// Insert data into Database
public bool Insert(AppointmentClass a)
{
// Create a default return type and set its value to false
bool isSuccess = false;
// Step 1: Connect database
SqlConnection conn = new SqlConnection(myconnstr);
try
{
// Step 2: Create a SQL Query to insert data
string sql = "INSERT INTO Appointment (Patient_ID, Doctor_ID, CSR_ID, Service_ID, Date, Time) " +
"VALUES (@PatientId, @DoctorId, @CsrId, @ServiceId, @Date, @Time)";
// Create SQL command using sql and conn
SqlCommand cmd = new SqlCommand(sql, conn);
// Create parameters to add data
cmd.Parameters.AddWithValue("@PatientId", a.PatientId);
cmd.Parameters.AddWithValue("@DoctorId", a.DoctorId);
cmd.Parameters.AddWithValue("@CsrId", a.CsrId);
cmd.Parameters.AddWithValue("@ServiceId", a.ServiceId);
cmd.Parameters.AddWithValue("@Date", a.Date);
cmd.Parameters.AddWithValue("@Time", a.Time);
// Open connection here
conn.Open();
int rows = cmd.ExecuteNonQuery();
// If the query runs successfully then the value of rows will be
// greater than zero else its value will be 0
if (rows > 0)
{
isSuccess = true;
}
else
{
isSuccess = false;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
conn.Close();
}
return(isSuccess);
}
// Method to update data in database from our application
public bool Update(AppointmentClass a)
{
// Create a default return type and set its default value to false
bool isSuccess = false;
SqlConnection conn = new SqlConnection(myconnstr);
try
{
// SQL to update data in our database
string sql = "UPDATE Appointment SET Patient_ID=@PatientId, Doctor_ID=@DoctorId, CSR_ID=@CsrId, Service_ID=@ServiceId, Date=@Date, Time=@Time " +
"WHERE Appointment_ID=@AppointmentId";
// Create SQL command
SqlCommand cmd = new SqlCommand(sql, conn);
// Create parameters to add value
cmd.Parameters.AddWithValue("@PatientId", a.PatientId);
cmd.Parameters.AddWithValue("@DoctorId", a.DoctorId);
cmd.Parameters.AddWithValue("@CsrId", a.CsrId);
cmd.Parameters.AddWithValue("@ServiceId", a.ServiceId);
cmd.Parameters.AddWithValue("@Date", a.Date);
cmd.Parameters.AddWithValue("@Time", a.Time);
cmd.Parameters.AddWithValue("AppointmentId", a.AppointmentId);
// Open database connection
conn.Open();
int rows = cmd.ExecuteNonQuery();
// If the query runs successfully then the value of rows will be
// greater than zero else its value will be 0
if (rows > 0)
{
isSuccess = true;
}
else
{
isSuccess = false;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
conn.Close();
}
return(isSuccess);
}
// Method to delete data from database
public bool Delete(AppointmentClass a)
{
// Create a default return type and set its default value to false
bool isSuccess = false;
// Create SQL connection
SqlConnection conn = new SqlConnection(myconnstr);
try
{
// SQL to delete data
string sql = "DELETE FROM Appointment WHERE Appointment_ID=@AppointmentId";
// Create SQL command
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.Parameters.AddWithValue("@AppointmentId", a.AppointmentId);
// Open connection
conn.Open();
int rows = cmd.ExecuteNonQuery();
// If the query runs successfully then the value of rows will be
// greater than zero else its value will be 0
if (rows > 0)
{
isSuccess = true;
}
else
{
isSuccess = false;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
// Close connection
conn.Close();
}
return(isSuccess);
}