private void glavbtn_Click(object sender, EventArgs e) { this.Hide(); Glavnaya glavnaya = new Glavnaya(); glavnaya.ShowDialog(); this.Close(); }
private void metroButton1_Click(object sender, EventArgs e) { if (mistakecounter > 3) { MessageBox.Show("Вы исчерпали все попытки\nПрограмма будет закрыта", "Предупреждение", MessageBoxButtons.OK, MessageBoxIcon.Warning); Application.Exit(); } else { if (txtlogin.Text == "" || txtpass.Text == "") { MessageBox.Show("Заполните поля!", "Предупреждение", MessageBoxButtons.OK, MessageBoxIcon.Warning); } else { using (SqlConnection connection = new SqlConnection(sqlconn)) { connection.Open(); using (SqlCommand command = new SqlCommand("SELECT IDUser, Login, Password FROM Users WHERE Login = @login AND Password = @password", connection)) { command.Parameters.AddWithValue("@login", txtlogin.Text); command.Parameters.AddWithValue("@password", txtpass.Text); using (SqlDataReader reader = command.ExecuteReader()) { while (reader.Read()) { if (reader.HasRows) { MessageBox.Show(reader.GetInt32(0).ToString()); this.Hide(); Glavnaya glavnaya = new Glavnaya(); glavnaya.ShowDialog(); this.Close(); } else { MessageBox.Show("Неверный логин или пароль", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error); mistakecounter++; } } } } } } } }