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WPF prism framework
2022-06-25 10:21:00 【@@Mr.Fu】
Prism frame
1、 About Prism frame
Official address ：http://prismlibrary.com
Official source code ：https://github.com/PrismLibrary/Prism
edition ：8.1
2、 Functional specifications
Prism Provides an implementation of a set of design patterns , It is helpful to write well structured maintainable XAML Applications .
Include MVVM Dependency injection command Event aggregator
Prism Weight Loss
Autofac 、Dryloc 、 Mef 、Niniject 、StruyctureMap、Unity.
3、Prism Key procedures
Prism.Core Realization MVVM Core functions , Belongs to a platform independent project .
Prism.Wpf Contains DialogService【 Popup 】 Region【 register 】 Module 【 modular 】 Navigation【 Navigation 】 Others WPF function .
Prism.Unity Prism.Unity.Wpf.dll Prism.Dryloc.Wpf.dll
4、 obtain Prism frame
Prism.dll Prism.core
Prism.Wpf.dll Prism.Wpf
Prism.Unity.Wpf.dll Prism.Unity
Prism.Dryloc.Wpf.dll Prism.Dryloc
5、 Data processing , Five ways of data notification
The new class ：MainViewModel Inherit ：BindableBase
using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.Text;
namespace WpfApp2
{
public class MainViewModel : BindableBase
{
private int _value = 100;
public int Value
{
get { return _value; }
set
{
// Five ways of notification
// The first way
//SetProperty(ref _value, value);
// The second way
//this.OnPropertyChanged(new System.ComponentModel.PropertyChangedEventArgs("Value"));
// The third way
//this.RaisePropertyChanged();
// The fourth way Value ： Other properties can be notified
SetProperty(ref _value, value, "Value");
// The fifth way
SetProperty(ref _value, value, OnPropertyChanged);
}
}
public void OnPropertyChanged()
{
}
public MainViewModel()
{
}
}
}
xaml Code ：
<Window x:Class="WpfApp2.MainWindow"
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:WpfApp2"
mc:Ignorable="d"
Title="MainWindow" Height="450" Width="800">
<Window.DataContext>
<local:MainViewModel></local:MainViewModel>
</Window.DataContext>
<Grid>
<StackPanel>
<TextBlock Text="{Binding Value}"></TextBlock>
</StackPanel>
</Grid>
</Window>
6、 Behavioral processing
1、Prism The behavior of
DelegateCommand
Basic usage ：
The new class ：MainViewModel Inherit BindableBase
using Prism.Commands;
using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Input;
namespace WpfApp4
{
public class MainViewModel:BindableBase
{
private string _value = "Hellow Word!";
public ICommand BtnCommand { get => new DelegateCommand(doExecute); }
public string Value
{
get { return _value; }
set {
SetProperty(ref _value, value);
}
}
public MainViewModel()
{
}
public void doExecute()
{
this.Value = "Fuck You!";
}
}
}
Check status
The first check state ：
using Prism.Commands;
using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Input;
namespace WpfApp4
{
public class MainViewModel:BindableBase
{
private string _value = "Hellow Word!";
public DelegateCommand BtncheckCommand { get; }
public string Value
{
get { return _value; }
set {
SetProperty(ref _value, value);
// Trigger the executable check logic related to the command
BtncheckCommand.RaiseCanExecuteChanged();
}
}
public MainViewModel()
{
BtncheckCommand = new DelegateCommand(doExecute,doCheckExecute);
}
public void doExecute()
{
this.Value = "Fuck You!";
}
public bool doCheckExecute()
{
return this.Value == "Hellow Word!";
}
}
}
The second check state ：
using Prism.Commands;
using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Input;
namespace WpfApp4
{
public class MainViewModel:BindableBase
{
private string _value = "Hellow Word!";
public DelegateCommand BtncheckCommand { get; }
public string Value
{
get { return _value; }
set {
SetProperty(ref _value, value);
}
}
public MainViewModel()
{
//ObservesProperty : Listen for changes in a property , When the value of this attribute changes , Do a status check
// When Value Take the initiative to trigger a status check when a change occurs
// You can listen to multiple properties Back .ObservesProperty(()=>Value)
BtncheckCommand = new DelegateCommand(doExecute, doCheckExecute).ObservesProperty(()=>Value);
} Well
public void doExecute()
{
this.Value = "Fuck You!";
}
public bool doCheckExecute()
{
return this.Value == "Hellow Word!";
}
}
}
The third way to check ：
using Prism.Commands;
using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Input;
namespace WpfApp4
{
public class MainViewModel:BindableBase
{
private string _value = "Hellow Word!";
public ICommand BtnCommand { get => new DelegateCommand(doExecute); }
public DelegateCommand BtncheckCommand { get; }
public string Value
{
get { return _value; }
set {
SetProperty(ref _value, value);
}
}
private bool _state;
public bool State
{
get { return Value == "Hellow Word!"; }
set {
SetProperty(ref _state, value);
}
}
public MainViewModel()
{
// The third way to check adopt ObservesCanExecute Make an attribute value observation , Conduct dynamic state processing
BtncheckCommand = new DelegateCommand(doExecute).ObservesCanExecute(() => State);
}
public void doExecute()
{
this.Value = "Fuck You!";
this.State =!this.State;
}
}
}
xaml Code ：
<Window x:Class="WpfApp4.MainWindow"
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:WpfApp4"
mc:Ignorable="d"
Title="MainWindow" Height="450" Width="800">
<Window.DataContext>
<local:MainViewModel></local:MainViewModel>
</Window.DataContext>
<Grid>
<StackPanel>
<TextBlock Text="{Binding Value}"></TextBlock>
<Button Content=" Basic commands " Height="30" Command="{Binding BtnCommand}"></Button>
<Button Content=" Property check command " Height="30" Command="{Binding BtncheckCommand}"></Button>
</StackPanel>
</Grid>
</Window>
Asynchronous processing
using Prism.Commands;
using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Input;
namespace WpfApp4
{
public class MainViewModel:BindableBase
{
private string _value = "Hellow Word!";
public ICommand BtnAsyncCommand { get => new DelegateCommand(doExecuteAsync); }
public DelegateCommand BtncheckCommand { get; }
public string Value
{
get { return _value; }
set {
SetProperty(ref _value, value);
}
}
public MainViewModel()
{
}
public async void doExecuteAsync()
{
await Task.Delay(5000);
this.Value = " bye ！";
}
}
}
xaml Code ：
<Window x:Class="WpfApp4.MainWindow"
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:WpfApp4"
mc:Ignorable="d"
Title="MainWindow" Height="450" Width="800">
<Window.DataContext>
<local:MainViewModel></local:MainViewModel>
</Window.DataContext>
<Grid>
<StackPanel>
<TextBlock Text="{Binding Value}"></TextBlock>
<Button Content=" Asynchronous command " Height="30" Command="{Binding BtnAsyncCommand}"></Button>
</StackPanel>
</Grid>
</Window>
The generic parameter
using Prism.Commands;
using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Input;
namespace WpfApp4
{
public class MainViewModel:BindableBase
{
private string _value = "Hellow Word!";
public ICommand BtnAsyncCommand { get => new DelegateCommand<string>(doExecuteAsync); }
public DelegateCommand BtncheckCommand { get; }
public string Value
{
get { return _value; }
set {
SetProperty(ref _value, value);
// Trigger the executable check logic related to the command
// BtncheckCommand.RaiseCanExecuteChanged();
}
}
public async void doExecuteAsync(string str)
{
await Task.Delay(5000);
this.Value = str;
}
}
}
xaml Code ：
<Window x:Class="WpfApp4.MainWindow"
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:WpfApp4"
mc:Ignorable="d"
Title="MainWindow" Height="450" Width="800">
<Window.DataContext>
<local:MainViewModel></local:MainViewModel>
</Window.DataContext>
<Grid>
<StackPanel>
<TextBlock Text="{Binding Value}"></TextBlock>
<Button Content=" Asynchronous command " Height="30" Command="{Binding BtnAsyncCommand}" CommandParameter=" bye "></Button>
</StackPanel>
</Grid>
</Window>
Event command [ Event to order ] InvokeCommandAction
The new class ：MainViewModel:BindableBase
using Prism.Commands;
using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Input;
namespace WpfApp4
{
public class MainViewModel:BindableBase
{
public ICommand BtnEventCommand { get => new DelegateCommand<object>(doEventExecute); }
public void doEventExecute(object args)
{
}
}
}
xaml Code ：
<Window x:Class="WpfApp4.MainWindow"
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:i="http://schemas.microsoft.com/xaml/behaviors"
xmlns:prism="http://prismlibrary.com/"
xmlns:local="clr-namespace:WpfApp4"
mc:Ignorable="d"
Title="MainWindow" Height="450" Width="800">
<Window.DataContext>
<local:MainViewModel></local:MainViewModel>
</Window.DataContext>
<Grid>
<StackPanel>
<TextBlock Text="{Binding Value}"></TextBlock>
<Button Content=" Basic commands " Height="30" Command="{Binding BtnCommand}"></Button>
<Button Content=" Property check command " Height="30" Command="{Binding BtncheckCommand}"></Button>
<Button Content=" Asynchronous command " Height="30" Command="{Binding BtnAsyncCommand}" CommandParameter=" bye "></Button>
<ComboBox SelectedIndex="0">
<i:Interaction.Triggers>
<i:EventTrigger EventName="SelectionChanged">
<prism:InvokeCommandAction Command="{Binding BtnEventCommand}"
TriggerParameterPath=""></prism:InvokeCommandAction>
</i:EventTrigger>
</i:Interaction.Triggers>
<ComboBoxItem Content="111"></ComboBoxItem>
<ComboBoxItem Content="222"></ComboBoxItem>
<ComboBoxItem Content="333"></ComboBoxItem>
<ComboBoxItem Content="444"></ComboBoxItem>
</ComboBox>
</StackPanel>
</Grid>
</Window>
remarks ：
The top refers to two namespaces ：
xmlns:i="http://schemas.microsoft.com/xaml/behaviors"
xmlns:prism="http://prismlibrary.com/"
Prism Frame reference initialization
PrismBootstrapper starter
1、 newly build Startup class , Inherit ：PrismBootstrapper
using Prism.Ioc;
using Prism.Unity;
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;
namespace WpfApp5
{
public class Startup : PrismBootstrapper
{
/// <summary>
/// Return to one Shell ： main window
/// </summary>
/// <returns></returns>
/// <exception cref="NotImplementedException"></exception>
protected override DependencyObject CreateShell()
{
throw new NotImplementedException();
}
/// <summary>
///
/// </summary>
/// <param name="containerRegistry"></param>
/// <exception cref="NotImplementedException"></exception>
protected override void RegisterTypes(IContainerRegistry containerRegistry)
{
throw new NotImplementedException();
}
}
}
2、 take App.xaml code annotation
<Application x:Class="WpfApp5.App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WpfApp5">
<!--StartupUri="MainWindow.xaml" Comment out -->
<Application.Resources>
</Application.Resources>
</Application>
3、 stay App.xaml.cs Start... In the constructor
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Threading.Tasks;
using System.Windows;
namespace WpfApp5
{
/// <summary>
/// Interaction logic for App.xaml
/// </summary>
public partial class App : Application
{
public App()
{
new Startup().Run();
}
}
}
use PrismApplication starter
modify App.xaml Code
<prism:PrismApplication x:Class="WpfApp1.App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WpfApp1"
xmlns:prism="http://prismlibrary.com/">
<!--StartupUri="MainWindow.xaml" Comment out -->
<Application.Resources>
</Application.Resources>
</prism:PrismApplication>
remarks ： quote xmlns:prism="http://prismlibrary.com/"
Change the head and tail labels to ：prism:PrismApplication
App.xaml.cs Inherit PrismApplication, Code
using Prism.Ioc;
using Prism.Unity;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Threading.Tasks;
using System.Windows;
namespace WpfApp1
{
/// <summary>
/// Interaction logic for App.xaml
/// </summary>
public partial class App : PrismApplication
{
/// <summary>
/// Return to one shell 【 window 】
/// </summary>
/// <returns></returns>
/// <exception cref="NotImplementedException"></exception>
protected override Window CreateShell()
{
return Container.Resolve<MainWindow>();
}
protected override void RegisterTypes(IContainerRegistry containerRegistry)
{
}
}
}
be based on Prism Login jump of framework
App.xaml Code ：
<prism:PrismApplication x:Class="WpfApp1.App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WpfApp1"
xmlns:prism="http://prismlibrary.com/"
>
<!--StartupUri="MainWindow.xaml"-->
<Application.Resources>
</Application.Resources>
</prism:PrismApplication>
App.xaml.cs Code ：
using Prism.Ioc;
using Prism.Unity;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Threading.Tasks;
using System.Windows;
namespace WpfApp1
{
/// <summary>
/// Interaction logic for App.xaml
/// </summary>
public partial class App : PrismApplication
{
/// <summary>
/// Return to one shell 【 window 】
/// </summary>
/// <returns></returns>
/// <exception cref="NotImplementedException"></exception>
protected override Window CreateShell()
{
return Container.Resolve<MainWindow>();
}
/// <summary>
/// initialization shell main window
/// </summary>
/// <param name="shell"></param>
protected override void InitializeShell(Window shell)
{
var loginWindow = Container.Resolve<Login>();
if (loginWindow == null || loginWindow.ShowDialog() == false)
{
Application.Current.Shutdown();
}
}
protected override void RegisterTypes(IContainerRegistry containerRegistry)
{
}
}
}
Login code ：Login.xaml
<Window x:Class="WpfApp1.Login"
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:WpfApp1"
mc:Ignorable="d"
Title="Login" Height="450" Width="800">
<Grid>
<Button Click="Button_Click"></Button>
</Grid>
</Window>
Login.xaml.cs
using System;
using System.Collections.Generic;
using System.Text;
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.Shapes;
namespace WpfApp1
{
/// <summary>
/// Login.xaml Interaction logic of
/// </summary>
public partial class Login : Window
{
public Login()
{
InitializeComponent();
}
private void Button_Click(object sender, RoutedEventArgs e)
{
this.DialogResult = true;
}
}
}
MainWindow.xaml Code ：
<Window x:Class="WpfApp1.MainWindow"
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:WpfApp1"
mc:Ignorable="d"
Title="MainWindow" Height="450" Width="800">
<Grid>
</Grid>
</Window>
ViewModelLocator object To help carry out View And ViewModel The binding of
Standard status ：
AutoWireViewModel, Default behavior true
ViewModel In the same assembly as the view type
ViewModel be located .ViewModel In the child namespace
View in .Views In the child namespace
ViewModel The name corresponds to the view name , With “ViewModel” ending
The example code is as follows ：
New subfolder ：ViewModels/MainWindowViewModel class , The code is as follows ：
using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.Text;
namespace WpfApp6.ViewModels
{
public class MainWindowViewModel : BindableBase
{
private string _value = " Hellow Word";
public string Value
{
get { return _value; }
set
{
SetProperty(ref _value, value);
}
}
}
}
New subfolder ,Views/MainWindow.xaml, The code is as follows ：
<Window x:Class="WpfApp6.Views.MainWindow"
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:prism="http://prismlibrary.com/"
xmlns:local="clr-namespace:WpfApp6.Views"
mc:Ignorable="d"
Title="MainWindow" Height="450" Width="800">
<Grid>
<TextBlock Text="{Binding Value}"></TextBlock>
</Grid>
</Window>
Set boot entry ：
App.xaml, The code is as follows ：
<prism:PrismApplication x:Class="WpfApp6.App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WpfApp6"
xmlns:prism="http://prismlibrary.com/"
>
<Application.Resources>
</Application.Resources>
</prism:PrismApplication>
App.xaml.cs, The code is as follows ：
using Prism.Ioc;
using Prism.Unity;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Threading.Tasks;
using System.Windows;
namespace WpfApp6
{
/// <summary>
/// Interaction logic for App.xaml
/// </summary>
public partial class App : PrismApplication
{
protected override Window CreateShell()
{
return Container.Resolve<Views.MainWindow>();
}
protected override void RegisterTypes(IContainerRegistry containerRegistry)
{
}
}
}
The table of contents is as follows ：【 The new folder must conform to Framework requirements 】
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