Hi, what I want to do is create a excel like editable table where I would store XML parsed data...


I created a class like this:

Qt Code: 
  1. DOMParser::DOMParser(QWidget *parent) : QTableWidget(parent) {
  2.  
  3.  
  4. }
  5.  
  6. bool DOMParser::read(QIODevice *device) {
  7.     /* column names */
  8.     QStringList labels;
  9.  
  10.     /* error variables for DOM document */
  11.     QString error_str;
  12.     int error_line;
  13.     int error_column;
  14.  
  15.     /* parse the DOM document == true if successful */
  16.     if(!dom_document.setContent(device, true, &error_str, &error_line, &error_column)) {
  17.         QMessageBox::information(window(),
  18.                                  tr("DOM Reader"),
  19.                                  tr("Parse error at line %1, column %2:\n%3")
  20.                                  .arg(error_line)
  21.                                  .arg(error_column)
  22.                                  .arg(error_str));
  23.         return false;
  24.     }
  25.  
  26.     /* root element */
  27.     QDomElement root = dom_document.documentElement();
  28.     qDebug() << "ROOT: " << root.tagName() << endl;
  29.  
  30.     QDomElement child = root.firstChildElement();
  31.  
  32.     while(!child.isNull()) {
  33.         parse_element(child);
  34.         child = child.nextSiblingElement();
  35.     }
  36.  
  37.     return true;
  38. }
  39.  
  40. void DOMParser::parse_element(const QDomElement &element, QTableWidgetItem *parent_item) {
  41.     qDebug() << "Element: " << element.tagName();
  42.  
  44.     QDomNode child = element.firstChild();
  45.     if(child.hasChildNodes()) {
  46.  
  47.         QString value = element.firstChildElement().text();
  48.         item->setText(value);
  49.         this->setItem(this->rowCount(), this->columnCount(), item);
  50.     }
  51.     while(!child.isNull()) {
  52.         parse_element(child.toElement(), item);
  53.         child = child.nextSiblingElement();
  54.     }
  55.  
  56. }
To copy to clipboard, switch view to plain text mode 

But the problem is that when I set centralWidget(new DOMParser) in another class, there's nothing displayed on the screen. What am I doing wrong?