WPF MVVM 关闭当前窗体 打开新的窗体

登录成功窗体切换

1、xaml

点击事件将登录页面某个控件带回至ViewModel

<Button Content="登  录" Command="{Binding LoginCommand}" CommandParameter="{Binding ElementName=pb_password}" Margin="30,10" Width="286" Height="40" Style="{StaticResource ButtonPrimary}"/>

2、viewmodel

/// <summary>
        /// 登录事件
        /// </summary>
        public RelayCommand<System.Windows.Controls.PasswordBox> LoginCommand =>
            new Lazy<RelayCommand<System.Windows.Controls.PasswordBox>>(() =>
                new RelayCommand<System.Windows.Controls.PasswordBox>(Login)).Value;

private void Login(System.Windows.Controls.PasswordBox password)
{
    WIndex window = new WIndex();
                        window.Show();
 
                        Window.GetWindow(password).Close();
}

原文：https://www.cnblogs.com/lonelyxmas/p/12164897.html