public partial class MainWindow : Window { AppContext db; public RefgistrationUch() { InitializeComponent(); db = new AppContext(); } private void Button_Reg_Click(object sender, RoutedEventArgs e) { string login = Login.Text.Trim(); string pas1 = pass1.Password.Trim(); string pas2= pass2.Password.Trim(); string mail = email.Text.Trim(); if(login.Length < 5) { Login.ToolTip = "Это поле введено не корректно"; Login.Background = Brushes.Gray; } else { Login.ToolTip = ""; Login.Background = Brushes.Transparent; } if(pas1.Length < 5) { pass1.ToolTip = "Это поле введено не корректно"; pass1.Background = Brushes.Gray; } else { pass1.ToolTip = ""; pass1.Background = Brushes.Transparent; } if (pas1 != pas2) { pass2.ToolTip = "Это поле введено не корректно"; pass2.Background = Brushes.Gray; } else { pass2.ToolTip = ""; pass2.Background = Brushes.Transparent; } if (!mail.Contains("@")||!mail.Contains(".")) { email.ToolTip = "Это поле введено не корректно"; email.Background = Brushes.Gray; } else { email.ToolTip = ""; email.Background = Brushes.Transparent; } uchenik uchenik = new uchenik(login,pas1,mail); db.ucheniki.Add(uchenik); db.SaveChanges(); } class uchenik { public int id { get; set; } private string login, email,password; public string Login { get { return login; } set { login = value; } } public string Email { get { return email; } set { email = value; } } public string Password { get { return password; } set { password = value; } } public uchenik() { } public uchenik(string login,string email,string password) { this.login = login; this.email = email; this.password = password; } } Window x:Class="kursach_mukha_692.RegistrationUch" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:local="clr-namespace:kursach_mukha_692" mc:Ignorable="d" xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes" Title="Авторизация" Height="600" Width="450" WindowStartupLocation="CenterScreen" VerticalAlignment="Bottom" HorizontalAlignment="Stretch" ScrollViewer.HorizontalScrollBarVisibility="Disabled">