type XRef = 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: XRef);override;

public

    // attributes property
    property Idx read ReadXmlAttrIdx write WriteXmlAttrIdx;
    function ReadXmlAttrIdx();
    function WriteXmlAttrIdx(_value);

    // normal property
    property SchemeClr read ReadXmlChildSchemeClr;
    function ReadXmlChildSchemeClr();

public
    // Attributes
    XmlAttrIdx: OpenXmlAttribute;

    // Children
    XmlChildSchemeClr: SchemeClr;

end;

function XRef.Create();overload;
begin
    {self.}Create(nil, "a", "lnRef");
end;

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

function XRef.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 XRef.Init();override;
begin
    pre := {self.}Prefix ? {self.}Prefix + ":" : "";
    attributes_ := array();
    attributes_pf_ := array(
        "idx": makeweakref(thisFunction(WriteXmlAttrIdx)),
    );
    sorted_child_ := array(
        "a:schemeClr": array(0, makeweakref(thisFunction(ReadXmlChildSchemeClr))),
    );
    container_ := new TSOfficeContainer(sorted_child_);
end;

function XRef.Copy(_obj: XRef);override;
begin
    tslassigning_backup := tslassigning;
    tslassigning := 1;
    class(OpenXmlElement).Copy(_obj);
    if not ifnil(_obj.Idx) then
        {self.}Idx := _obj.Idx;
    if not ifnil(_obj.XmlChildSchemeClr) then
        {self.}SchemeClr.Copy(_obj.XmlChildSchemeClr);
    tslassigning := tslassigning_backup;
end;

function XRef.ReadXmlAttrIdx();
begin
    return {self.}XmlAttrIdx.Value;
end;

function XRef.WriteXmlAttrIdx(_value);
begin
    if ifnil({self.}XmlAttrIdx) then
    begin
        {self.}XmlAttrIdx := new OpenXmlAttribute("", "idx", nil);
        attributes_[length(attributes_)] := {self.}XmlAttrIdx;
    end
    {self.}XmlAttrIdx.Value := _value;
end;

function XRef.ReadXmlChildSchemeClr();
begin
    if tslassigning and ifnil({self.}XmlChildSchemeClr) then
    begin
        {self.}XmlChildSchemeClr := new SchemeClr(self, "a", "schemeClr");
        container_.Set({self.}XmlChildSchemeClr);
    end
    return {self.}XmlChildSchemeClr;
end;