private void btnChooseSrcFolder_Click(object sender, EventArgs e)
{
FolderBrowserDialog dialog = new FolderBrowserDialog();
if (dialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
srcDir.Text = dialog.SelectedPath;
if(!srcDir.Text.EndsWith("\\"))
srcDir.Text = dialog.SelectedPath + "\\";
}
}