private void BindSymptom()
    {
        DataTable dtSymptoms = new MasterBAL().GetSymptom();

        rlbSymptomList.DataSource = dtSymptoms;
        rlbSymptomList.DataTextField = "Symptom";
        rlbSymptomList.DataValueField = "SymptomId";
        rlbSymptomList.DataBind();

        rcbSymptomList.DataSource = dtSymptoms;
        rcbSymptomList.DataTextField = "Symptom";
        rcbSymptomList.DataValueField = "SymptomId";
        rcbSymptomList.DataBind();

        rcbSymptomList.Items.Insert(0, new RadComboBoxItem("Select Symptom", "0"));
        rcbSymptomList.SelectedIndex = 0;

        SortSymptom();
    }
    private void BindDiagnosis()
    {
        DataTable dtDiagnosis = new MasterBAL().GetDiagnosis();

        rlbDiagnosisList.DataSource = dtDiagnosis;
        rlbDiagnosisList.DataTextField = "Diagnosis";
        rlbDiagnosisList.DataValueField = "DiagnosisId";
        rlbDiagnosisList.DataBind();

        rcbDiagnosisList.DataSource = dtDiagnosis;
        rcbDiagnosisList.DataTextField = "Diagnosis";
        rcbDiagnosisList.DataValueField = "DiagnosisId";
        rcbDiagnosisList.DataBind();

        rcbDiagnosisList.Items.Insert(0, new RadComboBoxItem("Select Diagnosis", "0"));
        rcbDiagnosisList.SelectedIndex = 0;

        SortDiagnosis();
    }