prism WPF 登录对话框登录成功后显示主界面

prism WPF 登录对话框登录成功后显示主界面

项目结构

LoginUC.xaml

<UserControl x:Class="PrismWpfApp.Views.LoginUC"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:local="clr-namespace:PrismWpfApp.Views"xmlns:helper="clr-namespace:PrismWpfApp.Helper"mc:Ignorable="d" d:DesignHeight="450" d:DesignWidth="800" ><UserControl.Resources><ControlTemplate TargetType="Button" x:Key="CloseButtonTemplate"><Grid Background="Transparent" Name="back"><TextBlock Text="&#xe653;" FontFamily="{DynamicResource iconfont}" VerticalAlignment="Center" HorizontalAlignment="Center"FontSize="14"/></Grid><ControlTemplate.Triggers><Trigger Property="IsMouseOver" Value="True"><Setter Property="Background" Value="#DDD" TargetName="back"/></Trigger></ControlTemplate.Triggers></ControlTemplate><Style TargetType="TextBox" x:Key="UsernameTextBoxStyle"><Setter Property="Template"><Setter.Value><ControlTemplate TargetType="{x:Type TextBox}"><Border x:Name="border" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True"CornerRadius="5"><Grid><Grid.ColumnDefinitions><ColumnDefinition Width="40"/><ColumnDefinition/></Grid.ColumnDefinitions><Border BorderBrush="#DDD" BorderThickness="0,0,1,0" Margin="0,8,5,8"/><TextBlock Text="请输入用户名" Grid.Column="1" VerticalAlignment="Center" Foreground="#BBB"Name="markText" Visibility="Collapsed" FontSize="12" Margin="2,0"/><TextBlock Text="&#xe610;"FontFamily="{DynamicResource iconfont}" FontSize="14" VerticalAlignment="Center" HorizontalAlignment="Center"Foreground="#DDD"/><ScrollViewer x:Name="PART_ContentHost" Focusable="false"HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Hidden"Grid.Column="1"VerticalAlignment="Center" MinHeight="20"/></Grid></Border><ControlTemplate.Triggers><Trigger Property="IsEnabled" Value="false"><Setter Property="Opacity" TargetName="border" Value="0.56"/></Trigger><Trigger Property="IsMouseOver" Value="true"><Setter Property="BorderBrush" TargetName="border" Value="#FF7EB4EA"/></Trigger><Trigger Property="IsKeyboardFocused" Value="true"><Setter Property="BorderBrush" TargetName="border" Value="#FF569DE5"/></Trigger><DataTrigger Binding="{Binding Path=Text,RelativeSource={RelativeSource Mode=Self}}" Value=""><Setter Property="Visibility" TargetName="markText" Value="Visible"/></DataTrigger></ControlTemplate.Triggers></ControlTemplate></Setter.Value></Setter></Style><Style x:Key="PasswordBoxStyle" TargetType="{x:Type PasswordBox}"><Setter Property="Template"><Setter.Value><ControlTemplate TargetType="{x:Type PasswordBox}"><Border x:Name="border" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True"CornerRadius="5"><Grid><Grid.ColumnDefinitions><ColumnDefinition Width="40"/><ColumnDefinition/></Grid.ColumnDefinitions><Border BorderBrush="#DDD" BorderThickness="0,0,1,0" Margin="0,8,5,8"/><TextBlock Text="请输入密码" Grid.Column="1" VerticalAlignment="Center" Foreground="#BBB"Name="markText" Visibility="Collapsed" FontSize="12" Margin="2,0"/><TextBlock Text="&#xe602;" FontFamily="{StaticResource iconfont}" FontSize="14" VerticalAlignment="Center" HorizontalAlignment="Center"Foreground="#DDD"/><ScrollViewer x:Name="PART_ContentHost" Focusable="false"HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Hidden"Grid.Column="1"VerticalAlignment="Center" MinHeight="20"/></Grid></Border><ControlTemplate.Triggers><Trigger Property="IsEnabled" Value="false"><Setter Property="Opacity" TargetName="border" Value="0.56"/></Trigger><Trigger Property="IsMouseOver" Value="true"><Setter Property="BorderBrush" TargetName="border" Value="#FF7EB4EA"/></Trigger><Trigger Property="IsKeyboardFocused" Value="true"><Setter Property="BorderBrush" TargetName="border" Value="#FF569DE5"/></Trigger><DataTrigger Binding="{Binding Path=UserModel.Password}" Value=""><Setter Property="Visibility" TargetName="markText" Value="Visible"/></DataTrigger></ControlTemplate.Triggers></ControlTemplate></Setter.Value></Setter><Style.Triggers><MultiTrigger><MultiTrigger.Conditions><Condition Property="IsInactiveSelectionHighlightEnabled" Value="true"/><Condition Property="IsSelectionActive" Value="false"/></MultiTrigger.Conditions><Setter Property="SelectionBrush" Value="{DynamicResource {x:Static SystemColors.InactiveSelectionHighlightBrushKey}}"/></MultiTrigger></Style.Triggers></Style></UserControl.Resources><UserControl.Triggers><EventTrigger RoutedEvent="Window.Loaded"><BeginStoryboard><Storyboard><DoubleAnimation Duration="0:0:0.5" To="0" Storyboard.TargetName="tt"Storyboard.TargetProperty="X"/></Storyboard></BeginStoryboard></EventTrigger></UserControl.Triggers><Grid Width="740" Margin="5" Background="Transparent" MouseLeftButtonDown="Grid_MouseLeftButtonDown" ><Border Background="#F7F9FA" Margin="0,6" HorizontalAlignment="Right" Width="330" BorderBrush="#DDD" BorderThickness="0"CornerRadius="0,5,5,0"><Border.Effect><DropShadowEffect Color="Black" ShadowDepth="0" Direction="0" BlurRadius="10" Opacity="0.2"/></Border.Effect><Border.RenderTransform><TranslateTransform X="-350" x:Name="tt"/></Border.RenderTransform><Grid HorizontalAlignment="Right" Width="230" Margin="30,30,30,10"><Grid.RowDefinitions><RowDefinition Height="100"/><RowDefinition/><RowDefinition/><RowDefinition/><RowDefinition Height="60"/><RowDefinition Height="auto" MinHeight="40"/></Grid.RowDefinitions><StackPanel VerticalAlignment="Center" Margin="0,0,0,30"><TextBlock Text="XX公司" Foreground="#333" FontSize="22"/><TextBlock Text="专注于提升工业智能管理协作平台" FontSize="12" Foreground="#888" Margin="0,10,0,0"/></StackPanel><ComboBox Grid.Row="1" Height="35" Margin="0,8" FontSize="14"ItemsSource="{Binding DataList}"DisplayMemberPath="Name"SelectedValuePath="Id"SelectedItem="{Binding SelectUser, Mode=TwoWay}"/><PasswordBox Grid.Row="2" Height="35" Margin="0,8" Style="{StaticResource PasswordBoxStyle}"helper:PasswordBoxHelper.Attach="true"helper:PasswordBoxHelper.Password="{Binding SelectUser.Password,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"FontSize="14"/><!--<PasswordBox Grid.Row="2" Height="35" Margin="0,8" Style="{StaticResource PasswordBoxStyle}"FontSize="14"/>--><Button Content="登    录" Background="#FF104991" Foreground="White" Grid.Row="4" Height="30" Margin="0,8" BorderThickness="0" VerticalAlignment="Top"Command="{Binding LoginCommand}" CommandParameter="{Binding Path=.,RelativeSource={RelativeSource AncestorType=Window}}"/><!--<Button Content="登    录" Background="#FF104991" Foreground="White" Grid.Row="4" Height="30" Margin="0,8" BorderThickness="0" VerticalAlignment="Top"Command="{Binding LoginCommand}" CommandParameter="{Binding ElementName=win}"/>--><!--关闭按钮--><Button VerticalAlignment="Top" HorizontalAlignment="Right" Content="X" Margin="0,-30,-25,0"Template="{StaticResource CloseButtonTemplate}" Width="40" Height="30"Command="{Binding CloseCommand}" CommandParameter="{Binding Path=.,RelativeSource={RelativeSource AncestorType=Window}}"/><TextBlock Text="{Binding ErrorMsg}" Foreground="Red" TextWrapping="Wrap" Grid.Row="10"TextAlignment="Center"/></Grid></Border><!--图片--><Polygon Points="0 0,420 0,450 200 420 400 0 400" HorizontalAlignment="Left"><Polygon.Fill><!--Viewbox 设置图片显示的位置--><ImageBrush ImageSource="pack://application:,,,/PrismWpfApp;component/Asset/Images/login_image.jpg" Stretch="UniformToFill" Viewbox="0,0,1.4,1"></ImageBrush></Polygon.Fill><Polygon.Effect><!--设置阴影 ShadowDepth 设置偏移量10--><DropShadowEffect Color="Black" ShadowDepth="0" Direction="0" BlurRadius="10" Opacity="0.5"/></Polygon.Effect></Polygon><Polygon Points="0 0,420,0,450 200 420 400 0 400" Opacity="0.2" StrokeThickness="0" Stroke="White" HorizontalAlignment="Left"><Polygon.Fill><RadialGradientBrush><GradientStop Color="#22FFFFFF" Offset="0"/><GradientStop Color="#FF1B283C" Offset="1"/><GradientStop Color="#C6555F6E" Offset="0.617"/></RadialGradientBrush></Polygon.Fill></Polygon></Grid>
</UserControl>

LoginUCViewModel.cs

using Prism.Commands;
using Prism.Services.Dialogs;
using PrismWpfApp.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;namespace PrismWpfApp.ViewModels
{public class LoginUCViewModel : UiViewModelBase, IDialogAware{public LoginUCViewModel(){this.SystemTitle = "登录-XX系统";DataList.Clear();var user1 = new UserInfoModel(){Id = 1,Name = "操作员",Password = ""};DataList.Add(user1);SelectUser = user1;DataList.Add(new UserInfoModel(){Id = 2,Name = "工程师",Password = ""});DataList.Add(new UserInfoModel(){Id = 1,Name = "管理员",Password = ""});}public List<UserInfoModel> DataList { get; set; } = new List<UserInfoModel>();//选择的用户private UserInfoModel _selectUser;/// <summary>/// 选择的用户/// </summary>public UserInfoModel SelectUser{get{return _selectUser;}set{SetProperty(ref _selectUser, value);}}//public string UserName { get; set; } = "admin";//public string Password { get; set; } = "123456";private string _errorMsg;public string ErrorMsg{get{return _errorMsg;}set{_errorMsg = value;SetProperty(ref _errorMsg, value);}}/// <summary>/// 登录命令/// </summary>public DelegateCommand LoginCommand{get{return new DelegateCommand(()=>{var a = SelectUser;//var b = Password;//执行登录验证RequestClose?.Invoke(new DialogResult(ButtonResult.OK));});}}public string Title => "登录-XX系统";/// <summary>/// 关闭 委托/// </summary>public event Action<IDialogResult> RequestClose;/// <summary>/// 是否能关闭对话框/// </summary>/// <returns></returns>/// <exception cref="NotImplementedException"></exception>public bool CanCloseDialog(){return true;}/// <summary>/// 关闭后要处理的逻辑/// </summary>/// <exception cref="NotImplementedException"></exception>public void OnDialogClosed(){//关闭也可以传参数（但一般不这么做）DialogParameters pairs = new DialogParameters();pairs.Add("Result", 0);//RequestClose 不为null时执行RequestClose?.Invoke(new DialogResult(ButtonResult.No, pairs));//两种方法等效//if (RequestClose != null)//{//    RequestClose.Invoke(new DialogResult(ButtonResult.No));//}}/// <summary>/// 打开对话框前的处理逻辑/// </summary>/// <param name="parameters"></param>/// <exception cref="NotImplementedException"></exception>public void OnDialogOpened(IDialogParameters parameters){//if (parameters.ContainsKey("Msg"))//{//    Msg = parameters.GetValue<string>("Msg");//}//if (parameters.ContainsKey("UserId"))//{//    UserId = parameters.GetValue<string>("UserId");//}}}
}

注册 对话框服务并重写初始化方法

App.xaml.cs 

using Prism.Ioc;
using Prism.Modularity;
using Prism.Services.Dialogs;
using Prism.Unity;
using PrismWpfApp.ViewModels;
using PrismWpfApp.Views;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Threading.Tasks;
using System.Windows;namespace PrismWpfApp
{/// <summary>/// App.xaml 的交互逻辑/// </summary>public partial class App : PrismApplication{/// <summary>/// 提供主窗口的对象/// </summary>/// <returns></returns>/// <exception cref="NotImplementedException"></exception>protected override Window CreateShell(){//打开第一个窗口 ModuleWindowreturn Container.Resolve<MainWindow>();//return Container.Resolve<ModuleWindow>();//return Container.Resolve<LoginWindow>();//return new MainWindow();}/// <summary>/// 业务中所有需要注入的对象，在这个方法里注册/// </summary>/// <param name="containerRegistry"></param>/// <exception cref="NotImplementedException"></exception>protected override void RegisterTypes(IContainerRegistry containerRegistry){//注册 导航 RegisterForNavigationcontainerRegistry.RegisterForNavigation<UserControlA>();containerRegistry.RegisterForNavigation<UserControlB>();containerRegistry.RegisterForNavigation<UserControlC>();//注册 对话框服务containerRegistry.RegisterDialog<DialogView, DialogViewModel>();containerRegistry.RegisterDialog<LoginUC, LoginUCViewModel>();}/// <summary>/// 添加模块(代码引用)/// </summary>/// <param name="moduleCatalog"></param>//protected override void ConfigureModuleCatalog(IModuleCatalog moduleCatalog)//{//    moduleCatalog.AddModule<ModuleAProfile>();//    moduleCatalog.AddModule<ModuleBProfile>();//    base.ConfigureModuleCatalog(moduleCatalog);//}/// <summary>/// 创建模块/// </summary>protected override IModuleCatalog CreateModuleCatalog(){return new DirectoryModuleCatalog() { ModulePath = @".\Modules" };}//protected override void OnStartup(StartupEventArgs e)//{//    base.OnStartup(e);//    if (new LoginWindow().ShowDialog() == true)//    {//        new MainWindow().ShowDialog();//    }//    Application.Current.Shutdown();//}/// <summary>/// 重写 初始化 方法/// </summary>protected override void OnInitialized(){try{var dialogService = Container.Resolve<IDialogService>();//如果没有登录就打开登录对话框dialogService.ShowDialog("LoginUC", calback =>{if (calback.Result != ButtonResult.OK){Environment.Exit(0);return;}base.OnInitialized();});}catch (Exception ex){}}}
}