func doExecute(_data)
  if(isdef(Select)) 
    println('wxFileDialog ', dlg, '(this, ', Title, ', ', StartDir, ', "", ', Filter, ', wxFD_OPEN);')
    println('if (', dlg, '.ShowModal() == wxID_OK)')
    println('{')
    block.inclvl()
      println('wxString ', op_str, ' = ', dlg, '.GetPath();')
      event(onExecute, op_str) 
    block.declvl() 
  else
    println('wxFileDialog ', dlg, '(this, ', Title, ', ', StartDir, ', "", ', Filter, ', wxFD_OPEN | wxFD_MULTIPLE);')
    println('if (', dlg, '.ShowModal() == wxID_OK)')
    println('{')
    block.inclvl()
      println('wxArrayString ', arr, ';')
      println(dlg, '.GetPaths(', arr, ');')
      println('for (size_t ', i, ' = 0; i < ', arr, '.Count(); i++)')
      block.inclvl()
        event(onExecute, 'arr[' + i + ']')
      block.declvl()
    block.declvl()     
  end
  
  println('}')
  if(linked(onCancel))
    println('else')
    println('{')
    block.inclvl()
      event(onCancel) 
    block.declvl()  
    println('}')    
  end
end