How to add new win form in project C#?
问题 I have existing project. I tried to add new empty form in this, but I have limited choose of windows form that mean to inheriting. But I need just simple form. I use VS 2017 回答1: It seems like you didn't install the required components. To do this, close VS, run your Visual Studio Installer (you probably installed VS through it), click modify for your VS Version and make sure that .Net desktop development is checked: Then launch the installation by hitting Modify and start VS again. If you