private void pictureBox2_Click_1(object sender, EventArgs e) { if (this._permi != 1) { MessageBox.Show("Access Denied"); return; } UserForm frm = new UserForm(_permi); frm.Show(); }
MySqlCommand command; // Used to launch a command to database // Event handler for button click private void button1_Click(object sender, EventArgs e) { // Check if the text boxes have any text if (string.IsNullOrEmpty(textBox1.Text)) { MessageBox.Show("You have to complete the username field!", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Stop); textBox1.Focus(); } else if (string.IsNullOrEmpty(textBox2.Text)) { MessageBox.Show("You have to complete the password field!", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Stop); textBox2.Focus(); } string connectionString = "Server = 127.0.0.1; Port = 3306; Database = db_admin; Uid = root; Pwd=; "; // Details for connection //string connectionString = "Server = 192.168.1.113; Port = 3306; Database = db_A030; Uid = user_A030; Pwd = pass_A030"; string querry = "SELECT userType FROM users WHERE userName = '******' AND userPass = '******'"; // The querry for the database connection = new MySqlConnection(connectionString); // Create a connection with the database command = new MySqlCommand(querry, connection); // Create a command for the database connection.Open(); // Connect to the database string userType = command.ExecuteScalar() as string; // Execute the command and return the result as a string connection.Close(); // Close the connection to the database // Check if any results have been returned. If there is no result, return an error to the user if (string.IsNullOrEmpty(userType)) { MessageBox.Show("Wrong username or password!", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error); textBox1.Text = ""; textBox2.Text = ""; } // If there is a result, check if the user is an administrator or an user based on what the database returned and // open the form for the administrator or the user else if (userType.Equals("A")) { AdminForm f = new AdminForm(); f.Show(); this.Close(); } else if (userType.Equals("U")) { UserForm f = new UserForm(); f.Show(); this.Close(); } /*if (textBox1.Text == "") * { * MessageBox.Show("You have to complete the username field!", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Stop); * textBox1.Focus(); * } * else if (textBox2.Text == "") * { * MessageBox.Show("You have to complete the password field!", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Stop); * textBox2.Focus(); * } * else if (textBox1.Text == "admin") * { * AdminForm f = new AdminForm(); * f.Show(); * this.Close(); * } * else * { * UserForm f = new UserForm(); * f.Show(); * this.Close(); * }*/ }
// Event handler for button click private void button1_Click(object sender, EventArgs e) { // Check if the text boxes have any text if(string.IsNullOrEmpty(textBox1.Text)) { MessageBox.Show("You have to complete the username field!", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Stop); textBox1.Focus(); } else if(string.IsNullOrEmpty(textBox2.Text)) { MessageBox.Show("You have to complete the password field!", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Stop); textBox2.Focus(); } string connectionString = "Server = 127.0.0.1; Port = 3306; Database = db_admin; Uid = root; Pwd=; "; // Details for connection //string connectionString = "Server = 192.168.1.113; Port = 3306; Database = db_A030; Uid = user_A030; Pwd = pass_A030"; string querry = "SELECT userType FROM users WHERE userName = '******' AND userPass = '******'"; // The querry for the database connection = new MySqlConnection(connectionString); // Create a connection with the database command = new MySqlCommand(querry, connection); // Create a command for the database connection.Open(); // Connect to the database string userType = command.ExecuteScalar() as string; // Execute the command and return the result as a string connection.Close(); // Close the connection to the database // Check if any results have been returned. If there is no result, return an error to the user if (string.IsNullOrEmpty(userType)) { MessageBox.Show("Wrong username or password!", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error); textBox1.Text = ""; textBox2.Text = ""; } // If there is a result, check if the user is an administrator or an user based on what the database returned and // open the form for the administrator or the user else if (userType.Equals("A")) { AdminForm f = new AdminForm(); f.Show(); this.Close(); } else if (userType.Equals("U")) { UserForm f = new UserForm(); f.Show(); this.Close(); } /*if (textBox1.Text == "") { MessageBox.Show("You have to complete the username field!", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Stop); textBox1.Focus(); } else if (textBox2.Text == "") { MessageBox.Show("You have to complete the password field!", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Stop); textBox2.Focus(); } else if (textBox1.Text == "admin") { AdminForm f = new AdminForm(); f.Show(); this.Close(); } else { UserForm f = new UserForm(); f.Show(); this.Close(); }*/ }