NET Framework project that should support the use of WCF technology. However, looking at the file structure of the project in your screenshot, I suppose you are using a. NET Core projects cannot use WCF technology, because WCF is probably only available in.
Perhaps you are using a wrong Visual Studio project type, which filters out that item? For example, I suppose that. So it does seem to be available in Visual Studio 2019. The item WCF Service (Ajax enabled) does show up in the items list when I add an item to my project. Using Visual Studio 2019, I followed first steps of the following walktrough from Microsoft:
