private async void btn_Import_Click(object sender, EventArgs e)
{
using (OpenFileDialog dialog = new OpenFileDialog()
{
Filter = "Excel Workbook|*.xlsx", ValidateNames = true
})
{
if (dialog.ShowDialog() == DialogResult.OK)
{
Enabled = false;
firebase_Connection fcon = new firebase_Connection();
SqlConnection con = new SqlConnection(connection_string);
string query = "insert into vw_es_students (Full_Name,Student_No,College,Course,Status,Year,Password) " +
" values (@param_fn,@param_sn,@param_cl,@param_cs,@param_s,@param_y,@param_p)";
string truncate_query = "TRUNCATE TABLE vw_es_students";
SqlCommand cmd = new SqlCommand(query, con);
SqlCommand truncate_cmd = new SqlCommand(truncate_query, con);
string path = dialog.FileName;
Excel excel = new Excel(path, 1);
try
{
List <_App_User> results = excel.ReadCell();
//cleanup
GC.Collect();
GC.WaitForPendingFinalizers();
excel.cleanCOMobjects();
con.Open();
truncate_cmd.ExecuteNonQuery();
int max = excel._userCount * 4;
progressBar1.Maximum = max;
//drop queue_status and accounts first
await fcon.Controller_TruncateQueueStatus();
await fcon.Controller_DeleteAllAccounts();
foreach (_App_User b in results)
{
string password = Cryptography.Encrypt(b.password.ToString());
progressBar1.Increment(1);
//upload to the Firebase DB
try
{
await fcon.Controller_ImportUsers(b);
progressBar1.Increment(1);
await fcon.Controller_RegisterThisUser(b);
progressBar1.Increment(1);
await fcon.Controller_InsertQueueStatus(b.accountNumber);
progressBar1.Increment(1);
//upload to local db
cmd.Parameters.AddWithValue("@param_fn", b.lastName.ToUpper() + "," + b.firstName + " " + b.middleName);
cmd.Parameters.AddWithValue("@param_sn", b.accountNumber);
cmd.Parameters.AddWithValue("@param_cl", b.college);
cmd.Parameters.AddWithValue("@param_cs", b.course);
cmd.Parameters.AddWithValue("@param_s", b.status);
cmd.Parameters.AddWithValue("@param_y", b.year);
cmd.Parameters.AddWithValue("@param_p", password);
cmd.ExecuteNonQuery();
cmd.Parameters.Clear();
}
catch (FirebaseAuthException exd) {
Console.WriteLine(exd.Message);
}
}
con.Close();
progressBar1.Value = max;
MessageBox.Show("Import finished!", "Success!");
progressBar1.Value = 0;
}
catch (FormatException)
{
progressBar1.Value = 0;
MessageBox.Show("Make sure all the ID contains numbers only.", "Format error");
}
catch (FirebaseAuthException exd)
{
//progressBar1.Value = 0;
//MessageBox.Show("Make sure all of the Student_No contains no spaces and special characters. Error Code: "+exd.Reason,"Online Database error!");
}
catch (FirebaseException)
{
progressBar1.Value = 0;
MessageBox.Show("Please check your internet connection. Error Code:", "Connection error");
}
Enabled = true;
}
}
}
private void button1_Click(object sender, EventArgs e)
{
// Save changes
// Check textBoxes length if OK
Console.WriteLine("wat items");
if (OkFieldLength())
{
SqlConnection con = new SqlConnection(connection_string);
// Check if password is correct
SqlCommand _check_cmd = new SqlCommand("SELECT Password FROM users WHERE status = @param_st", con);
_check_cmd.Parameters.AddWithValue("@param_st", 0);
SqlDataReader reader;
string Password = "";
Console.WriteLine("Running items");
try
{
con.Open();
reader = _check_cmd.ExecuteReader();
if (reader.Read())
{
Password = (string)reader["Password"];
}
if (Cryptography.Decrypt(Password).Equals(textBox6.Text))
{
string query = "update Users set ";
SqlCommand _cmd = new SqlCommand();
_cmd.Connection = con;
if (!(string.IsNullOrEmpty(textBox4.Text)))
{
query += " Password = @param2";
_cmd.Parameters.AddWithValue("@param2", Cryptography.Encrypt(textBox4.Text.ToString()));
}
query += " where status = @param_st";
_cmd.Parameters.AddWithValue("@param_st", 0);
_cmd.CommandText = query;
_cmd.ExecuteNonQuery();
textBox4.Clear();
textBox6.Clear();
MessageBox.Show("Change Success", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
MessageBox.Show("Please enter the valid credentials.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
con.Close();
}
catch (SqlException ex)
{
MessageBox.Show("DB error! {0}", ex.Message);
}
}
}
