我的應用程式使用非常舊的 Prism v4.x 參考并添加了區域管理器和模塊時遇到問題。結果，它顯示了兩個視窗，并且它們鏈接在一起，因此對第一個螢屏中的第二個顯示執行任何操作或第一個螢屏未完全加載。
App.xaml.cs 檔案：
using System;
using System.Windows;
namespace WpfTestApp
{
/// <summary>
/// Interaction logic for App.xaml
/// </summary>
public partial class App : Application
{
[STAThread]
public static void Main(string[] args)
{
try
{
var app = new App();
app.InitializeComponent();
app.Run();
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "Fatal Exception occurred!");
}
}
/// <inheritdoc />
protected override void OnStartup(StartupEventArgs e)
{
try
{
base.OnStartup(e);
var bootstrapper = new AppBootstrapper();
bootstrapper.Run();
base.OnStartup(e);
}
catch (Exception ex)
{
try
{
MessageBox.Show(ex.ToString(), "App startup");
}
finally
{
Current.Shutdown();
}
}
}
}
}
AppBootstrapper.cs 檔案：
using System.Windows;
using Microsoft.Practices.Prism.Modularity;
using Microsoft.Practices.Prism.UnityExtensions;
using Microsoft.Practices.ServiceLocation;
namespace WpfTestApp
{
public class AppBootstrapper : UnityBootstrapper
{
protected override DependencyObject CreateShell()
{
InitializeModules();
return ServiceLocator.Current.GetInstance<MainWindow>();
}
/// <summary>
/// Runs the initialization steps to ensure that the shell is ready to be displayed. The shell application
/// object is created and set as the main window of the application.
/// </summary>
protected override void InitializeShell()
{
base.InitializeShell();
App.Current.MainWindow = (Window)Shell;
App.Current.MainWindow.Show();
}
protected override void ConfigureModuleCatalog()
{
ModuleCatalog.AddModule(new ModuleInfo()
{
ModuleName = OutlookModule.NAME,
ModuleType = typeof(OutlookModule).AssemblyQualifiedName,
InitializationMode = InitializationMode.WhenAvailable
});
}
}
}
虛擬模塊 OutlookModule.cs 檔案：
using Microsoft.Practices.Prism.Modularity;
using Microsoft.Practices.Prism.Regions;
using Microsoft.Practices.Unity;
namespace WpfTestApp
{
[Module(ModuleName = NAME)]
public class OutlookModule : IModule
{
internal const string NAME = "OutlookModule";
public OutlookModule(IUnityContainer container, IRegionManager regionManager)
{
}
public void Initialize()
{
}
}
}
一個非標準的 WPF 專案檔案：
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup Label="Globals">
<SccProjectName>SAK</SccProjectName>
<SccProvider>SAK</SccProvider>
<SccAuxPath>SAK</SccAuxPath>
<SccLocalPath>SAK</SccLocalPath>
</PropertyGroup>
<PropertyGroup>
<TargetFramework>net48</TargetFramework>
<OutputType>WinExe</OutputType>
<RootNamespace>SpreadsheetOwnerErrorSampleV3</RootNamespace>
<AssemblyName>SpreadsheetOwnerErrorSampleV3</AssemblyName>
<GenerateAssemblyInfo>False</GenerateAssemblyInfo>
<ExpressionBlendVersion>12.0.51020.0</ExpressionBlendVersion>
<OutputPath>..\bin\</OutputPath>
<StartupObject>WpfTestApp.App</StartupObject>
<EnableDefaultEmbeddedResourceItems>false</EnableDefaultEmbeddedResourceItems>
<EnableDefaultCompileItems>false</EnableDefaultCompileItems>
<Prefer32Bit>true</Prefer32Bit>
<DebugType>full</DebugType>
<DebugSymbols>True</DebugSymbols>
</PropertyGroup>
<ItemGroup>
<None Remove="WpfTestApp.csproj.vspscc" />
</ItemGroup>
<ItemGroup>
<Page Include="App.xaml">
<Generator>MSBuild:Compile</Generator>
<SubType>Designer</SubType>
</Page>
<Compile Include="App.xaml.cs">
<DependentUpon>App.xaml</DependentUpon>
<SubType>Code</SubType>
</Compile>
<Compile Include="AppBootstrapper.cs" />
<Compile Include="OutlookModule.cs" />
<Page Include="MainWindow.xaml">
<Generator>MSBuild:Compile</Generator>
<SubType>Designer</SubType>
</Page>
<Compile Include="MainWindow.xaml.cs">
<DependentUpon>MainWindow.xaml</DependentUpon>
<SubType>Code</SubType>
</Compile>
</ItemGroup>
<ItemGroup>
<AppDesigner Include="Properties\" />
</ItemGroup>
<ItemGroup>
<Reference Include="System" />
<Reference Include="Microsoft.CSharp" />
<Reference Include="System.Core" />
<Reference Include="System.Xaml" />
<Reference Include="UIAutomationProvider" />
<Reference Include="WindowsBase" />
<Reference Include="PresentationCore" />
<Reference Include="PresentationFramework" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="Prism.Desktop.Net40" Version="4.1.1" />
<PackageReference Include="Prism.UnityExtensions.Net40" Version="4.1.1" />
<PackageReference Include="System.Windows.Interactivity.WPF" Version="2.0.20525" />
<PackageReference Include="Unity" Version="2.1.505" />
</ItemGroup>
<ItemGroup>
<BootstrapperPackage Include=".NETFramework,Version=v4.0">
<Visible>False</Visible>
<ProductName>Microsoft .NET Framework 4 (x86 and x64)</ProductName>
<Install>true</Install>
</BootstrapperPackage>
</ItemGroup>
<PropertyGroup>
<LanguageTargets>$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Bin\Microsoft.CSharp.targets</LanguageTargets>
<AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
</PropertyGroup>
<Target Name="WorkaroundForXAMLIntellisenseBuildIssue" AfterTargets="_CheckCompileDesignTimePrerequisite">
<PropertyGroup>
<BuildingProject>false</BuildingProject>
</PropertyGroup>
</Target>
<Choose>
<When Condition="'$(MSBuildProjectExtension)' != '.csproj' and '$(MSBuildProjectExtension)' != '.vbproj'">
<PropertyGroup>
<LanguageTargets Condition="Exists('$(MSBuildProjectDirectory)\$(AssemblyName).csproj')">$(MSBuildToolsPath)\Microsoft.CSharp.targets</LanguageTargets>
<LanguageTargets Condition="Exists('$(MSBuildProjectDirectory)\$(AssemblyName).vbproj')">$(MSBuildToolsPath)\Microsoft.VisualBasic.targets</LanguageTargets>
</PropertyGroup>
</When>
</Choose>
</Project>
請幫助確定為什么加載了兩個 Windows，而它應該只是第一個。我知道使用的棱鏡已經過時了，我們將來會升級。但是，我需要一個基于此版本的作業示例。所有這些遺留代碼都是基于不久前的休閑文章實作的：
http://www.infragistics.com/community/blogs/blagunas/archive/2012/09/13/xamdockmanager-a-prism-regionadapter.aspx http://brianlagunas.com/xamdockmanageran-updated-prism-region-adapter / http://brianlagunas.com/xamdockmanager-prism-region-adapter-update-3/
在 CreateShell 或更高版本上執行 app.Run() 期間從 App.xaml.cs Main 方法加載兩個視窗。但是，這需要按照檔案適用于應用程式： https ://prismlibrary.com/docs/wpf/legacy/Initializing.html
提前致謝
uj5u.com熱心網友回復：
正如@mm8 建議的那樣，問題似乎出在 App.xaml 本身中，默認情況下它會在主視圖中注入啟動行：
<Application x:Class="WpfTestApp.App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WpfTestApp"
!-> StartupUri="MainWindow.xaml">
<Application.Resources>
</Application.Resources>
</Application>
轉載請註明出處，本文鏈接：https://www.uj5u.com/caozuo/413842.html
標籤：