private void btnBrowser_Click(object sender, EventArgs e)
        {
            FolderBrowserDialog FolderChooser = new FolderBrowserDialog();

            if (FolderChooser.ShowDialog() == DialogResult.OK)
            {
                string path = FolderChooser.SelectedPath;
                if (!string.IsNullOrEmpty(path))
                {
                    if (!SystemFolder.isDirEmpty(path))
                    {
                        txtBrowser.Text      = path;
                        SystemFolder.DataDir = txtBrowser.Text;
                        SystemFolder.ClearTestInDir();
                        SystemFolder.ClearTestOutDir();
                        SystemFile.GetData(txtBrowser.Text);
                        FolderChooser.Dispose();
                    }
                    else
                    {
                        MessageBox.Show("the folder is empty ! no data found !");
                    }
                }
            }
        }