Insertion d objets OLE dans la feuille de calcul

Scénarios d’utilisation possibles

Aspose.Cells vous permet d’insérer un objet OLE dans la feuille de calcul. Veuillez utiliser la méthode Worksheet->GetOleObjects()->Add() à cet effet. Vous aurez besoin d’un tableau d’octets d’image qui sera utilisé pour insérer l’objet OLE dans la feuille de calcul et des octets de données d’objet OLE qui seront votre véritable objet à insérer dans la feuille de calcul. 

Insertion d’objets OLE dans la feuille de calcul

The following sample code creates the workbook object and inserts the Ole object inside the first worksheet and saves it as output Excel file. Please see the Logo Aspose used as image bytes and input Excel file used as Ole object data inside the code for reference.

Code d’exemple

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-C
Vector<uint8_t> GetDataFromFile(const char* file)
{
// open a file
std::ifstream fileStream(file, std::ios::binary);
if (!fileStream.is_open()) {
std::cerr << "Failed to open the file: " << file << std::endl;
return Vector<uint8_t>(0);
}
// Get file size
fileStream.seekg(0, std::ios::end);
std::streampos fileSize = fileStream.tellg();
fileStream.seekg(0, std::ios::beg);
// Read file contents into uint8_t array
uint8_t* buffer = new uint8_t[fileSize];
fileStream.read(reinterpret_cast<char*>(buffer), fileSize);
fileStream.close();
Vector<uint8_t>data(buffer, fileSize);
delete[] buffer;
return data;
}
......
Aspose::Cells::Startup();
// Source directory path.
U16String srcDir(u"..\\Data\\01_SourceDirectory\\");
// Output directory path.
U16String outDir(u"..\\Data\\02_OutputDirectory\\");
// Path of output Excel file.
U16String outputInsertingOLEObjectsIntoWorksheet = outDir + u"outputInsertingOLEObjectsIntoWorksheet.xlsx";
// Instantiate a new workbook.
Workbook workbook;
// Get the first worksheet.
Worksheet worksheet = workbook.GetWorksheets().Get(0);
// Read Image for Ole Object into array of bytes.
U16String imagePath = srcDir + u"AsposeLogo.png";
Vector<uint8_t>imageData = GetDataFromFile(imagePath.ToUtf8().c_str());
// Read Ole Object into array of bytes.
U16String oleObjectPath = srcDir + u"inputInsertOleObject.xlsx";
Vector<uint8_t> oleObjectData = GetDataFromFile(oleObjectPath.ToUtf8().c_str());
// Add an Ole object into the worksheet with the image.
int idx = worksheet.GetOleObjects().Add(2, 2, 200, 220, imageData);
// Set the Ole object data.
OleObject oleObj = worksheet.GetOleObjects().Get(idx);
oleObj.SetObjectData(oleObjectData);
// Save the workbook.
workbook.Save(outputInsertingOLEObjectsIntoWorksheet);
Aspose::Cells::Cleanup();