c# – 对System.Windows.Forms的引用

我正在使用C#在Excel中命令,但是当我输入时

using System.Windows.Forms

Visual Studio无法识别它
当我添加引用时,我有此错误消息

A reference to ‘System_Windows_Forms’ Could not be added.
The ActiveX type library ‘…’ was exported from a .NET assembly and cannot be added as a reference.
Add a reference to the .NET assembly instead

你有什么解决办法？

解决方法

您是否尝试从COM-tab添加它？在.NET选项卡中找到System.Windows.Forms.dll！ (按名称对dll-s进行排序可以更容易找到正确的.)