private void btnsearchkapal_Click(object sender, EventArgs e)
        {
            SearchShips fsearchkpl = new SearchShips();

            cmethod.checksearchship = 1;
            fsearchkpl.ShowDialog();
        }
        private void btnsearch_Click_1(object sender, EventArgs e)
        {
            txbperusahaan.Text = null;
            txbnama.Text       = null;
            SearchShips fsearchships = new SearchShips();

            fsearchships.ShowDialog();
        }