Add project files.

MySQL Database/MySqlConnector.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using MySql.Data.MySqlClient;
+using MySql.Data;
+using System.Data;
+using System.Windows.Forms;
+using System.Security.Cryptography;
+using System.Configuration;
+using System.Threading;
+
+namespace MySQL_Database
+{
+    internal class MySqlConnector
+    {
+        
+        public static MySqlConnection GetConnection()
+        {
+            string connString = "datasource=localhost;port=3306;username=root;password=;database=students;";
+            MySqlConnection conn = new MySqlConnection(connString);
+            try
+            {
+                conn.Open();
+            }catch(MySqlException ex)
+            {
+                MessageBox.Show("MySQL Connection! \n" + ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+            return conn;
+        }
+
+        public static void AddStudent(string stdid, string fullname, int age, string sex, string address, string email, int contact, string stdtype, string yearLevel, string program, int creds, string password)
+        {
+            string sql = "INSERT INTO studentinfo (student_id, full_name, age, sex, address, email, contact_no, student_type, year_level, program, role_credentials, studentpass) VALUE (@stdid, @fullname, @age, @sex, @address, @email, @contact, @stdtype, @yearLevel, @program, @creds, @password)";
+
+            using (MySqlConnection conn = GetConnection())
+            {
+                try
+                {
+                    using (MySqlCommand cmd = new MySqlCommand(sql ,conn))
+                    {
+                        cmd.Parameters.AddWithValue("@student_id", stdid);
+                        cmd.Parameters.AddWithValue("@full_name", fullname);
+                        cmd.Parameters.AddWithValue("@age", age);
+                        cmd.Parameters.AddWithValue("@sex", sex);
+                        cmd.Parameters.AddWithValue("@address", address);
+                        cmd.Parameters.AddWithValue("@email", email);
+                        cmd.Parameters.AddWithValue("@contact_no", contact);
+                        cmd.Parameters.AddWithValue("@student_type", stdtype);
+                        cmd.Parameters.AddWithValue("@year_level", yearLevel);
+                        cmd.Parameters.AddWithValue("@program", program);
+                        cmd.Parameters.AddWithValue("@roles_credentials", creds);
+                        cmd.Parameters.AddWithValue("@studentpass", password);
+
+
+                        int rosAffected = cmd.ExecuteNonQuery();
+
+
+                    }
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show("Student not added!\n"+ex.Message, "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+                conn.Close();
+            }
+
+        }
+
+        public void LoginAccount(string email, string password)
+        {
+            string firstChar = email.ToString().Trim()[0].ToString();
+            if (int.TryParse(firstChar, out int result))
+            {
+                if(CheckData(email, password))
+                {
+                    IndividualStudentInfo indi = new IndividualStudentInfo();
+                    indi.Show();
+                }
+                
+                MessageBox.Show("Authentication successful!", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                
+            }else if (CheckData(email, password))
+            {
+                IndividualStudentInfo indi = new IndividualStudentInfo();
+                indi.Show();
+                //studinfoForm admin = new studinfoForm();
+                //admin.Show();
+
+            }
+            else
+            {
+                MessageBox.Show("Invalid email or password!", "Stop", MessageBoxButtons.OK, MessageBoxIcon.Warning);
+            }
+            
+
+        }
+
+        private bool CheckData(string email, string pass)
+        {
+            bool exist = false;
+            using (MySqlConnection conn = GetConnection())
+            {
+                try
+                {
+                    
+
+                        //string qry = "SELECT * FROM credentials WHERE studentID = @email AND password;";
+                        //using (MySqlCommand cmd = new MySqlCommand(qry, conn))
+                        //{ 
+                        //    cmd.Parameters.AddWithValue("@studentID", email);
+                        //    cmd.Parameters.AddWithValue("@password", pass);
+                        //    int count = Convert.ToInt32(cmd.ExecuteScalar());
+                        //    exist = count > 0;
+                        //}
+                    
+                        string qry = "SELECT * FROM credentials WHERE admin = @email OR studentID = @email AND password = @password";
+                    using (MySqlCommand cmd = new MySqlCommand(qry, conn))
+                    {
+                        cmd.Parameters.AddWithValue("@email", email);
+                        cmd.Parameters.AddWithValue("@studentID", email);
+                        cmd.Parameters.AddWithValue("@password", pass);
+                        int count = Convert.ToInt32(cmd.ExecuteScalar());
+                        exist = count > 0;
+
+                        MySqlDataReader reader = cmd.ExecuteReader();
+                        if (reader.HasRows)
+                        {
+                            return true;
+                            
+                        }
+                        else
+                        {
+                            return false;
+
+                        }
+                        
+                    }
+                }catch(Exception ex)
+                {
+                    MessageBox.Show("Error: " + ex.Message);
+                }
+                conn.Close();
+            }
+            return exist;
+        }
+    }
+}