func doExecute(_data)
  if(isdef(Select)) 
    println('QString ' + op_str + ' = QFileDialog::getOpenFileName(this, ', Title, ', ', StartDir, ', ', Filter, ');')
    println('if(!' + op_str + '.isEmpty()) {')
    block.inclvl()
      event(onExecute, op_str) 
    block.declvl() 
  else
    println('QStringList ' + op_str + ' = QFileDialog::getOpenFileNames(this, ', Title, ', ', StartDir, ', ', Filter, ');')
    println('if(!' + op_str + '.isEmpty()) {')
    block.inclvl()
      println('for(QStringList::iterator ' + i + ' = ' + op_str + '.begin(); ' + i + ' != ' + op_str + '.end(); ++' + i + ') {')
      block.inclvl()
        event(onExecute, '*' + i)
      block.declvl()
      println('}') 
    block.declvl() 
  end 

  println('}')
  if(linked(onCancel))
    println('else {')
    block.inclvl()
      event(onCancel) 
    block.declvl()  
    println('}')    
  end
end