Class Diagrams in VS 2017

Question

I have been using VS 2015 and like the Class Diagram item. I recently upgraded to 2017 and can\'t seem to find the Class Diagram item. Anyone know how I get to it?

Answer 1

A further note on Dmitry's 2017 answer. I opened up

C:\Program Files (x86)\Microsoft Visual 
Studio\2017\Community\MSBuild\Microsoft\VisualStudio\Managed\ 
Microsoft.CSharp.DesignTime.targets 

and went to the element. I already had this:

with ClassDesigner already there, and yet I was still unable to drag items to my hack-made Diagram.cd using the XML editing method Dmitry mentioned (

Manually create text file, say MyClasses.cd with following content:

  MinorVersion="1">
>      

). But when I took off the semicolon off 'ClassDesigner' in that element then reopened Visual Studio, voila, I was able to drag classes from my Solution Explorer to my Diagram.cd window.

So in conclusion, this element in Microsoft.CSharp.DesignTime.targets worked:

I am using VS 2019, version 16.1.5.