如何在.NET Core类库中使用System.Windows.Forms [英] How to use System.Windows.Forms in .NET Core class library

问题描述

我已经创建了 .NET Core 类库并尝试针对 net40 框架构建它.我想使用 System.Windows.Forms 程序集中的 Clipboard 类.我该怎么做?

I've created .NET Core class library and try to build it against net40 framework. I want to use Clipboard class from System.Windows.Forms assembly. How can I do this?

我的 project.json 文件:

My project.json file:

{
    "version": "1.0.0-*",

    "dependencies": {
        "NETStandard.Library": "1.6.0"
    },

    "frameworks": {
        "netstandard1.6": {
            "imports": "dnxcore50",
            "buildOptions": {
                "define": [
                    "NETCORE"
                ]
            },
            "dependencies": {
                "System.Threading": "4.0.11",
                "System.Threading.Thread": "4.0.0",
                "System.Threading.Tasks":  "4.0.11"
                }
        },
        "net40": {
            "buildOptions": {
                "define": [
                    "NET40"
                    ]
                },
            "dependencies": {
                // dependency should be here but there is no such dll
            }
        }
    }
}

我所有的 net40 特定代码都在 NET40 定义下.有什么想法吗?

All my net40 specific code is under NET40 define. Any thoughts?

推荐答案

您需要的是 "frameworkAssemblies"，例如:

What you need is "frameworkAssemblies", for example:

"frameworks": {
  "netstandard1.6": {
    "dependencies": {
      "NETStandard.Library": "1.6.0"
    }
  },
  "net40": {
    "frameworkAssemblies": {
      "System.Windows.Forms": {}
    }
  }
}

使用Clipboard也需要设置主线程为STA，所以不要忘记在Main()中添加[STAThread]在您的应用程序中.

Working with Clipboard also requires setting the main thread as STA, so don't forget to add [STAThread] to Main() in your application.

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