问题描述
我是一个长期的WPF(.Net Framework)开发人员，最终我第一次将脚趾插入.Net Core.我目前正在尝试将小型v4.7.2 WPF应用程序转换为.Net Core 3.1.该解决方案包含一个WPF应用程序项目和一个类库项目，每个项目只有少数几个类，因此我认为创建一个包含WPF应用程序和类库项目(均为.Net Core 3.1)的新解决方案会更容易，然后复制原始解决方案中的cs和xaml文件.但是我似乎是第一个障碍...
I'm a long time WPF (.Net Framework) developer finally dipping my toes into .Net Core for the first time. I'm currently trying to convert a small v4.7.2 WPF application to .Net Core 3.1. The solution contains a WPF app project and a class library project, with only a handful of classes each, so I decided it would be easier to create a new solution containing a WPF app and class library project (both .Net Core 3.1), then copy the cs and xaml files from the original solution. However I seem to be falling at the first hurdle...
许多类使用来自 System.Windows 命名空间的类型(和 System.Windows.Media ， System.Windows.Controls ，ETC).这些可以在WPF应用程序项目中很好地解决，但不能在类库中解决.我注意到WPF应用程序项目对框架"Microsoft.WindowsDesktop.App.Wpf"的引用，但是类库项目却没有，我认为这是我的问题.但是我一生都无法弄清楚如何将这个框架添加到项目中.我该怎么做?！
Many of the classes use types from the System.Windows namespace (and System.Windows.Media, System.Windows.Controls, etc). These resolve fine in the WPF app project but not the class library. I've noticed the WPF app project has a reference to the framework "Microsoft.WindowsDesktop.App.Wpf", but the class library project doesn't, which I assume is my problem. However I can't for the life of me figure out how to add this framework into the project. How do I do it?!
我在其他地方看到了将< UseWPF> true</UseWPF> 添加到类lib csproj文件的解决方案，但这没有效果.
I've seen solutions elsewhere of adding <UseWPF>true</UseWPF> to the class lib csproj file, but this has no effect.
推荐答案
和往常一样，发布问题的时间不得早于找到答案的时间.我还必须将csproj文件中的SDK更改为:
As usual, no sooner do I post the question than I find the answer. I also had to change the SDK in the csproj file to:
<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
这篇关于如何在.Net Core中引用System.Windows命名空间?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！