//update
public bool Update(subjectClass s)
{
bool isSuccess = false;
SqlConnection conn = new SqlConnection(myconnstrng);
try
{
//writing sql query
string sql = "UPDATE table_subject SET SubjectCode=@SubjectCode, SubjectName=@SubjectName, OfferedYear=@OfferedYear, OfferedSemester=@OfferedSemester, LectureHours=@LectureHours, TuteHours=@TuteHours, LabHours=@LabHours, EvolutionHours=@EvolutionHours WHERE No=@No";
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.Parameters.AddWithValue("@SubjectCode", s.SubjectCode);
cmd.Parameters.AddWithValue("@SubjectName", s.SubjectName);
cmd.Parameters.AddWithValue("@OfferedYear", s.OfferedYear);
cmd.Parameters.AddWithValue("@OfferedSemester", s.OfferedSemester);
cmd.Parameters.AddWithValue("@LectureHours", s.LectureHours);
cmd.Parameters.AddWithValue("@TuteHours", s.TuteHours);
cmd.Parameters.AddWithValue("@LabHours", s.LabHours);
cmd.Parameters.AddWithValue("@EvolutionHours", s.EvolutionHours);
cmd.Parameters.AddWithValue("@No", s.No);
conn.Open();
int rows = cmd.ExecuteNonQuery();
if (rows > 0)
{
isSuccess = true;
}
else
{
isSuccess = false;
}
}
catch (Exception ex)
{
}
finally
{
conn.Close();
}
return(isSuccess);
}
//Insert
public bool Insert(subjectClass s)
{
bool isSuccess = false;
SqlConnection conn = new SqlConnection(myconnstrng);
try
{
//writing sql query
string sql = "INSERT INTO table_subject (SubjectCode, SubjectName, OfferedYear, OfferedSemester, LectureHours, TuteHours, LabHours, EvolutionHours) VALUES(@SubjectCode, @SubjectName, @OfferedYear, @OfferedSemester, @LectureHours, @TuteHours, @LabHours, @EvolutionHours)";
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.Parameters.AddWithValue("@SubjectCode", s.SubjectCode);
cmd.Parameters.AddWithValue("@SubjectName", s.SubjectName);
cmd.Parameters.AddWithValue("@OfferedYear", s.OfferedYear);
cmd.Parameters.AddWithValue("@OfferedSemester", s.OfferedSemester);
cmd.Parameters.AddWithValue("@LectureHours", s.LectureHours);
cmd.Parameters.AddWithValue("@TuteHours", s.TuteHours);
cmd.Parameters.AddWithValue("@LabHours", s.LabHours);
cmd.Parameters.AddWithValue("@EvolutionHours", s.EvolutionHours);
conn.Open();
int rows = cmd.ExecuteNonQuery();
if (rows > 0)
{
isSuccess = true;
}
else
{
isSuccess = false;
}
}
catch (Exception ex)
{
}
finally
{
conn.Close();
}
return(isSuccess);
}
//delete
public bool Delete(subjectClass s)
{
bool isSuccess = false;
SqlConnection conn = new SqlConnection(myconnstrng);
try
{
//writing sql query
string sql = "DELETE FROM table_subject WHERE No=@No";
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.Parameters.AddWithValue("@No", s.No);
conn.Open();
int rows = cmd.ExecuteNonQuery();
if (rows > 0)
{
isSuccess = true;
}
else
{
isSuccess = false;
}
}
catch (Exception ex)
{
}
finally
{
conn.Close();
}
return(isSuccess);
}