如何设置目标net7.0 -windows？

Question

我尝试改变

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

  <PropertyGroup>
    <OutputType>WinExe</OutputType>
    <TargetFramework>net6.0-windows</TargetFramework>
    <UseWindowsForms>true</UseWindowsForms>
  </PropertyGroup>

到

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

  <PropertyGroup>
    <OutputType>WinExe</OutputType>
    <TargetFramework>net7.0-windows</TargetFramework>
    <UseWindowsForms>true</UseWindowsForms>
  </PropertyGroup>

但构建错误。如何设定net7.0-windows成功目标？

Severity    Code    Description Project File    Line    Suppression State
Error   NETSDK1045  The current .NET SDK does not support targeting .NET 7.0.  Either target .NET 6.0 or lower, or use a version of the .NET SDK that supports .NET 7.0.    acore   C:\Program Files\dotnet\sdk\6.0.201\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.TargetFrameworkInference.targets   144 

C:\Users\donhu>dotnet --info
.NET SDK (reflecting any global.json):
 Version:   7.0.100-preview.2.22153.17
 Commit:    9c52c56c13

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.22000
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\7.0.100-preview.2.22153.17\

Host (useful for support):
  Version: 7.0.0-preview.2.22152.2
  Commit:  e24f66dff0

.NET SDKs installed:
  6.0.201 [C:\Program Files\dotnet\sdk]
  7.0.100-preview.2.22153.17 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 3.1.23 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 5.0.15 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.3 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 7.0.0-preview.2.22153.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 3.1.23 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 5.0.15 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.3 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 7.0.0-preview.2.22152.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 3.1.23 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 5.0.15 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.3 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 7.0.0-preview.2.22153.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

To install additional .NET runtimes or SDKs:
  https://aka.ms/dotnet-download

C:\Users\donhu>

相关： https: //learn.microsoft.com/en-us/visualstudio/ide/visual-studio-multi-targeting-overview ?view=vs-2022

Answer 1

根本不需要安装 VS Preview。转到“选项 -> 预览功能”并启用“使用 .NET SDK 预览（需要重新启动）：”选项。

Answer 2

感谢 Maytham（向我推荐 Visual Studio 2022 预览版）和 Jon Skeet（关于如何获取 Visual Studio 2022 预览版，与 Visual Studio 2019 预览版下载不同）。

解决方案：在 Visual Studio 2022 中，选择预览通道。然后更新到VS 2022预览版，然后我们可以轻松选择Target Framework .NET 7.0。