.Copy(_obj.Modified);
end;

function CoreProperties.ReadXmlAttrXmlnsCp();
begin
	return self.XmlAttrXmlnsCp.Value;
end;

function CoreProperties.WriteXmlAttrXmlnsCp(_value);
begin
	self.XmlAttrXmlnsCp.Value := _value;
end;

function CoreProperties.ReadXmlAttrXmlnsDc();
begin
	return self.XmlAttrXmlnsDc.Value;
end;

function CoreProperties.WriteXmlAttrXmlnsDc(_value);
begin
	self.XmlAttrXmlnsDc.Value := _value;
end;

function CoreProperties.ReadXmlAttrXmlnsDcterms();
begin
	return self.XmlAttrXmlnsDcterms.Value;
end;

function CoreProperties.WriteXmlAttrXmlnsDcterms(_value);
begin
	self.XmlAttrXmlnsDcterms.Value := _value;
end;

function CoreProperties.ReadXmlAttrXmlnsDcmitype();
begin
	return self.XmlAttrXmlnsDcmitype.Value;
end;

function CoreProperties.WriteXmlAttrXmlnsDcmitype(_value);
begin
	self.XmlAttrXmlnsDcmitype.Value := _value;
end;

function CoreProperties.ReadXmlAttrXmlnsXsi();
begin
	return self.XmlAttrXmlnsXsi.Value;
end;

function CoreProperties.WriteXmlAttrXmlnsXsi(_value);
begin
	self.XmlAttrXmlnsXsi.Value := _value;
end;