private void R3CompleteB_Click(object sender, System.EventArgs e)
 {
     if (DYRB.Checked == true)
     {
         Diabetes = true;
     }
     else if (DNRB.Checked == true)
     {
         Diabetes = false;
     }
     if (BloodPressureYRB.Checked == true)
     {
         BP = true;
     }
     if (BloodPressureNRB.Checked == true)
     {
         BP = false;
     }
     if (SC.Step4(BloodGroupCB.SelectedText, Diabetes, DiabetesYTB.Text, BP, BloodPressureYTB.Text))
     {
         MessageBox.Show("JUIHBI");
         Registration1.Visible = false;
         Registration3.Visible = false;
         Registration2.Visible = false;
         Registration4.Visible = true;
     }
 }