type BarChart = 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: BarChart);override;

public

    // normal property
    property BarDir read ReadXmlChildBarDir;
    property Grouping read ReadXmlChildGrouping;
    property VaryColors read ReadXmlChildVaryColors;
    property GapWidth read ReadXmlChildGapWidth;
    function ReadXmlChildBarDir();
    function ReadXmlChildGrouping();
    function ReadXmlChildVaryColors();
    function ReadXmlChildGapWidth();

    // multi property
    property Sers read ReadSers;
    property AxIds read ReadAxIds;
    function ReadSers(_index);
    function ReadAxIds(_index);
    function AddSer(): Ser;
    function AddAxId(): PureVal;
    function AppendSer(): Ser;
    function AppendAxId(): PureVal;

public
    // Children
    XmlChildBarDir: PureVal;
    XmlChildGrouping: PureVal;
    XmlChildVaryColors: PureVal;
    XmlChildGapWidth: PureVal;

end;

function BarChart.Create();overload;
begin
    {self.}Create(nil, "c", "barChart");
end;

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

function BarChart.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 BarChart.Init();override;
begin
    pre := {self.}Prefix ? {self.}Prefix + ":" : "";
    attributes_ := array();
    attributes_pf_ := array(
    );
    sorted_child_ := array(
        pre + "barDir": array(0, makeweakref(thisFunction(ReadXmlChildBarDir))),
        pre + "grouping": array(1, makeweakref(thisFunction(ReadXmlChildGrouping))),
        pre + "varyColors": array(2, makeweakref(thisFunction(ReadXmlChildVaryColors))),
        pre + "ser": array(3, makeweakref(thisFunction(AppendSer))),
        pre + "gapWidth": array(4, makeweakref(thisFunction(ReadXmlChildGapWidth))),
        pre + "axId": array(5, makeweakref(thisFunction(AppendAxId))),
    );
    container_ := new TSOfficeContainer(sorted_child_);
end;

function BarChart.Copy(_obj: BarChart);override;
begin
    tslassigning_backup := tslassigning;
    tslassigning := 1;
    class(OpenXmlElement).Copy(_obj);
    if not ifnil(_obj.XmlChildBarDir) then
        {self.}BarDir.Copy(_obj.XmlChildBarDir);
    if not ifnil(_obj.XmlChildGrouping) then
        {self.}Grouping.Copy(_obj.XmlChildGrouping);
    if not ifnil(_obj.XmlChildVaryColors) then
        {self.}VaryColors.Copy(_obj.XmlChildVaryColors);
    if not ifnil(_obj.XmlChildGapWidth) then
        {self.}GapWidth.Copy(_obj.XmlChildGapWidth);
    tslassigning := tslassigning_backup;
end;

function BarChart.ReadXmlChildBarDir();
begin
    if tslassigning and ifnil({self.}XmlChildBarDir) then
    begin
        {self.}XmlChildBarDir := new PureVal(self, {self.}Prefix, "barDir");
        container_.Set({self.}XmlChildBarDir);
    end
    return {self.}XmlChildBarDir;
end;

function BarChart.ReadXmlChildGrouping();
begin
    if tslassigning and ifnil({self.}XmlChildGrouping) then
    begin
        {self.}XmlChildGrouping := new PureVal(self, {self.}Prefix, "grouping");
        container_.Set({self.}XmlChildGrouping);
    end
    return {self.}XmlChildGrouping;
end;

function BarChart.ReadXmlChildVaryColors();
begin
    if tslassigning and ifnil({self.}XmlChildVaryColors) then
    begin
        {self.}XmlChildVaryColors := new PureVal(self, {self.}Prefix, "varyColors");
        container_.Set({self.}XmlChildVaryColors);
    end
    return {self.}XmlChildVaryColors;
end;

function BarChart.ReadXmlChildGapWidth();
begin
    if tslassigning and ifnil({self.}XmlChildGapWidth) then
    begin
        {self.}XmlChildGapWidth := new PureVal(self, {self.}Prefix, "gapWidth");
        container_.Set({self.}XmlChildGapWidth);
    end
    return {self.}XmlChildGapWidth;
end;

function BarChart.ReadSers(_index);
begin
    ind := ifnil(_index) ? -2 : _index;
    pre := {self.}Prefix ? {self.}Prefix + ":" : "";
    return container_.Get(pre + "ser", ind);
end;

function BarChart.ReadAxIds(_index);
begin
    ind := ifnil(_index) ? -2 : _index;
    pre := {self.}Prefix ? {self.}Prefix + ":" : "";
    return container_.Get(pre + "axId", ind);
end;

function BarChart.AddSer(): Ser;
begin
    obj := new Ser(self, {self.}Prefix, "ser");
    container_.Insert(obj);
    return obj;
end;

function BarChart.AddAxId(): PureVal;
begin
    obj := new PureVal(self, {self.}Prefix, "axId");
    container_.Insert(obj);
    return obj;
end;

function BarChart.AppendSer(): Ser;
begin
    obj := new Ser(self, {self.}Prefix, "ser");
    container_.Append(obj);
    return obj;
end;

function BarChart.AppendAxId(): PureVal;
begin
    obj := new PureVal(self, {self.}Prefix, "axId");
    container_.Append(obj);
    return obj;
end;