Inserimento di Oggetti OLE nel Foglio di Lavoro

Possibili Scenari di Utilizzo

Aspose.Cells ti consente di inserire un oggetto OLE all’interno del foglio di lavoro. Utilizzare il metodo Worksheet->GetOleObjects()->Add() a questo scopo. Sarà necessario un array di byte dell’immagine che verrà utilizzato per inserire l’oggetto OLE all’interno del foglio di lavoro e byte di dati dell’oggetto OLE che rappresenteranno il tuo oggetto effettivo da inserire all’interno del foglio di lavoro. 

Inserimento di oggetti OLE nel foglio di lavoro

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.

Codice di Esempio

// 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();