How to get last SysExcelWorksheet object row or column[X++]

findLastColumn

int findLastColumn(SysExcelWorksheet _sysExcelWorksheet, boolean _data = true)
{    
    #Excel
    #define.Star('*')
    SysExcelRange   sysExcelRange;
    int             ret;
;   
    sysExcelRange = _data ?
                    _sysExcelWorksheet.cells().range(#ExcelDataRange) :
                    _sysExcelWorksheet.cells().range(#ExcelTotalRange);
    try
    {
        sysExcelRange = sysExcelRange.find(#Star, null, #xlFormulas, #xlWhole, #xlByColumns, #xlPrevious);
    }
    catch (Exception::Error)
    {
        error("@SYS59926");        
    }
    if (sysExcelRange)
        ret = sysExcelRange.column();

    return ret;
}

findLastRow

int findLastRow(SysExcelWorksheet _sysExcelWorksheet)
{
    #Excel    
    #define.Star('*')
    #define.ExcelDataRange("A1:IV65536")
    SysExcelRange   sysExcelRange = _sysExcelWorksheet.cells().range(#ExcelDataRange);
    int             ret;
;   
    try
    {
        sysExcelRange = sysExcelRange.find(#Star, null, #xlFormulas, #xlWhole, #xlByRows, #xlPrevious);
    }
    catch (Exception::Error)
    {
        error("@SYS59926");
    }
    if (sysExcelRange)
        ret = sysExcelRange.row();

    return ret;
}

 come on, look at an example

void THK_7519_readExcelFile()
{ 
    #AviFiles
    #WinAPI
    SysExcelApplication  application    = SysExcelApplication::construct();
    SysExcelWorkbooks    workbooks      = application.workbooks();
    SysExcelWorkbook     workbook;
    SysExcelWorksheets   worksheets;
    SysExcelWorksheet    worksheet;
    SysExcelCells        cells;
    
    COMVariantType       type;
    SysOperationProgress progressBar;
    Test                 newTest;    
        
    FileNameFilter       filter  = ['All files','*.xls;*.xlsx'];    
    str                  code, address, precent;
    Filename             fileName;
    int                  records,row = 1;   
;
    filename = Winapi::getOpenFileName(0, filter, WinAPI::getFolderPath(#CSIDL_Personal), "Select file for upload", '','');
    if (!winAPI::fileExists(filename,false))
        return;
    if (!Box::yesNo(strfmt("Upload this file %1", filename), dialogButton::No))
        return;

    try
    {
        workbooks.open(fileName);
        workbook    = workbooks.item(1);
        worksheets  = workbook.worksheets();
        worksheet   = worksheets.itemFromNum(1);
        cells       = worksheet.cells();
        records     = this.findLastRow(worksheet);// 2190;
        progressBar = SysOperationProgress::newGeneral(#AviUpdate, "import data", records);
        progressBar.setTextLength(80);
        setPrefix(filename);

        ttsBegin;
        delete_from newTest;
        do
        {
            row++;
            setPrefix(strFmt("Row %1", row));
            Code              = strLRTrim(cells.item(row, 1).value().bStr());
            address           = strLRTrim(cells.item(row, 2).value().bStr());

            newTest.clear();
            newTest.initValue();
            newTest.AccountNum      = Code;
            newTest.Name01          = address;
            newTest.LineNum         = row;
            if (!newTest.validateWrite())
                throw Exception::Error;
            newTest.insert();
            progressBar.incCount(1);
            progressBar.setText(strfmt("Line: %1 - %2[%3 %4]", newTest.LineNum, newTest.AccountNum, newTest.Name01, newTest.Name02));
            progressBar.setCaption(strFmt("Process %1%", row / records * 100));
            progressBar.update(true);
            type = cells.item(row + 1, 1).value().variantType();
        }
        while (type != COMVariantType::VT_EMPTY);

        ttsCommit;
    }
    catch (Exception::Error)
    {
        application.quit();
    }

    application.quit();
    progressBar.finalize();
    progressBar = null;
    Test_ds.executeQuery();
    info( strfmt("total read %1 records", int2str(row)) );
}