type Lang = 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: Lang);override;

public

    // attributes property
    property Val read ReadXmlAttrVal write WriteXmlAttrVal;
    property EastAsia read ReadXmlAttrEastAsia write WriteXmlAttrEastAsia;
    property Bidi read ReadXmlAttrBidi write WriteXmlAttrBidi;
    function ReadXmlAttrVal();
    function WriteXmlAttrVal(_value);
    function ReadXmlAttrEastAsia();
    function WriteXmlAttrEastAsia(_value);
    function ReadXmlAttrBidi();
    function WriteXmlAttrBidi(_value);

public
    // Attributes
    XmlAttrVal: OpenXmlAttribute;
    XmlAttrEastAsia: OpenXmlAttribute;
    XmlAttrBidi: OpenXmlAttribute;


end;

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

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

function Lang.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 Lang.Init();override;
begin
    pre := {self.}Prefix ? {self.}Prefix + ":" : "";
    attributes_ := array();
    attributes_pf_ := array(
        pre + "val": makeweakref(thisFunction(WriteXmlAttrVal)),
        pre + "eastAsia": makeweakref(thisFunction(WriteXmlAttrEastAsia)),
        pre + "bidi": makeweakref(thisFunction(WriteXmlAttrBidi)),
    );
    sorted_child_ := array(
    );
    container_ := new TSOfficeContainer(sorted_child_);
end;

function Lang.Copy(_obj: Lang);override;
begin
    tslassigning_backup := tslassigning;
    tslassigning := 1;
    class(OpenXmlElement).Copy(_obj);
    if not ifnil(_obj.Val) then
        {self.}Val := _obj.Val;
    if not ifnil(_obj.EastAsia) then
        {self.}EastAsia := _obj.EastAsia;
    if not ifnil(_obj.Bidi) then
        {self.}Bidi := _obj.Bidi;
    tslassigning := tslassigning_backup;
end;

function Lang.ReadXmlAttrVal();
begin
    return {self.}XmlAttrVal.Value;
end;

function Lang.WriteXmlAttrVal(_value);
begin
    if ifnil({self.}XmlAttrVal) then
    begin
        {self.}XmlAttrVal := new OpenXmlAttribute({self.}Prefix, "val", nil);
        attributes_[length(attributes_)] := {self.}XmlAttrVal;
    end
    {self.}XmlAttrVal.Value := _value;
end;

function Lang.ReadXmlAttrEastAsia();
begin
    return {self.}XmlAttrEastAsia.Value;
end;

function Lang.WriteXmlAttrEastAsia(_value);
begin
    if ifnil({self.}XmlAttrEastAsia) then
    begin
        {self.}XmlAttrEastAsia := new OpenXmlAttribute({self.}Prefix, "eastAsia", nil);
        attributes_[length(attributes_)] := {self.}XmlAttrEastAsia;
    end
    {self.}XmlAttrEastAsia.Value := _value;
end;

function Lang.ReadXmlAttrBidi();
begin
    return {self.}XmlAttrBidi.Value;
end;

function Lang.WriteXmlAttrBidi(_value);
begin
    if ifnil({self.}XmlAttrBidi) then
    begin
        {self.}XmlAttrBidi := new OpenXmlAttribute({self.}Prefix, "bidi", nil);
        attributes_[length(attributes_)] := {self.}XmlAttrBidi;
    end
    {self.}XmlAttrBidi.Value := _value;
end;