private void frmSetExams_FormClosing(object sender, FormClosingEventArgs e)
{
this.Hide();
frmAdmin fa = new frmAdmin();
fa.Show();
}
private void btn_close_Click(object sender, EventArgs e)
{
this.Hide();
frmAdmin fa = new frmAdmin();
fa.Show();
}
private void button1_Click(object sender, EventArgs e)
{
if (!SetExams.Any() || !grades.Any())
{
MessageBox.Show("Įrašykite egzaminų įvertinimus.");
return;
}
else if (SetExams.Count != lstBox_Exams.Items.Count)
{
MessageBox.Show("Įrašykite visų egzaminų įvertinimus.");
return;
}
SqlConnection con = new SqlConnection(connectionStr);
SqlCommand cmd = new SqlCommand("", con);
try
{
for (int i = 0; i < SetExams.Count(); i++)
{
cmd.CommandText = $"UPDATE tbl_Dalykai SET {SetExams[i]} = {grades[i]} WHERE Id = {Id}";
con.Open();
cmd.ExecuteScalar();
con.Close();
}
this.Hide();
MessageBox.Show("Sėkmingai įrašyti egzaminai");
frmAdmin fa = new frmAdmin();
fa.Show();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
//btn_Login Click event
private void btn_Login_Click_1(object sender, EventArgs e)
{
//checking if information is entered
if (txt_Username.Text == "" || txt_Password.Text == "")
{
MessageBox.Show("Įrašykite informaciją!");
return;
}
try
{
//Creating sql connection
SqlConnection con = new SqlConnection(connectionStr);
SqlCommand cmd = new SqlCommand("Select * from tbl_LoginInfo where UserName=@username and Password=@password", con);
//Adding reference
cmd.Parameters.AddWithValue("@username", txt_Username.Text);
cmd.Parameters.AddWithValue("@password", txt_Password.Text);
//Opening connection
con.Open();
SqlDataAdapter adapt = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
adapt.Fill(ds);
con.Close();
int count = ds.Tables[0].Rows.Count;
//If count is equal to 1, then show Main form
if (count == 1)
{
MessageBox.Show("Sėkmingai prisijungta!");
this.Hide();
if (txt_Username.Text == "Admin")
{
frmAdmin fmA = new frmAdmin();
fmA.Show();
}
else
{
string surname = Convert.ToString(ds.Tables[0].Rows[0]["Surname"]);
int id = Convert.ToInt32(ds.Tables[0].Rows[0]["Id"]);
string personalID = Convert.ToString(ds.Tables[0].Rows[0]["PersonalID"]);
string fullName = txt_Username.Text + " " + surname;
FrmMain fm = new FrmMain(fullName, personalID);
fm.Text = fullName;
fm.DisplayExams(id);
fm.Show();
}
}
else
{
MessageBox.Show("Prisijungimas nesėkmingas. Patikrinkite įvestą informaciją.");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void btn_Add_Click(object sender, EventArgs e)
{
//Checking if given textboxes aren't empty
if (!(txt_UserName.Text == "" && txt_Surname.Text == "" && txt_personalID.Text == "" && txt_Password.Text == ""))
{
if (txt_personalID.Text.Length == 11)
{
if (lstbx_exams.CheckedIndices.Count >= 2 && lstbx_exams.CheckedIndices.Count <= 5)
{
try
{
int id;
SqlConnection con = new SqlConnection(connectionStr);
//Finding biggest Id
SqlCommand cmd = new SqlCommand("SELECT MAX(Id) FROM tbl_LoginInfo", con);
cmd.Connection = con;
con.Open();
//saving id
id = Convert.ToInt32(cmd.ExecuteScalar()) + 1;
//inserting new value
cmd.CommandText = $"INSERT INTO tbl_LoginInfo (Id, UserName, Password, PersonalID, Surname) VALUES ({id}, " +
$"'{txt_UserName.Text}', '{txt_Password.Text}', '{txt_personalID.Text}', '{txt_Surname.Text}')";
cmd.ExecuteNonQuery();
con.Close();
//Getting a list of selected exams
List <string> checkeditems = lstbx_exams.CheckedItems.Cast <object>()
.Select(item => item.ToString()).ToList();
try
{
con.Open();
cmd.CommandText = $"INSERT tbl_Dalykai (Id) VALUES ({id})";
cmd.ExecuteNonQuery();
foreach (var item in checkeditems)
{
if (item == "Lietuvių k.")
{
cmd.CommandText = $"UPDATE tbl_Dalykai SET Lietuviu = 101 WHERE Id = {id}";
}
else if (item == "Anglų k.")
{
cmd.CommandText = $"UPDATE tbl_Dalykai SET Anglu = 101 WHERE Id = {id}";
}
else if (item == "Informacinės technologijos")
{
cmd.CommandText = $"UPDATE tbl_Dalykai SET IT = 101 WHERE Id = {id}";
}
else
{
cmd.CommandText = $"UPDATE tbl_Dalykai SET {item} = 101 WHERE Id = {id}";
}
cmd.ExecuteNonQuery();
}
con.Close();
}
catch (Exception er)
{
MessageBox.Show(er.Message);
}
MessageBox.Show("Moksleivis sėkmingai pridėtas!");
frmAdmin fa = new frmAdmin();
this.Hide();
fa.Show();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
else
{
MessageBox.Show("Prašome parinkti ne mažiau nei 2 ir ne daugiau kaip 5 egzaminus!");
}
}
else
{
MessageBox.Show("Asmens kodas turi turėti 11 skaitmenų!");
}
}
else
{
MessageBox.Show("Prašome įrašyti visą informaciją!");
}
}
