querySubObject(“Cells(int,int)“, j,i)-＞property(“Value“)读不到数据问题

在使用qt读取Excel文件内容的时候，使用下列方式：

worksheet->querySubObject("Cells(int,int)", j,i)->property("Value").toString();

不会报错，但读取不到数据。多次尝试发现应该将property改为dynamicCall

下面是用qt读取excel文件内容的实例。

读取方式为按列读取，以QVector<QVector<QString>>形式存储数据。

void MainWindow::getExcelContent(QVector<QVector<QString>> &result, QStringList filePathes)
{QAxObject *excel = NULL;QAxObject *workbooks = NULL;QAxObject *workbook = NULL;foreach (const QString &filePath, filePathes) {CoInitializeEx(NULL, COINIT_MULTITHREADED);excel = new QAxObject("Excel.Application");QAxObject *worksheet = workbook->querySubObject("WorkSheets(int)", 1);//读取第一个表QAxObject *usedRange = worksheet->querySubObject("UsedRange");//有数据的矩形区域QAxObject * rows = usedRange->querySubObject("Rows");QAxObject * columns = usedRange->querySubObject("Columns");int Rows = rows->property("Count").toInt();int Cols = columns->property("Count").toInt();//按照列方式读取数据for(int i=1;i<=Cols; ++i){QVector<QString> vecDataRow;for(int j=1;j<=Rows;++j){QString txt = worksheet->querySubObject("Cells(int,int)", j,i)->dynamicCall("Value").toString(); //获取单元格内容vecDataRow.append(txt);}result.push_back(vecDataRow);}workbook->dynamicCall("Close()");excel->dynamicCall("Quit()");if(excel){delete excel;excel = NULL;}}
}

下面是打开文件方式，其中有单选格式方式打开文件和多选格式选择打开文件。 

QString filePath = QFileDialog::getOpenFileName(this, QStringLiteral("选择Excel文件"),"",QStringLiteral("Excel file(*.xls *.xlsx)"));if(filePath.isEmpty())return;

filePathes = QFileDialog::getOpenFileNames(this, tr("Open File"),"D:/",tr("Excel files(*.xls *.xlsx);;CSV files (*.csv)"));