public void bLogin_Click(object sender, EventArgs e) { String loginUser = loginField.Text; String passUser = passField.Text; DB db = new DB(); DataTable table = new DataTable(); MySqlDataAdapter adapter = new MySqlDataAdapter(); MySqlCommand command = new MySqlCommand("SELECT * FROM `users` WHERE `login`=@uL AND `pass`=@uP AND `Admin` != 'NULL'", db.GetConnection()); command.Parameters.Add("@uL", MySqlDbType.VarChar).Value = loginUser; command.Parameters.Add("@uP", MySqlDbType.VarChar).Value = passUser; adapter.SelectCommand = command; adapter.Fill(table); if (table.Rows.Count == 0 ) { MessageBox.Show("Такого аккаунта не существует"); return; } admin = table.Rows[0][6].ToString(); if (table.Rows.Count > 0 && admin == "0") { this.Hide(); Menu mainForm = new Menu(); mainForm.Show(); mainForm.id.Text = table.Rows[0][0].ToString(); mainForm.admin = table.Rows[0][6].ToString(); mainForm.Valutka.Text = table.Rows[0][7].ToString(); } else if (table.Rows.Count > 0 && admin == "1") { this.Hide(); AdminPanel adminchik = new AdminPanel(); adminchik.Show(); adminchik.id.Text = table.Rows[0][0].ToString(); adminchik.admin = table.Rows[0][6].ToString(); adminchik.Valutka.Text = table.Rows[0][7].ToString(); } else if (table.Rows.Count > 0 && admin == "2") { this.Hide(); AvtoMesh adminc = new AvtoMesh(); adminc.Show(); adminc.id.Text = table.Rows[0][0].ToString(); adminc.admin = table.Rows[0][6].ToString(); adminc.nameAv = table.Rows[0][3].ToString(); adminc.Valutka.Text = table.Rows[0][7].ToString(); } else { MessageBox.Show("No"); } }