private void btnGecmis_Click(object sender, EventArgs e)
 {
     if (h_tc != null)
     {
         MuayeneGecmis mg = new MuayeneGecmis(h_tc);
         mg.Show();
     }
     else
     {
         MetroFramework.MetroMessageBox.Show(this, "Hasta seçilmedi!", "Uyarı", MessageBoxButtons.OK, MessageBoxIcon.Error);
     }
 }
        private void dataGridView1_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
        {
            string tc = dataGridView1.CurrentRow.Cells[0].Value.ToString();

            if (tc != "")
            {
                MuayeneGecmis mg = new MuayeneGecmis(tc);
                mg.ShowDialog();
            }
            else
            {
                MetroFramework.MetroMessageBox.Show(this, "Hasta seçilmedi!", "Uyarı", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }