using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Imaging; using System.Windows.Navigation; using System.Windows.Shapes; namespace WPF01.pages { /// /// Логика взаимодействия для Authorization.xaml /// public partial class Authorization : Page { public Authorization() { InitializeComponent(); } private void ButtonClick(object sender, RoutedEventArgs e) { } private void TextBoxInput(object sender, KeyEventArgs e) { if (textBoxLogin.Text.Length >= 4 && textBoxPassword.Password.Length >= 4) { buttonLogin.IsEnabled = true; } else { buttonLogin.IsEnabled = false; } } } }