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我正在尝试将 WPF 项目从 .NET Core 3.1 迁移到 .NET 5.0。我的项目使用默认属性文件 (user.config) 来存储一些应用程序数据。

项目代码：


    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            try
            {
                Properties.Settings.Default.test = "Edited";
                Properties.Settings.Default.Save();
            }
            catch (Exception e)
            {
                MessageBox.Show(e.ToString());
            }
        }
    }

发布项目后，我在尝试访问Properties.Settings.Default时收到System.IO.FileNotFoundException（找不到指定的文件）。

---------------------------

---------------------------
System.IO.FileNotFoundException: Не удается найти указанный файл. (0x80070002)

   at System.Reflection.RuntimeModule.GetFullyQualifiedName()

   at System.Reflection.RuntimeModule.get_Name()

   at System.Configuration.ClientConfigPaths..ctor(String exePath, Boolean includeUserConfig)

   at System.Configuration.ClientConfigPaths.GetPaths(String exePath, Boolean includeUserConfig)

   at System.Configuration.Internal.ConfigurationManagerInternal.System.Configuration.Internal.IConfigurationManagerInternal.get_ExeProductName()

   at System.Configuration.ApplicationSettingsBase.get_Initializer()

   at System.Configuration.ApplicationSettingsBase.CreateSetting(PropertyInfo propertyInfo)

   at System.Configuration.ApplicationSettingsBase.EnsureInitialized()

   at System.Configuration.ApplicationSettingsBase.get_Properties()

   at System.Configuration.SettingsBase.GetPropertyValueByName(String propertyName)

   at System.Configuration.SettingsBase.get_Item(String propertyName)

   at System.Configuration.ApplicationSettingsBase.GetPropertyValue(String propertyName)

   at System.Configuration.ApplicationSettingsBase.get_Item(String propertyName)

   at WpfApp1.Properties.Settings.get_test()

   at WpfApp1.MainWindow..ctor()
---------------------------
ОК   
---------------------------

该问题仅在使用单文件发布时发生。

我的发布属性：

<?xml version="1.0" encoding="utf-8"?>
<!--
https://go.microsoft.com/fwlink/?LinkID=208121. 
-->
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup>
    <Configuration>Release</Configuration>
    <Platform>Any CPU</Platform>
    <PublishDir>bin\Release\net5.0\publish\</PublishDir>
    <PublishProtocol>FileSystem</PublishProtocol>
    <TargetFramework>net5.0-windows</TargetFramework>
    <RuntimeIdentifier>win-x86</RuntimeIdentifier>
    <SelfContained>true</SelfContained>
    <PublishSingleFile>True</PublishSingleFile>
    <PublishReadyToRun>True</PublishReadyToRun>
    <PublishTrimmed>False</PublishTrimmed>
    <IncludeNativeLibrariesForSelfExtract>true</IncludeNativeLibrariesForSelfExtract>
  </PropertyGroup>
</Project>

设置类：

    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "16.8.1.0")]
    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase {
        
        private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
        
        public static Settings Default {
            get {
                return defaultInstance;
            }
        }
        
        [global::System.Configuration.UserScopedSettingAttribute()]
        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
        [global::System.Configuration.DefaultSettingValueAttribute("123")]
        public string test {
            get {
                return ((string)(this["test"]));
            }
            set {
                this["test"] = value;
            }
        }
    }

项目文件：

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>WinExe</OutputType>
    <TargetFramework>net5.0-windows</TargetFramework>
    <UseWPF>true</UseWPF>
    <TargetPlatformIdentifier>Windows</TargetPlatformIdentifier>
  </PropertyGroup>

  <ItemGroup>
    <Compile Update="Properties\Settings.Designer.cs">
      <DesignTimeSharedInput>True</DesignTimeSharedInput>
      <AutoGen>True</AutoGen>
      <DependentUpon>Settings.settings</DependentUpon>
    </Compile>
  </ItemGroup>

  <ItemGroup>
    <None Update="Properties\Settings.settings">
      <Generator>SettingsSingleFileGenerator</Generator>
      <LastGenOutput>Settings.Designer.cs</LastGenOutput>
    </None>
  </ItemGroup>

</Project>

注意 1：我检查了%userprofile%\appdata\local文件夹，它在启动应用程序后没有创建 user.config 文件。

注意 2：如果我将mscorrc.dll放到发布文件夹中，那么一切正常。 mscorrc.dll

4

1 回答 1

1

使用单文件发布时，.NET 5 处理旧设置时看起来存在错误。链接的 Github 问题表明，尝试读取任何设置，而不仅仅是用户设置，都会导致System.IO.FileNotFoundException. .NET 5.0 中不包含对此的修复。

从问题：

一种解决方法是设置<IncludeAllContentForSelfExtract>true</IncludeAllContentForSelfExtract>

从长远来看，无论如何您都必须迁移到 .NET Core 的配置系统。app.config并且user.config是可以预期的遗留技术和问题。

于 2020-11-16T10:59:37.300 回答