How to apply auto-filter in C++.NET

/*-----------------------------------------------------------
 | Tutorial 20
 |
 | This tutorial shows how to create an Excel file in C++.NET
 | and apply an auto-filter to a range of cells.
 ------------------------------------------------------------*/

#include <conio.h>
#include <stdio.h>

using namespace System;
using namespace EasyXLS;
using namespace EasyXLS::Constants;

int main()
{
    Console::WriteLine("Tutorial 20\n----------\n");
    
    // Create an instance of the class that exports Excel files having one sheet
    ExcelDocument ^workbook = gcnew ExcelDocument(1);

    // Get the table of data for the worksheet
    ExcelWorksheet ^xlsTab = safe_cast<ExcelWorksheet^>(workbook->easy_getSheet("Sheet1"));
    ExcelTable ^xlsTable = xlsTab->easy_getExcelTable();

    // Add data in cells for report header
    for (int column=0; column<5; column++)
    {
        xlsTable->easy_getCell(0,column)->setValue(String::Concat("Column ",(column + 1).ToString())); 
        xlsTable->easy_getCell(0,column)->setDataType(DataType::STRING);
    }

    // Add data in cells for report values
    for (int row=0; row<100; row++)
    {
        for (int column=0; column<5; column++)
        {
            xlsTable->easy_getCell(row+1,column)->setValue(
                String::Concat("Data ", (row + 1).ToString(), ", ", (column + 1).ToString()));
            xlsTable->easy_getCell(row+1,column)->setDataType(DataType::STRING);
        }
    }

    // Apply auto-filter on cell range A1:E1
    ExcelFilter ^xlsFilter = xlsTab->easy_getFilter();
    xlsFilter->setAutoFilter("A1:E1");

    // Export Excel file
    Console::WriteLine("Writing file C:\\Samples\\Tutorial20 - autofilter in Excel sheet.xlsx.");
    workbook->easy_WriteXLSXFile("C:\\Samples\\Tutorial20 - autofilter in Excel sheet.xlsx");

    // Confirm export of Excel file
    String ^sError = workbook->easy_getError();
    if (sError->Equals(""))
    Console::Write("\nFile successfully created. Press Enter to Exit...");
    else
    Console::Write(String::Concat("\nError encountered: ", sError, "\nPress Enter to Exit..."));

    // Dispose memory
    delete workbook;
    
    Console::ReadLine();
    
    return 0;
}