private void btnMenuMerge_Click(object sender, EventArgs e)
{
this.Hide();
using (frmMerge frm = new frmMerge(mFiles))
frm.ShowDialog();
this.Show();
}
private void btnMenuMerge_Click( object sender, EventArgs e ) {
this.Hide();
using( frmMerge frm = new frmMerge( mFiles ) )
frm.ShowDialog();
this.Show();
}