public List<Disease> GetAllDiseases()
{
List<Disease> diseaseList = new List<Disease>();
string query = "SELECT * FROM tbl_disease";
ASqlCommand = new SqlCommand(query, ASqlConnection);
ASqlConnection.Open();
ASqlDataReader = ASqlCommand.ExecuteReader();
Disease aDisease;
while (ASqlDataReader.Read())
{
aDisease = new Disease();
aDisease.Id = (int)ASqlDataReader["id"];
aDisease.Name = ASqlDataReader["name"].ToString();
aDisease.Description = ASqlDataReader["description"].ToString();
aDisease.TreatmentProcedure = ASqlDataReader["treatment_procedure"].ToString();
aDisease.PreferredDrug = ASqlDataReader["preferred_drug"].ToString();
diseaseList.Add(aDisease);
}
ASqlDataReader.Close();
ASqlCommand.Dispose();
ASqlConnection.Close();
return diseaseList;
}
public int Save(Disease aDisease)
{
string query = "INSERT INTO tbl_disease VALUES ('" + aDisease.Name + "','" + aDisease.Description + "','" +
aDisease.TreatmentProcedure + "','" + aDisease.PreferredDrug + "')";
ASqlConnection.Open();
ASqlCommand = new SqlCommand(query, ASqlConnection);
int rowAffected = ASqlCommand.ExecuteNonQuery();
ASqlConnection.Close();
return rowAffected;
}
public int Save(Disease aDisease)
{
if (aDiseaseDbGateway.Find(aDisease.Name) == null)
{
return aDiseaseDbGateway.Save(aDisease);
}
else
{
return 0;
}
}
protected void saveButton_Click(object sender, EventArgs e)
{
Disease aDisease = new Disease();
aDisease.Name = nameTextBox.Text;
aDisease.Description = descriptionTextBox.Text;
aDisease.TreatmentProcedure = treatementProcedureTextBox.Text;
aDisease.PreferredDrug = preferredDrugTextBox.Text;
int rowAffected = aDiseaseManager.Save(aDisease);
if (rowAffected > 0)
{
msgLabel.Text = "Disease Saved...";
}
else
{
msgLabel.Text = "Error in saving or duplicate name of disease...";
}
}
public Disease Find(string name)
{
string query = "SELECT * FROM tbl_disease WHERE name= '" + name + "' ";
ASqlConnection.Open();
ASqlCommand = new SqlCommand(query, ASqlConnection);
ASqlDataReader = ASqlCommand.ExecuteReader();
if (ASqlDataReader.HasRows)
{
ASqlDataReader.Read();
Disease aDisease = new Disease();
aDisease.Id = (int)ASqlDataReader["id"];
aDisease.Name = ASqlDataReader["name"].ToString();
ASqlDataReader.Close();
ASqlConnection.Close();
return aDisease;
}
else
{
ASqlDataReader.Close();
ASqlConnection.Close();
return null;
}
}
