type Tab = 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: Tab);override;

public

    // attributes property
    property Val read ReadXmlAttrVal write WriteXmlAttrVal;
    property Leader read ReadXmlAttrLeader write WriteXmlAttrLeader;
    property Pos read ReadXmlAttrPos write WriteXmlAttrPos;
    function ReadXmlAttrVal();
    function WriteXmlAttrVal(_value);
    function ReadXmlAttrLeader();
    function WriteXmlAttrLeader(_value);
    function ReadXmlAttrPos();
    function WriteXmlAttrPos(_value);

public
    // Attributes
    XmlAttrVal: OpenXmlAttribute;
    XmlAttrLeader: OpenXmlAttribute;
    XmlAttrPos: OpenXmlAttribute;


end;

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

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

function Tab.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 Tab.Init();override;
begin
    pre := {self.}Prefix ? {self.}Prefix + ":" : "";
    attributes_ := array();
    attributes_pf_ := array(
        "val": makeweakref(thisFunction(WriteXmlAttrVal)),
        pre + "leader": makeweakref(thisFunction(WriteXmlAttrLeader)),
        pre + "pos": makeweakref(thisFunction(WriteXmlAttrPos)),
    );
    sorted_child_ := array(
    );
    container_ := new TSOfficeContainer(sorted_child_);
end;

function Tab.Copy(_obj: Tab);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.Leader) then
        {self.}Leader := _obj.Leader;
    if not ifnil(_obj.Pos) then
        {self.}Pos := _obj.Pos;
    tslassigning := tslassigning_backup;
end;

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

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

function Tab.ReadXmlAttrLeader();
begin
    return {self.}XmlAttrLeader.Value;
end;

function Tab.WriteXmlAttrLeader(_value);
begin
    if ifnil({self.}XmlAttrLeader) then
    begin
        {self.}XmlAttrLeader := new OpenXmlAttribute({self.}Prefix, "leader", nil);
        attributes_[length(attributes_)] := {self.}XmlAttrLeader;
    end
    {self.}XmlAttrLeader.Value := _value;
end;

function Tab.ReadXmlAttrPos();
begin
    return {self.}XmlAttrPos.Value;
end;

function Tab.WriteXmlAttrPos(_value);
begin
    if ifnil({self.}XmlAttrPos) then
    begin
        {self.}XmlAttrPos := new OpenXmlAttribute({self.}Prefix, "pos", nil);
        attributes_[length(attributes_)] := {self.}XmlAttrPos;
    end
    {self.}XmlAttrPos.Value := _value;
end;