EasyXLS Excel library can be used to export Excel files in C++. The integration varies depending on the project technique, if .NET Framework can be used or not.
If you are using a trial, generate a trial license file from EasyXLS trials page. The trial license is valid for 30-days.
If you own a license key, you may login to the account that purchased the license and generate the license file from: https://www.easyxls.com/my-orders
Setup the license file into your project using these guidelines.
Step 4: Run C++ code that adds comments to Excel file
Execute the following C++ code that exports an Excel file with comments on cells.
/* -----------------------------------------------------------
* Tutorial 07
*
* This code sample shows how to export an Excel file in C++
* having multiple sheets. The first sheet is filled with data
* and the cells are formatted and locked.
* The column header has comments.
* -------------------------------------------------------- */#include"EasyXLS.h"#include<conio.h>int main()
{
printf("Tutorial 07\n----------\n");
HRESULT hr;
// Initialize COM
hr = CoInitialize(0);
// Use the SUCCEEDED macro and get a pointer to the interfaceif (SUCCEEDED(hr))
{
// Create a pointer to the interface that exports Excel files
EasyXLS::IExcelDocumentPtr workbook;
hr = CoCreateInstance(__uuidof(EasyXLS::ExcelDocument),
NULL,
CLSCTX_ALL,
__uuidof(EasyXLS::IExcelDocument),
(void**) &workbook) ;
if (SUCCEEDED(hr)){
// Create two worksheets
workbook->easy_addWorksheet_2("First tab");
workbook->easy_addWorksheet_2("Second tab");
// Protect the first sheet
workbook->easy_getSheetAt(0)->setSheetProtected(true);
// Get the table of data for the first worksheet
EasyXLS::IExcelWorksheetPtr xlsFirstTab = (EasyXLS::IExcelWorksheetPtr)workbook->easy_getSheetAt(0);
EasyXLS::IExcelTablePtr xlsFirstTable = xlsFirstTab->easy_getExcelTable();
// Create the formatting style for the header
EasyXLS::IExcelStylePtr xlsStyleHeader;
hr = CoCreateInstance(__uuidof(EasyXLS::ExcelStyle),
NULL,
CLSCTX_ALL,
__uuidof(EasyXLS::IExcelStyle),
(void**) &xlsStyleHeader) ;
xlsStyleHeader->setFont("Verdana");
xlsStyleHeader->setFontSize(8);
xlsStyleHeader->setItalic(true);
xlsStyleHeader->setBold(true);
xlsStyleHeader->setForeground(COLOR_YELLOW);
xlsStyleHeader->setBackground(COLOR_BLACK);
xlsStyleHeader->setBorderColors (COLOR_GRAY, COLOR_GRAY, COLOR_GRAY, COLOR_GRAY);
xlsStyleHeader->setBorderStyles (BORDER_BORDER_MEDIUM, BORDER_BORDER_MEDIUM,
BORDER_BORDER_MEDIUM, BORDER_BORDER_MEDIUM);
xlsStyleHeader->setHorizontalAlignment(ALIGNMENT_ALIGNMENT_CENTER);
xlsStyleHeader->setVerticalAlignment(ALIGNMENT_ALIGNMENT_BOTTOM);
xlsStyleHeader->setWrap(true);
xlsStyleHeader->setDataType(DATATYPE_STRING);
// Add data in cells for report headerchar* cellValue = (char*)malloc(11*sizeof(char));
char* columnNumber = (char*)malloc(sizeof(char));
char* commentValue = (char*)malloc(20*sizeof(char));
for (int column=0; column<5; column++)
{
strcpy_s(cellValue, 8, "Column ");
_itoa_s(column+ 1, columnNumber, 2, 10);
strcat_s(cellValue, 10, columnNumber);
xlsFirstTable->easy_getCell(0,column)->setValue(cellValue);
xlsFirstTable->easy_getCell(0,column)->setStyle(xlsStyleHeader);
// Add comment for report header cells
strcpy_s(commentValue, 19, "This is column no ");
strcat_s(commentValue, 20, columnNumber);
xlsFirstTable->easy_getCell(0, column)->setComment_2(commentValue);
}
xlsFirstTable->easy_getRowAt(0)->setHeight(30);
// Create a formatting style for cells
EasyXLS::IExcelStylePtr xlsStyleData;
hr = CoCreateInstance(__uuidof(EasyXLS::ExcelStyle),
NULL,
CLSCTX_ALL,
__uuidof(EasyXLS::IExcelStyle),
(void**) &xlsStyleData) ;
xlsStyleData->setHorizontalAlignment(ALIGNMENT_ALIGNMENT_LEFT);
xlsStyleData->setForeground(COLOR_DARKGRAY);
xlsStyleData->setWrap(false);
// Protect cells
xlsStyleData->setLocked(true);
xlsStyleData->setDataType(DATATYPE_STRING);
// Add data in cells for report valueschar* rowNumber = (char*)malloc(sizeof(char));
for (int row=0; row<100; row++)
{
for (int column=0; column<5; column++)
{
strcpy_s(cellValue, 6, "Data ");
_itoa_s(column+ 1, columnNumber, 2, 10);
_itoa_s(row + 1, rowNumber, 4, 10);
strcat_s(cellValue, 10, rowNumber);
strcat_s(cellValue, 12, ", ");
strcat_s(cellValue, 13, columnNumber);
xlsFirstTable->easy_getCell(row+1,column)->setValue(cellValue);
xlsFirstTable->easy_getCell(row+1,column)->setStyle(xlsStyleData);
}
}
// Set column widths
xlsFirstTable->setColumnWidth_2(0, 70);
xlsFirstTable->setColumnWidth_2(1, 100);
xlsFirstTable->setColumnWidth_2(2, 70);
xlsFirstTable->setColumnWidth_2(3, 100);
xlsFirstTable->setColumnWidth_2(4, 70);
// Export Excel file
printf("Writing file C:\\Samples\\Tutorial07 - cell comment in Excel.xlsx.");
workbook->easy_WriteXLSXFile("C:\\Samples\\Tutorial07 - cell comment in Excel.xlsx");
// Confirm the export of Excel file
_bstr_t sError = workbook->easy_getError();
if (strcmp(sError, "") == 0){
printf("\nFile successfully created. Press Enter to Exit...");
}
else{
printf("\nError encountered: %s", (LPCSTR)sError);
}
// Dispose memory
workbook->Dispose();
}
else{
printf("Object is not available!");
}
}
else{
printf("COM can't be initialized!");
}
// Uninitialize COM
CoUninitialize();
_getch();
return 0;
}
C++ and .NET Framework This tutorial is valid for C++ applications that cannot use .NET Framework. It is recommended, for better performances, that if the C++ application already uses or can use .NET Framework to make use of this similar code sample.
Overloaded methods For methods with same name but different parameters, only the first method overload retains the original name. Subsequent overloads are uniquely renamed by appending to the method name '_2', '_3', etc (method, method_2, method_3), an integer that corresponds to the order of declaration that can be found in EasyXLS.h, a file that comes with EasyXLS installation.
EasyXLS in C++.NET projects using .NET Framework
If you opt for the .NET Framework version of EasyXLS, you need a C++.NET project and to include EasyXLS.dll into project.
To download the trial version of EasyXLS Excel Library, press the below button:
If you already own a license key, you may login and download EasyXLS from your account.
Install the downloaded EasyXLS installer for v8.6 or earlier.
Step 2: License file setup
Step required for EasyXLS v9.0 or later.
If you are using a trial, generate a trial license file from EasyXLS trials page. The trial license is valid for 30-days.
If you own a license key, you may login to the account that purchased the license and generate the license file from: https://www.easyxls.com/my-orders
Setup the license file into your project using these guidelines.
Step 3: Include EasyXLS library into project
EasyXLS.dll must be added to your project. EasyXLS.dll can be found: - Inside the downloaded archive at Step 1 for EasyXLS v9.0 or later - Under installation path for EasyXLS v8.6 or earlier, in "Dot NET version" folder.
Step 4: Run C++ code that adds comments to Excel file
Execute the following C++ code that exports an Excel file with comments on cells.
/*--------------------------------------------------------------
| Tutorial 07
|
| This code sample shows how to export an Excel file in C++.NET
| having multiple sheets. The first sheet is filled with data
| and the cells are formatted and locked.
| The column header has comments.
-------------------------------------------------------------*/using namespace System;
using namespace System::Drawing;
using namespace EasyXLS;
using namespace EasyXLS::Constants;
int main()
{
Console::WriteLine("Tutorial 07\n----------\n");
// Create an instance of the class that exports Excel files, having two sheets
ExcelDocument ^workbook = gcnew ExcelDocument(2);
// Set the sheet names
workbook->easy_getSheetAt(0)->setSheetName("First tab");
workbook->easy_getSheetAt(1)->setSheetName("Second tab");
// Protect the first sheet
workbook->easy_getSheetAt(0)->setSheetProtected(true);
// Get the table of data for the first worksheet
ExcelWorksheet ^xlsFirstTab = safe_cast<ExcelWorksheet^>(workbook->easy_getSheetAt(0));
ExcelTable ^xlsFirstTable = xlsFirstTab->easy_getExcelTable();
// Create the formatting style for the header
ExcelStyle ^xlsStyleHeader = gcnew ExcelStyle("Verdana", 8, true, true, Color::Yellow);
xlsStyleHeader->setBackground(Color::Black);
xlsStyleHeader->setBorderColors(Color::Gray, Color::Gray, Color::Gray, Color::Gray);
xlsStyleHeader->setBorderStyles(Border::BORDER_MEDIUM, Border::BORDER_MEDIUM,
Border::BORDER_MEDIUM, Border::BORDER_MEDIUM);
xlsStyleHeader->setHorizontalAlignment(Alignment::ALIGNMENT_CENTER);
xlsStyleHeader->setVerticalAlignment(Alignment::ALIGNMENT_BOTTOM);
xlsStyleHeader->setWrap(true);
xlsStyleHeader->setDataType(DataType::STRING);
// Add data in cells for report headerfor (int column=0; column<5; column++)
{
xlsFirstTable->easy_getCell(0,column)->setValue(String::Concat("Column ",(column + 1).ToString()));
xlsFirstTable->easy_getCell(0,column)->setStyle(xlsStyleHeader);
// Add comment for report header cells
xlsFirstTable->easy_getCell(0, column)->setComment(
String::Concat("This is column no ",(column + 1).ToString()));
}
xlsFirstTable->easy_getRowAt(0)->setHeight(30);
// Add data in cells for report valuesfor (int row=0; row<100; row++)
{
for (int column=0; column<5; column++)
{
xlsFirstTable->easy_getCell(row+1,column)->setValue(
String::Concat("Data ", (row + 1).ToString(), ", ", (column + 1).ToString()));
}
}
// Create a formatting style for cells
ExcelStyle ^xlsStyleData = gcnew ExcelStyle();
xlsStyleData->setHorizontalAlignment(Alignment::ALIGNMENT_LEFT);
xlsStyleData->setForeground(Color::DarkGray);
xlsStyleData->setWrap(false);
xlsStyleData->setDataType(DataType::STRING);
// Protect cells
xlsStyleData->setLocked(true);
xlsFirstTable->easy_setRangeStyle("A2:E101", xlsStyleData);
// Set column widths
xlsFirstTable->setColumnWidth(0, 70);
xlsFirstTable->setColumnWidth(1, 100);
xlsFirstTable->setColumnWidth(2, 70);
xlsFirstTable->setColumnWidth(3, 100);
xlsFirstTable->setColumnWidth(4, 70);
// Export Excel file
Console::WriteLine("Writing file C:\\Samples\\Tutorial07 - cell comment in Excel.xlsx.");
workbook->easy_WriteXLSXFile("C:\\Samples\\Tutorial07 - cell comment in Excel.xlsx");
// Confirm the 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;
}
