private void updatestudent_Load(object sender, EventArgs e)
{
MySqlConnection con = Database.dbConnect.Initialize();
Database.info il = new Database.info();
il.datagridview_load("SELECT class_roll as 'Class Roll', exam_roll as 'Exam Roll', name as 'Name', session as 'Session', gender as 'Gender', hall as 'Hall', email as 'Email', phone as 'Phone' FROM student", stuDGV);
con.Open();
string Sql = "select * from session";
MySqlCommand cmd = new MySqlCommand(Sql, con);
MySqlDataReader dr = cmd.ExecuteReader();
while (dr.Read())
{
sessionCB.Items.Add(dr[0]);
session2CB.Items.Add(dr[0]);
}
}
private void courseinfo_Load(object sender, EventArgs e)
{
MySqlConnection con = Database.dbConnect.Initialize();
Database.info il = new Database.info();
il.datagridview_load("SELECT course_code as 'Course Code', course_title as 'Course Title', course_credit as 'Course Credit', course as 'Course Type', session as 'Session', year as 'Year', semester as 'semester' FROM course", courseDGV);
con.Open();
string Sql = "select session from session";
MySqlCommand cmd = new MySqlCommand(Sql, con);
MySqlDataReader dr = cmd.ExecuteReader();
while (dr.Read())
{
sessionCB.Items.Add(dr[0]);
session2CB.Items.Add(dr[0]);
}
}
private void updateB_Click(object sender, EventArgs e)
{
String classroll = crTB.Text;
String examroll = erTB.Text;
String name = nameTB.Text;
String ses = sessionCB.Text;
String gender = genderCB.Text;
MySqlConnection con = Database.dbConnect.Initialize();
con.Open();
String sql = "";
sql = "UPDATE student SET class_roll='" + classroll + "', exam_roll='" + examroll + "', name='" + name + "', session='" + ses + "', gender='" + gender + "', hall = '" + hallTB.Text + "', email = '" + mailTB.Text + "', phone = '" + phoneTB.Text + "' WHERE `class_roll`='" + classroll + "' and session = '" + ses + "'";
MySqlCommand cmd = new MySqlCommand(sql, con);
try
{
DialogResult d = MessageBox.Show("Are you sure to update data?", "Confirm", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (d == DialogResult.Yes)
{
MySqlCommand comd = new MySqlCommand(sql, con);
comd.ExecuteNonQuery();
MessageBox.Show("Successfully data updated.", "Success");
}
con.Close();
}
catch (Exception ex)
{
MessageBox.Show("Error Message:" + ex.Message);
con.Close();
}
Database.info il = new Database.info();
il.datagridview_load("SELECT class_roll as 'Class Roll', exam_roll as 'Exam Roll', name as 'Name', session as 'Session', gender as 'Gender', hall as 'Hall', email as 'Email', phone as 'Phone' FROM student", stuDGV);
crTB.Text = "";
erTB.Text = "";
nameTB.Text = "";
sessionCB.Text = "";
genderCB.Text = "";
hallTB.Text = "";
mailTB.Text = "";
phoneTB.Text = "";
}
private void deleteB_Click(object sender, EventArgs e)
{
String ccode = ccodeTB.Text;
String ctitle = ctitleTB.Text;
String ccredit = ccreditCB.Text;
String c = cTB.Text;
String session = sessionCB.Text;
String sem = yearCB.Text;
String search_code_str = searchccodeTB.Text;
MySqlConnection con = Database.dbConnect.Initialize();
con.Open();
String sql = "";
sql = "delete from course WHERE `course_code`='" + ccode + "' and session = '" + session + "'";;
MySqlCommand cmd = new MySqlCommand(sql, con);
try
{
DialogResult d = MessageBox.Show("Are you sure to delete data?", "Confirm", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (d == DialogResult.Yes)
{
MySqlCommand comd = new MySqlCommand(sql, con);
comd.ExecuteNonQuery();
MessageBox.Show("Successfully data deleted.", "Success");
}
con.Close();
}
catch (Exception ex)
{
MessageBox.Show("Error Message:" + ex.Message);
con.Close();
}
Database.info il = new Database.info();
il.datagridview_load("SELECT course_code as 'Course Code', course_title as 'Course Title', course_credit as 'Course Credit', course as 'Course Type', session as 'Session', year as 'Year', semester as 'Semester' FROM course", courseDGV);
ccodeTB.Text = "";
ctitleTB.Text = "";
ccreditCB.Text = "";
cTB.Text = "";
sessionCB.Text = "";
yearCB.Text = "";
semCB.Text = "";
}
private void addB_Click(object sender, EventArgs e)
{
MySqlConnection con = Database.dbConnect.Initialize();
if (crTB.Text == "" || erTB.Text == "" || nameTB.Text == "" || sessionCB.Text == "" || genderCB.Text == "" || hallTB.Text == "" || mailTB.Text == "" || phoneTB.Text == "")
{
MessageBox.Show("Empty field is not allow. Please try again.");
return;
}
con.Open();
this.testDatabaseExists();
String sql = "INSERT into student (class_roll, exam_roll, name, session, gender, hall, email, phone) values('" + crTB.Text + "','" + erTB.Text + "','" + nameTB.Text + "','" + sessionCB.Text + "','" + genderCB.Text + "', '" + hallTB.Text + "', '" + mailTB.Text + "', '" + phoneTB.Text + "')";
try
{
DialogResult d = MessageBox.Show("Are you sure to insert data?", "Confirm", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (d == DialogResult.Yes)
{
MySqlCommand cmd = new MySqlCommand(sql, con);
cmd.ExecuteNonQuery();
}
con.Close();
}
catch (Exception ex)
{
MessageBox.Show("Error Message:" + ex.Message);
con.Close();
}
Database.info il = new Database.info();
il.datagridview_load("SELECT class_roll as 'Class Roll', exam_roll as 'Exam Roll', name as 'Name', session as 'Session', gender as 'Gender' FROM student, hall as 'Hall', email as 'Email', phone as 'Phone' from student", stuDGV);
crTB.Text = "";
erTB.Text = "";
nameTB.Text = "";
sessionCB.Text = "";
genderCB.Text = "";
hallTB.Text = "";
mailTB.Text = "";
phoneTB.Text = "";
}
private void addB_Click(object sender, EventArgs e)
{
MySqlConnection con = Database.dbConnect.Initialize();
if (ccodeTB.Text == "" || ctitleTB.Text == "" || ccreditCB.Text == "" || cTB.Text == "" || sessionCB.Text == "" || yearCB.Text == "" || semCB.Text == "")
{
MessageBox.Show("Empty field is not allow,Please try again.");
return;
}
con.Open();
this.testDatabaseExists();
String sql = "insert into course (course_code, course_title, course_credit, course, session, year, semester) values('" + ccodeTB.Text + "','" + ctitleTB.Text + "','" + ccreditCB.Text + "', '" + cTB.Text + "','" + sessionCB.Text + "','" + yearCB.Text + "', '" + semCB.Text + "')";
try
{
DialogResult d = MessageBox.Show("Are you sure to insert data?", "Confirm", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (d == DialogResult.Yes)
{
MySqlCommand cmd = new MySqlCommand(sql, con);
cmd.ExecuteNonQuery();
MessageBox.Show("Successfully data inserted.", "Success");
}
con.Close();
}
catch (Exception ex)
{
MessageBox.Show("Error Message:" + ex.Message);
con.Close();
}
Database.info il = new Database.info();
il.datagridview_load("SELECT course_code as 'Course Code', course_title as 'Course Title', course_credit as 'Course Credit', course as 'Course Type', session as 'Session', year as 'Year', semester as 'Semester' FROM course", courseDGV);
ccodeTB.Text = "";
ctitleTB.Text = "";
ccreditCB.Text = "";
cTB.Text = "";
sessionCB.Text = "";
yearCB.Text = "";
semCB.Text = "";
}
