type Reference = class(OpenXmlElement)
public
    function Create();overload;
    function Create(_node: XmlNode);overload;
    function Create(_parent: tslobj; _prefix: string; _local_name: string);overload;
    function Init();override;
    function Copy(_obj: Reference);override;

public

    // attributes property
    property Type read ReadXmlAttrType write WriteXmlAttrType;
    property Id read ReadXmlAttrId write WriteXmlAttrId;
    function ReadXmlAttrType();
    function WriteXmlAttrType(_value);
    function ReadXmlAttrId();
    function WriteXmlAttrId(_value);

public
    // Attributes
    XmlAttrType: OpenXmlAttribute;
    XmlAttrId: OpenXmlAttribute;


end;

function Reference.Create();overload;
begin
    {self.}Create(nil, "w", "");
end;

function Reference.Create(_node: XmlNode);overload;
begin
    class(OpenXmlElement).Create(_node: XmlNode);
end;

function Reference.Create(_parent: tslobj; _prefix: string; _local_name: string);overload;
begin
    setsysparam(pn_calcctrlword(), getsysparam(pn_calcctrlword()) .| 0x200);
    class(OpenXmlElement).Create(_parent, _prefix, _local_name);
end;

function Reference.Init();override;
begin
    pre := {self.}Prefix ? {self.}Prefix + ":" : "";
    attributes_ := array();
    attributes_pf_ := array(
        pre + "type": makeweakref(thisFunction(WriteXmlAttrType)),
        "r:id": makeweakref(thisFunction(WriteXmlAttrId)),
    );
    sorted_child_ := array(
    );
    container_ := new TSOfficeContainer(sorted_child_);
end;

function Reference.Copy(_obj: Reference);override;
begin
    tslassigning_backup := tslassigning;
    tslassigning := 1;
    class(OpenXmlElement).Copy(_obj);
    if not ifnil(_obj.Type) then
        {self.}Type := _obj.Type;
    if not ifnil(_obj.Id) then
        {self.}Id := _obj.Id;
    tslassigning := tslassigning_backup;
end;

function Reference.ReadXmlAttrType();
begin
    return {self.}XmlAttrType.Value;
end;

function Reference.WriteXmlAttrType(_value);
begin
    if ifnil({self.}XmlAttrType) then
    begin
        {self.}XmlAttrType := new OpenXmlAttribute({self.}Prefix, "type", nil);
        attributes_[length(attributes_)] := {self.}XmlAttrType;
    end
    {self.}XmlAttrType.Value := _value;
end;

function Reference.ReadXmlAttrId();
begin
    return {self.}XmlAttrId.Value;
end;

function Reference.WriteXmlAttrId(_value);
begin
    if ifnil({self.}XmlAttrId) then
    begin
        {self.}XmlAttrId := new OpenXmlAttribute("r", "id", nil);
        attributes_[length(attributes_)] := {self.}XmlAttrId;
    end
    {self.}XmlAttrId.Value := _value;
end;