.net9 OpenFileDialog error

[andyhebear]

using (var dialog = new OpenFileDialog())
{
    dialog.CheckFileExists = false;
    dialog.ValidateNames = false;
    dialog.Title = "选择文件夹";
    if (dialog.ShowDialog() == DialogResult.OK)
    {
        txtLocalPath.Text = Path.GetDirectoryName(dialog.FileName);
    }
}

exeture OpenFileDialog the process will die