private void button1_Click(object sender, EventArgs e) { try { string MyConnection = "datasource=localhost;port=3306;username=root;password=root"; string Query = "insert into database.users(Username, Password, Name, Email) values('" + this.textBox2.Text + "','" + this.textBox3.Text + "', '" + this.textBox1.Text + "','" + this.textBox4.Text + "')"; MySqlConnection MyConn = new MySqlConnection(MyConnection); MySqlCommand MyCommand = new MySqlCommand(Query, MyConn); MySqlDataReader MyReader; MyConn.Open(); MyReader = MyCommand.ExecuteReader(); MessageBox.Show("Registered successfully"); this.Hide(); MyReader.Close(); MySqlDataReader MyReader2; string query2 = "Select * from database.users where Username='******'and Password='******';"; MySqlCommand MyCommand2 = new MySqlCommand(query2, MyConn); MyReader2 = MyCommand2.ExecuteReader(); int count = 0; while (MyReader2.Read()) { count = count + 1; } if (count==1) { MainForm m=new MainForm(MyReader2.GetString("Name")); m.Show(); } } catch (Exception ex) { MessageBox.Show(ex.Message); } }
private void button1_Click(object sender, EventArgs e) { string MyConnection = "datasource=localhost;port=3306;username=root;password=root"; MySqlConnection conn = new MySqlConnection(MyConnection); MySqlDataAdapter da = new MySqlDataAdapter("Select * from database.users where Username='******'and Password='******'", conn); DataTable dt = new System.Data.DataTable(); da.Fill(dt); if (dt.Rows.Count == 1) { this.Hide(); MainForm m = new MainForm(dt.Rows[0][0].ToString()); m.Show(); ((Form)m).Controls["label5"].Text = dt.Rows[0][0].ToString(); } else { MessageBox.Show("Check Username/password and Please Try again"); textBox2.Clear(); textBox1.Clear(); } }