type Textbox = 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: Textbox);override;

public

    // normal property
    property TxbxContent read ReadXmlChildTxbxContent;
    function ReadXmlChildTxbxContent();

public
    // Children
    XmlChildTxbxContent: TxbxContent;

end;

function Textbox.Create();overload;
begin
    {self.}Create(nil, "v", "textbox");
end;

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

function Textbox.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 Textbox.Init();override;
begin
    pre := {self.}Prefix ? {self.}Prefix + ":" : "";
    attributes_ := array();
    attributes_pf_ := array(
    );
    sorted_child_ := array(
        "w:txbxContent": array(0, makeweakref(thisFunction(ReadXmlChildTxbxContent))),
    );
    container_ := new TSOfficeContainer(sorted_child_);
end;

function Textbox.Copy(_obj: Textbox);override;
begin
    tslassigning_backup := tslassigning;
    tslassigning := 1;
    class(OpenXmlElement).Copy(_obj);
    if not ifnil(_obj.XmlChildTxbxContent) then
        {self.}TxbxContent.Copy(_obj.XmlChildTxbxContent);
    tslassigning := tslassigning_backup;
end;

function Textbox.ReadXmlChildTxbxContent();
begin
    if tslassigning and ifnil({self.}XmlChildTxbxContent) then
    begin
        {self.}XmlChildTxbxContent := new TxbxContent(self, "w", "txbxContent");
        container_.Set({self.}XmlChildTxbxContent);
    end
    return {self.}XmlChildTxbxContent;
end;