C++ Builder XE10 ChDir如何判断当前文件路径是否正确源码?

void __fastcall TForm1::Button1Click(TObject *Sender)
{

  Edit2->Text = GetCurrentDir();   //获取当前路径
  FileListBox1->Directory = GetCurrentDir();
  DirectoryListBox1->Directory = GetCurrentDir();
   try
  {
    System::ChDir(Edit2->Text);    //判断路径是否正确
  }
  catch (...)
  {
    MessageDlg("没有找到路径！", mtWarning, TMsgDlgButtons() << mbOK, 0);
  }
}