blocks|key|2543344|text|转到菜单→窗口→新建窗口|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2543345|​|2543346|📷|atomic|offset|length|2543347|2543348|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/5c33d183563665e83c3b9cf413da17d0.png|imageAlt^0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@$G|V|H|W|1|X]]|A|$]]|$1|I|3|C|5|6|7|Y|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q|R|-4]]]]

Go to menu → Windows → New Window:

<a href="https://i.stack.imgur.com/cJplN.png" rel="noreferrer"><img src="https://i.stack.imgur.com/cJplN.png" alt="Enter image description here"></a>

blocks|key|2543276|text|可以使用Windows→的“新建窗口”选项复制当前窗口。欲了解更多信息，请访问：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2543277|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

You can use the Windows → New Window option to duplicate the current window. See more at: <a href="http://www.sadev.co.za/content/why-i-visual-studio-2010-undock-windows#sthash.UTUQg8au.dpuf" rel="noreferrer">Why I like Visual Studio 2010? Undock Windows</a>

blocks|key|2543228|text|打开文件(如果您使用多个选项卡组，请确保您的文件处于选中状态)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2543229|菜单窗口→Split+(或者，在编辑器的垂直滚动条上方有一个很小的小块-抓住它并向下拖动)|2543230|这为您提供了同一文件的两个(水平)视图。注意，任何编辑操作都会在两个视图上都有反映。|2543231|完成后，抓住拆分器并将其一直向上拖动(或菜单窗口→Remove+Split)。|2543232|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

Open the file (if you are using multiple tab groups, make sure your file is selected).

Menu Window → Split
(alternately, there's this tiny nub just above the editor's vertical scroll bar - grab it and drag down)

This gives you two (horizontal) views of the same file. Beware that any edit-actions will reflect on both views.

Once you are done, grab the splitter and drag it up all the way (or menu Window → Remove Split).

blocks|key|2754806|text|如何在Visual+Studio+2019中并排打开同一文件的两个实例：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2754807|2754808|打开文件。|ordered-list-item|2754809|2754810|单击[+Window+->+New+Window.+][|offset|length|style|CODE|2754811|]|2754812|2754813|2754814|应打开一个包含相同文件的新窗口。|2754815|2754816|单击Window+->+New+Vertical+Document+Group.上的|2754817|2754818|2754819|结果：|2754820|📷|atomic|2754821|​|2754822|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/14e73347625f03029703ff55d4f96641.png|imageAlt^0|0|0|0|0|4|K|0|0|0|0|0|0|2|11|0|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|1D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|1E|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|1F|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|1G|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|1H|8|@$I|1I|J|1J|K|L]]|9|@]|A|$]]|$1|M|3|N|5|E|7|1K|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|1L|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|1M|8|@]|9|@]|A|$]]|$1|Q|3|R|5|E|7|1N|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|1O|8|@]|9|@]|A|$]]|$1|T|3|U|5|6|7|1P|8|@$I|1Q|J|1R|K|L]]|9|@]|A|$]]|$1|V|3|-4|5|E|7|1S|8|@]|9|@]|A|$]]|$1|W|3|-4|5|6|7|1T|8|@]|9|@]|A|$]]|$1|X|3|Y|5|6|7|1U|8|@]|9|@]|A|$]]|$1|Z|3|10|5|11|7|1V|8|@]|9|@$I|1W|J|1X|1|1Y]]|A|$]]|$1|12|3|13|5|6|7|1Z|8|@]|9|@]|A|$]]|$1|14|3|-4|5|6|7|20|8|@]|9|@]|A|$]]]|15|$16|$5|17|18|19|A|$1A|1B|1C|-4]]]]

How to open two instances of the same file side by side in Visual Studio 2019:
<ol>
<li>Open the file.
</li>
<li>Click <code>Window -&gt; New Window</code>.
</li>
<li>A new window should be open with the same file.
</li>
<li>Click on <code>Window -&gt; New Vertical Document Group</code>.
</li>
</ol>
Result:
<a href="https://i.stack.imgur.com/TUGN5.png" rel="noreferrer"><img src="https://i.stack.imgur.com/TUGN5.png" alt="enter image description here" /></a>

blocks|key|2543110|text|窗口菜单，新建水平/垂直选项卡组，我想。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2543111|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Window menu, New Horizontal/Vertical Tab Group there will do, I think.

blocks|key|2754618|text|当使用Visual+Studio2013和VB.NET时，我发现你可以很容易地自定义菜单和添加“新窗口”命令--不需要弄乱注册表！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2754619|只有上帝知道为什么微软选择在某些语言中不包含命令...？|2754620|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

When working with Visual Studio 2013 and VB.NET I found that you can quite easily customize the menu and add the "New Window" command - there is no need to mess with the registry!

God only knows why Microsoft chose not to include the command for some languages...?

blocks|key|2543295|text|适用于较新的版本(如Visual+Visual+Studio+2017)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2543296|2543297|选择要复制的窗口。|unordered-list-item|2543298|转到窗口选项卡，然后单击列表顶部的拆分。|2543299|完成后，再次单击它以将其关闭。|2543300|2543301|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|N|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|O|8|@]|9|@]|A|$]]|$1|F|3|G|5|E|7|P|8|@]|9|@]|A|$]]|$1|H|3|I|5|E|7|Q|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|L|$]]

For newer versions (such as Visual&nbsp;Studio&nbsp;2017)

<ul>
<li>Select the window you want to duplicate.</li>
<li>Go to the window tab and click on split at the top of the list.</li>
<li>When you are done, click it again to toggle it off.</li>
</ul>

blocks|key|55527|text|对于文件类型，其中相同的文件不能在垂直选项卡组(例如.vb文件)中打开，您可以|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|55528|55529|打开2个不同的Visual+Studio+|unordered-list-item|55530|实例在每个IDE窗口中打开相同的文件，并将它们并排放置以实现您的布局。|55531|55532|但是，如果您在一个实例中保存到磁盘，则在切换到另一个实例时，您必须重新加载该文件。另外，如果您在两个实例中都进行了编辑，则必须在第二次保存时进行解析。在这两种情况下，Visual+Studio都会为您提供各种选项。如果你只在一个实例中编辑，你的生活将会变得简单一点。|55533|entityMap^0|E|P|0|0|0|K|0|0|Z|0|0|0|3P|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|T|8|@]|D|@]|E|$]]|$1|G|3|H|5|I|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|J|3|K|5|I|7|X|8|@$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|L|3|-4|5|6|7|10|8|@]|D|@]|E|$]]|$1|M|3|N|5|6|7|11|8|@$9|12|A|13|B|C]]|D|@]|E|$]]|$1|O|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|P|$]]

For file types, where the same file can't be opened in a vertical tab group (for example .vb files) you can

<ul>
<li>Open 2 different instances of Visual Studio </li>
<li>Open the same file in each instance</li>
<li>Resize the IDE windows &amp; place them side by side to achieve your layout.</li>
</ul>

If you save to disk in one instance though, you'll have to reload the file when you switch to the other. Also if you make edits in both instances, you'll have to resolve on the second save. Visual Studio prompts you in both cases with various options. You'll simplify your life a bit if you edit in only the one instance.

blocks|key|55541|text|我没有Visual+Studio+2005的副本，但是这个过程可以在Visual+Studio+2008上运行：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|55542|55543|打开xyz.cpp和其他一些文件。|ordered-list-item|55544|右键单击选项卡标题并选择新建垂直选项卡组。|55545|左键单击第一个选项卡组中其他文件。|55546|再次通过解决方案资源管理器打开xyz.cpp。|55547|G29|55548|现在，您应该在单独的垂直选项卡组中有两个文件实例。|55549|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|S|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|T|8|@]|9|@]|A|$]]|$1|F|3|G|5|E|7|U|8|@]|9|@]|A|$]]|$1|H|3|I|5|E|7|V|8|@]|9|@]|A|$]]|$1|J|3|K|5|E|7|W|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|X|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|Y|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|Q|$]]

I don't have a copy of Visual&nbsp;Studio&nbsp;2005, but this process works on Visual&nbsp;Studio&nbsp;2008:

<ol>
<li>Open xyz.cpp along with some other file.</li>
<li>Right click on tab header and select new vertical tab group.</li>
<li>Left click on that other file in the first tab group.</li>
<li>Open xyz.cpp through solution explorer again.</li>
</ol>

You should now have two instances of file in separate vertical tab groups.

blocks|key|2754721|text|我想出了一个技巧，可能会产生原始答案中想要的结果。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2754722|如果在源代码管理的两个窗口中都有所需的文件，则可以右击该文件并选择“比较”，然后将|2754723|如果进行比较，将会有一个名为diff的新窗口，显示文件的内容。|2754724|这当然不是很理想，因为diff窗口会有污染文本的diff颜色。注意:你可以比较你想要打开的文件和空文件，然后你会得到一个非常丑陋的绿色背景的窗口。|2754725|这并不完美，这是一个技巧，但这是我发现在两个窗口中真正拥有相同文件的唯一方法。|2754726|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|N|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|O|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|P|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|K|$]]

I came up with a hack that might produce the result intended in the original answer.

If you have the file you want in two windows in a source control, you can right-click on the file and select compare, you can compare the 

If you do compare you will have a new window Called diff, showing you the contents of you file.

This is of course not ideal as the diff window will have the diff colors polluting the text.
Note: you can compare the file you want to open to and empty file, and then you will have the window in a very ugly green background.

This is not perfect, it is a hack, but it was the only way I found to really have the same file in two windows.

blocks|key|56616|text|要处理一个长文件的两个部分，只需使用快捷键(+Ctrl+%2B\)或在选定的选项卡上单击拆分编辑器窗口。该图标位于VS代码的右上角。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|56617|📷|atomic|offset|length|56618|​|56619|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/7cd313d45c32eaee4c8995f5d7d2a5da.jpeg|imageAlt^0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|S|8|@]|9|@$E|T|F|U|1|V]]|A|$]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|J|$K|$5|L|M|N|A|$O|P|Q|-4]]]]

to work on a two section of a one long file simply use shortcut ( Ctrl + \ ) or click on split editor window while you are on selected Tab. the icon is on top-right of the VS Code.
<a href="https://i.stack.imgur.com/EDELN.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/EDELN.jpg" alt="enter image description here" /></a>

blocks|key|2543486|text|因为这个问题太老了，不知道回答这个问题是不是白费力气。但如果有人正在使用VSCode+1.62.1或更高版本，要在另一个选项卡中查看相同的脚本，只需在工具栏上右键单击脚本名称，然后选择“向右拆分”(或向上/向下/向左拆分)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2543487|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

As the question is too old, do not know answering this is like beating a dead horse to run or not. But if someone is using VSCode 1.62.1 or later, to see the same script in another tab just simply right click on the script name on the toolbar and select &quot;split right&quot; (or split up/down/left).

I have a file, xyz.cpp. I want to open two instances of this file in Visual studio (BTW, I am using Visual&nbsp;Studio&nbsp;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:

<ol>
<li>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.</li>
<li>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.</li>
</ol>

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.

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

Visual Studio

Windows

我有一份文件xyz.cpp我想在Visual studio中打开此文件的两个实例(顺便说一句，我正在使用Visual Studio 2005)。我为什么要这样做呢？我想要并排比较同一文件的两个部分。我知道一些解决方法，例如：创建该文件的副本。但问题是它并不优雅，我不想每次遇到这个问题时都去拷贝，，我可以把这个窗口一分为二。拆分的问题是我只能水平拆分它。水平分割的结果是我的屏幕的右半部分是空白的。如

问在单个Visual Studio会话中打开文件的两个实例
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