type Cols = 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: Cols);override;

public

    // attributes property
    property Num read ReadXmlAttrNum write WriteXmlAttrNum;
    property Space read ReadXmlAttrSpace write WriteXmlAttrSpace;
    property EqualWidth read ReadXmlAttrEqualWidth write WriteXmlAttrEqualWidth;
    function ReadXmlAttrNum();
    function WriteXmlAttrNum(_value);
    function ReadXmlAttrSpace();
    function WriteXmlAttrSpace(_value);
    function ReadXmlAttrEqualWidth();
    function WriteXmlAttrEqualWidth(_value);

    // multi property
    property Cols read ReadCols;
    function ReadCols(_index);
    function AddCol(): Col;
    function AppendCol(): Col;

public
    // Attributes
    XmlAttrNum: OpenXmlAttribute;
    XmlAttrSpace: OpenXmlAttribute;
    XmlAttrEqualWidth: OpenXmlAttribute;

    // Children

end;

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

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

function Cols.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 Cols.Init();override;
begin
    pre := {self.}Prefix ? {self.}Prefix + ":" : "";
    attributes_ := array();
    attributes_pf_ := array(
        pre + "num": makeweakref(thisFunction(WriteXmlAttrNum)),
        pre + "space": makeweakref(thisFunction(WriteXmlAttrSpace)),
        pre + "equalWidth": makeweakref(thisFunction(WriteXmlAttrEqualWidth)),
    );
    sorted_child_ := array(
        pre + "col": array(0, makeweakref(thisFunction(AppendCol))),
    );
    container_ := new TSOfficeContainer(sorted_child_);
end;

function Cols.Copy(_obj: Cols);override;
begin
    tslassigning_backup := tslassigning;
    tslassigning := 1;
    class(OpenXmlElement).Copy(_obj);
    if not ifnil(_obj.Num) then
        {self.}Num := _obj.Num;
    if not ifnil(_obj.Space) then
        {self.}Space := _obj.Space;
    if not ifnil(_obj.EqualWidth) then
        {self.}EqualWidth := _obj.EqualWidth;
    tslassigning := tslassigning_backup;
end;

function Cols.ReadXmlAttrNum();
begin
    return {self.}XmlAttrNum.Value;
end;

function Cols.WriteXmlAttrNum(_value);
begin
    if ifnil({self.}XmlAttrNum) then
    begin
        {self.}XmlAttrNum := new OpenXmlAttribute({self.}Prefix, "num", nil);
        attributes_[length(attributes_)] := {self.}XmlAttrNum;
    end
    {self.}XmlAttrNum.Value := _value;
end;

function Cols.ReadXmlAttrSpace();
begin
    return {self.}XmlAttrSpace.Value;
end;

function Cols.WriteXmlAttrSpace(_value);
begin
    if ifnil({self.}XmlAttrSpace) then
    begin
        {self.}XmlAttrSpace := new OpenXmlAttribute({self.}Prefix, "space", nil);
        attributes_[length(attributes_)] := {self.}XmlAttrSpace;
    end
    {self.}XmlAttrSpace.Value := _value;
end;

function Cols.ReadXmlAttrEqualWidth();
begin
    return {self.}XmlAttrEqualWidth.Value;
end;

function Cols.WriteXmlAttrEqualWidth(_value);
begin
    if ifnil({self.}XmlAttrEqualWidth) then
    begin
        {self.}XmlAttrEqualWidth := new OpenXmlAttribute({self.}Prefix, "equalWidth", nil);
        attributes_[length(attributes_)] := {self.}XmlAttrEqualWidth;
    end
    {self.}XmlAttrEqualWidth.Value := _value;
end;

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

function Cols.AddCol(): Col;
begin
    obj := new Col(self, {self.}Prefix, "col");
    container_.Insert(obj);
    return obj;
end;

function Cols.AppendCol(): Col;
begin
    obj := new Col(self, {self.}Prefix, "col");
    container_.Append(obj);
    return obj;
end;