editor - Open two instances of a file in a single Visual Studio session

Question

I have a file, xyz.cpp. I want to open two instances of this file in Visual studio (BTW, I am using Visual Studio 2005). Why would I want to do so? I want to compare two sections of the same file side by side. I know workarounds such as:

1. Make a copy of the file. But the problem is that it's not elegant, and I don't want to make copies every time I am faced with this.

2. I can split the window into two. The problem with split it that I can split it horizontally only. The result of a horizontal split is that the right half of my screen is white space.

If I were able to split it vertically or open two instances of the same file, it would increase the number of lines of code I can compare.

Answer 1

Here's how to do it...

1. Select the tab you want two copies of
2. Select menu Window → New Window from the menu.
3. Right click the new tab and select New Vertical Tab Group

If New Window is not listed in the *Window menu note that the command does exist, even as of Visual Studio 2017. Add it to the Window menu using menu Tools → Customize → Commands. At that point decide where to put the New Window command and select Add Command.

UPDATED on "30 July 2018"

In Visual Studio Code version 1.25.1 and later

Way 1

You can simple left click on your file in the side-panel (explorer) and press Ctrl + Enter.

Way 2

Simply right click on your file in the Visual Studio Code side-panel (explorer) and select the first option open to the side.