问题标签 [visual-studio-2022]

我有一个问题，当我从 myListBox中取出项目并将它们转换为单行字符串时，它会复制最后一个项目。我的目标是让它只从 中获取项目ListBox，并将其转换为单行文本，用逗号 ( ,) 分隔。

我花了一段时间，但我在这个线程上找到了一些代码，它在大多数情况下都有效，但最后一项在转换为字符串时总是重复的。我正在使用的代码是：

我有一种感觉，它必须处理删除逗号的代码，因为它是一个再次&=调用itemDim 的代码。但我似乎无法弄清楚该怎么做。

输出示例如下所示：Item1,Item2,Item3,Item3

当我只想要这个时：Item1,Item2,Item3

我尝试使用 Visual Studio 2022 Preview 3 中最新的 C# 10 功能。编译器无法识别所需的新关键字或字段。全局使用似乎有效。

空参数检查不编译：

我还尝试将语言版本设置为在 .csproj 中预览：

有没有我错过的设置？

我在 Visual Studio 2022 预览版中编码，我需要 HTML 的实时服务器扩展。它适用于 vs 2019 及更早版本，但不适用于 vs 2022 预览版。

有没有办法在 vs 2022 预览版中使用实时服务器扩展？

/std::c++latest以下代码在 VS2022 / v143模式下无法编译。

它可以与 GCC、Clang 和旧版本的 MSVC 一起编译。这是一个已知的编译器错误吗？或者它不是一个错误？

见：https ://godbolt.org/z/Yvx5bGd9K

你能弄清楚问题是什么吗？

我已经尝试了一些修复，但问题仍然存在。

刚开始尝试 VS2022 Preview 3。我只是注意到它没有显示/突出显示任何缺失的引用。在您构建项目之前，我们对丢失的引用一无所知。

请参阅随附的屏幕截图。

有没有人对这个问题有任何想法或有任何补救措施？我是否缺少任何配置？

感谢您在这方面的反馈。

我从模板创建了一个标准的 Blazor WASM 项目，其中包含个人用户帐户、托管 ASP.NET 和配置为 Https，检查了渐进式 Web 应用程序。

运行项目，我在开发工具中得到了这个：

`crit: Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100] 未处理的异常渲染组件：无法从 '_configuration/Wtf.Client' createUserManager@https://localhost:44344/_content/Microsoft.AspNetCore 加载设置。 Components.WebAssembly.Authentication/AuthenticationService.js:2:288346

Microsoft.JSInterop.JSException：无法从“_configuration/Wtf.Client”中加载设置 createUserManager@https://localhost:44344/_content/Microsoft.AspNetCore.Components.WebAssembly.Authentication/AuthenticationService.js:2:288346

在 Microsoft.JSInterop.JSRuntime.d__161[[System.Object, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].MoveNext() in Microsoft.JSInterop.dll:token 0x60000b3+0x156 at Microsoft.JSInterop.JSRuntimeExtensions.InvokeVoidAsync(IJSRuntime jsRuntime, String identifier, Object[] args) in Microsoft.JSInterop.dll:token 0x6000049+0x84 at Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationService3.d__27[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState，Microsoft.AspNetCore.Components.WebAssembly.Authentication，版本=6.0.0.0，文化=中性，PublicKeyToken=adb9793829ddae60]，[Microsoft.AspNetCore.Components.WebAssembly .Authentication.RemoteUserAccount，Microsoft.AspNetCore.Components.WebAssembly.Authentication，版本=6.0.0.0，Culture=neutral，PublicKeyToken=adb9793829ddae60]，[Microsoft.AspNetCore.Components.WebAssembly.Authentication.ApiAuthorizationProviderOptions，Microsoft.AspNetCore.Components.WebAssembly .Authentication, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext() in Microsoft.AspNetCore.Components.WebAssembly.Authentication.dll:token 0x6000122+0x95 at Microsoft.AspNetCore.Components.WebAssembly.Authentication。远程认证服务3.<GetAuthenticatedUser>d__26[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteUserAccount, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.AspNetCore.Components.WebAssembly.Authentication.ApiAuthorizationProviderOptions, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext() in Microsoft.AspNetCore.Components.WebAssembly.Authentication.dll:token 0x6000120+0x7d at Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationServiceAuthorization.dll:token 0x6000043+0xfd at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task) in Microsoft.AspNetCore.Components.dll:token 0x60000a5+0x7e at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync()。 AspNetCore.Components.dll:token 0x60000a3+0x113 at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle, ComponentState owningComponentState) in Microsoft.AspNetCore.Components.dll:token 0x6000285+0x65 blazor.webassembly.js:1: 30848 Cookie“PHPSESSID”将很快被视为针对“https://localhost:44344/css/open-iconic/font/fonts/open-iconic.woff”的跨站点 cookie，因为该方案不匹配。open-iconic.woff 暴击：Microsoft.AspNetCore.Components.WebAssembly.Rendering。

Microsoft.JSInterop.JSException：无法从“_configuration/Wtf.Client”中加载设置 createUserManager@https://localhost:44344/_content/Microsoft.AspNetCore.Components.WebAssembly.Authentication/AuthenticationService.js:2:288346

在 Microsoft.JSInterop.JSRuntime.d__161[[System.Object, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].MoveNext() in Microsoft.JSInterop.dll:token 0x60000b3+0x156 at Microsoft.JSInterop.JSRuntimeExtensions.InvokeVoidAsync(IJSRuntime jsRuntime, String identifier, Object[] args) in Microsoft.JSInterop.dll:token 0x6000049+0x84 at Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationService3.d__27[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState，Microsoft.AspNetCore.Components.WebAssembly.Authentication，版本=6.0.0.0，文化=中性，PublicKeyToken=adb9793829ddae60]，[Microsoft.AspNetCore.Components.WebAssembly .Authentication.RemoteUserAccount，Microsoft.AspNetCore.Components.WebAssembly.Authentication，版本=6.0.0.0，Culture=neutral，PublicKeyToken=adb9793829ddae60]，[Microsoft.AspNetCore.Components.WebAssembly.Authentication.ApiAuthorizationProviderOptions，Microsoft.AspNetCore.Components.WebAssembly .Authentication, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext() in Microsoft.AspNetCore.Components.WebAssembly.Authentication.dll:token 0x6000122+0x95 at Microsoft.AspNetCore.Components.WebAssembly.Authentication。远程认证服务3.<GetAuthenticatedUser>d__26[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteUserAccount, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.AspNetCore.Components.WebAssembly.Authentication.ApiAuthorizationProviderOptions, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext() in Microsoft.AspNetCore.Components.WebAssembly.Authentication.dll:token 0x6000120+0x7d at Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationService3.d__25[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState，Microsoft.AspNetCore.Components.WebAssembly.Authentication，版本=6.0.0.0，文化=中性，PublicKeyToken=adb9793829ddae60]，[Microsoft.AspNetCore.Components.WebAssembly .Authentication.RemoteUserAccount，Microsoft.AspNetCore.Components.WebAssembly.Authentication，版本=6.0.0.0，Culture=neutral，PublicKeyToken=adb9793829ddae60]，[Microsoft.AspNetCore.Components.WebAssembly.Authentication.ApiAuthorizationProviderOptions，Microsoft.AspNetCore.Components.WebAssembly .Authentication, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext() in Microsoft.AspNetCore.Components.WebAssembly.Authentication.dll:token 0x600011e+0xa7 at Microsoft.AspNetCore.Components.WebAssembly.Authentication。 RemoteAuthenticationService`3.d__17[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState，Microsoft.AspNetCore.Components.WebAssembly.Authentication，版本=6.0.0.0，Culture=neutral，PublicKeyToken=adb9793829ddae60]，[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteUserAccount，Microsoft。 AspNetCore.Components.WebAssembly.Authentication，版本=6.0.0.0，Culture=neutral，PublicKeyToken=adb9793829ddae60]，[Microsoft.AspNetCore.Components.WebAssembly.Authentication.ApiAuthorizationProviderOptions，Microsoft.AspNetCore.Components.WebAssembly.Authentication，版本=6.0。 0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext() 在 Microsoft.AspNetCore.Components.WebAssembly.Authentication.dll: 令牌 0x6000110+0x63 在 Microsoft.AspNetCore.Components.Authorization.AuthorizeViewCore.OnParametersSetAsync() 在 Microsoft.AspNetCore 。组件。Authorization.dll:token 0x6000043+0xfd at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task) in Microsoft.AspNetCore.Components.dll:token 0x60000a5+0x7e at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle , ComponentState owningComponentState) in Microsoft.AspNetCore.Components.dll:token 0x6000285+0x65 blazor.webassembly.js:1:30848 crit: Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100] 未处理的异常渲染组件：无法加载来自“_configuration/Wtf.Client”的设置 createUserManager@https://localhost:44344/_content/Microsoft.AspNetCore.Components.WebAssembly.Authentication/AuthenticationService.js:2:288346CallStateHasChangedOnAsyncCompletion(Task task) in Microsoft.AspNetCore.Components.dll:token 0x60000a5+0x7e at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle, ComponentState owningComponentState) in Microsoft.AspNetCore.Components.dll:token 0x6000285+0x65 blazor.webassembly.js:1:30848 暴击：Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100] 未处理的异常渲染组件：无法从“_configuration/Wtf.Client”加载设置 createUserManager@https://localhost: 44344/_content/Microsoft.AspNetCore.Components.WebAssembly.Authentication/AuthenticationService.js:2:288346CallStateHasChangedOnAsyncCompletion(Task task) in Microsoft.AspNetCore.Components.dll:token 0x60000a5+0x7e at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle, ComponentState owningComponentState) in Microsoft.AspNetCore.Components.dll:token 0x6000285+0x65 blazor.webassembly.js:1:30848 暴击：Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100] 未处理的异常渲染组件：无法从“_configuration/Wtf.Client”加载设置 createUserManager@https://localhost: 44344/_content/Microsoft.AspNetCore.Components.WebAssembly.Authentication/AuthenticationService.js:2:288346Microsoft.AspNetCore.Components.dll 中的 ComponentState owningComponentState)：token 0x6000285+0x65 blazor.webassembly.js:1:30848 暴击：Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100] 未处理的异常渲染组件：无法加载设置来自'_configuration/Wtf.Client' createUserManager@https://localhost:44344/_content/Microsoft.AspNetCore.Components.WebAssembly.Authentication/AuthenticationService.js:2:288346Microsoft.AspNetCore.Components.dll 中的 ComponentState owningComponentState)：token 0x6000285+0x65 blazor.webassembly.js:1:30848 暴击：Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100] 未处理的异常渲染组件：无法加载设置来自'_configuration/Wtf.Client' createUserManager@https://localhost:44344/_content/Microsoft.AspNetCore.Components.WebAssembly.Authentication/AuthenticationService.js:2:288346身份验证/AuthenticationService.js:2:288346身份验证/AuthenticationService.js:2:288346

Microsoft.JSInterop.JSException：无法从“_configuration/Wtf.Client”中加载设置 createUserManager@https://localhost:44344/_content/Microsoft.AspNetCore.Components.WebAssembly.Authentication/AuthenticationService.js:2:288346

在 Microsoft.JSInterop.JSRuntime.d__161[[System.Object, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].MoveNext() in Microsoft.JSInterop.dll:token 0x60000b3+0x156 at Microsoft.JSInterop.JSRuntimeExtensions.InvokeVoidAsync(IJSRuntime jsRuntime, String identifier, Object[] args) in Microsoft.JSInterop.dll:token 0x6000049+0x84 at Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationService3.d__27[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState，Microsoft.AspNetCore.Components.WebAssembly.Authentication，版本=6.0.0.0，文化=中性，PublicKeyToken=adb9793829ddae60]，[Microsoft.AspNetCore.Components.WebAssembly .Authentication.RemoteUserAccount，Microsoft.AspNetCore.Components.WebAssembly.Authentication，版本=6.0.0.0，Culture=neutral，PublicKeyToken=adb9793829ddae60]，[Microsoft.AspNetCore.Components.WebAssembly.Authentication.ApiAuthorizationProviderOptions，Microsoft.AspNetCore.Components.WebAssembly .Authentication, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext() in Microsoft.AspNetCore.Components.WebAssembly.Authentication.dll:token 0x6000122+0x95 at Microsoft.AspNetCore.Components.WebAssembly.Authentication。远程认证服务3.<GetAuthenticatedUser>d__26[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteUserAccount, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.AspNetCore.Components.WebAssembly.Authentication.ApiAuthorizationProviderOptions, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext() in Microsoft.AspNetCore.Components.WebAssembly.Authentication.dll:token 0x6000120+0x7d at Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationService3.d__25[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState，Microsoft.AspNetCore.Components.WebAssembly.Authentication，版本=6.0.0.0，文化=中性，PublicKeyToken=adb9793829ddae60]，[Microsoft.AspNetCore.Components.WebAssembly .Authentication.RemoteUserAccount，Microsoft.AspNetCore.Components.WebAssembly.Authentication，版本=6.0.0.0，Culture=neutral，PublicKeyToken=adb9793829ddae60]，[Microsoft.AspNetCore.Components.WebAssembly.Authentication.ApiAuthorizationProviderOptions，Microsoft.AspNetCore.Components.WebAssembly .Authentication, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext() in Microsoft.AspNetCore.Components.WebAssembly.Authentication.dll:token 0x600011e+0xa7 at Microsoft.AspNetCore.Components.WebAssembly.Authentication。远程认证服务3.<GetAuthenticationStateAsync>d__17[[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteAuthenticationState, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.AspNetCore.Components.WebAssembly.Authentication.RemoteUserAccount, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[Microsoft.AspNetCore.Components.WebAssembly.Authentication.ApiAuthorizationProviderOptions, Microsoft.AspNetCore.Components.WebAssembly.Authentication, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60]].MoveNext() in Microsoft.AspNetCore.Components.WebAssembly.Authentication.dll:token 0x6000110+0x63 at Microsoft.AspNetCore.Components.Authorization.AuthorizeViewCore.OnParametersSetAsync() in Microsoft.AspNetCore.Components.Authorization.dll:token 0x6000043+0xfd at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task) in Microsoft.AspNetCore.Components.dll:token 0x60000a5+0x7e at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync() in Microsoft.AspNetCore.Components.dll:token 0x60000a3+0x113 at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle, ComponentState owningComponentState) in Microsoft.AspNetCore.Components.dll:token 0x6000285+0x65

有人知道这里发生了什么吗？我确实安装了 Mads Kristensen 的“The Essentials”扩展，如果这很重要的话。

I've a standalone React project. I'm using VisualStudio 2022 Preview 2 as the IDE. Every time I launches the react webapp by clicking on green play icon in VS, It launches an Incognito Chrome window.

Is there any way I can launch the application in normal Chrome window?

This is the launch.json file inside .vscode folder

我正在尝试使用 SQL Server 连接到我的 ASP.NET Core Web API 应用程序（Visual Studio 2022 Preview 中的 .NET 6）。并且我尝试像以前Startup一样使用以下代码来配置类中的连接字符串。

但是在 .NET 6 中，我认识到Startup类Program被合并为一个类。并且上面的代码在 .NET 6AddDbContext中不可用。无法识别。那么您对此次更新以及如何在 .NET 6 中配置连接字符串有任何想法或文档吗？

如果我在 Visual Studio 2019 中打开一个 .NET 5 项目，我看到代码分析如下。

现在，如果我在 Visual Studio 2022 Preview 中打开同一个项目，我就再也看不到了。

我错过了什么？