private void button_Click(object sender, RoutedEventArgs e)
{
if (passwordBox.Password.Equals("1") && textBox.Text.Equals("1"))
{
Admin admin = new Admin();
admin.Show();
this.Close();
}
else
{
MessageBox.Show("Проверьте введённые данные.");
}
}
Using System.Net;
SecureString SecurePassword = new NetworkCredential(string.Empty, "password").SecurePassword;
string PlainPassword = new NetworkCredential(string.Empty, SecurePassword).Password;