private void addStaffBtn_Click(object sender, EventArgs e)
        {
            AddStaffForm asf = new AddStaffForm(this);

            this.Hide();
            asf.Show();
        }
 private void AddManagerForm_FormClosed(object sender, FormClosedEventArgs e)
 {
     ParentForm_.Show();
 }
 private void AddJournalistForm_FormClosed(object sender, FormClosedEventArgs e)
 {
     ParentForm_.Show();
 }