如何创建字符串并将其分配到剪贴板，以便在粘贴时 MS Word 将其作为表格接受？
[英]How to create and assign a string to clipboard so that when pasted MS Word will accept it as a table?
问题描述
I have to find a way to generate a string so that when set and then pasted to a Word document it will display a table.
我必须找到一种生成字符串的方法，以便在设置并粘贴到 Word 文档时显示一个表格。
I did some research about this, but none of them seem to work.我对此进行了一些研究，但似乎没有一个有效。 One of the things I tried was to generate a string of HTML, then set it as the clipboard data and pass format as HTML.我尝试的一件事是生成一个 HTML 字符串，然后将其设置为剪贴板数据并将格式传递为 HTML。
string html = @"<html><body><table>
<tr>
<th>Month</th>
<th>Savings</th>
</tr>
<tr>
<td>January</td>
<td>$100</td>
</tr>
</table></body></html>";
Clipboard.SetData(DataFormats.Html, html);
but it did not work, nothing was pasted to word doc when I tried.但它不起作用，当我尝试时，没有任何东西粘贴到 word doc 中。 And then when I set Data format as text (DataFormats.Text) it was pasted but only as text, not as a table.然后当我将数据格式设置为文本（DataFormats.Text）时，它被粘贴但仅作为文本，而不是作为表格。
1 个解决方案
解决方案1
1 2022-09-03 18:54:26
Basically, everything you need to know is in Microsoft's own article on this very topic: how to use Win32's Clipboard API to copy and paste HTML:基本上，你需要知道的一切都在微软自己关于这个主题的文章中：如何使用 Win32 的剪贴板 API 复制和粘贴 HTML：
https://docs.microsoft.com/en-us/windows/win32/dataxchg/html-clipboard-format https://docs.microsoft.com/en-us/windows/win32/dataxchg/html-clipboard-format
(Note: at the time of writing, there's a small irony in that an article about correctly formatting HTML for the clipboard itself is itself a mesh of Markdown and broken HTML... so I thought I'd act all civic for once and fix the broken HTML and... I ended up basically rewriting the article, here's the PR ). （注意：在撰写本文时，有一点讽刺意味的是，一篇关于正确格式化剪贴板本身的 HTML 的文章本身就是 Markdown 和损坏的 HTML 的网格，所以我认为所有这些都修复了...损坏的 HTML 和......我最终基本上重写了这篇文章， 这是 PR ）。
To pass HTML through Windows' Clipboard API, you need to do a few things:要通过 Windows 的剪贴板 API 传递 HTML，您需要做一些事情：
The entire HTML text must be structurally valid HTML (so you can still hang on to any Netscape-era HTML when everyone WAS SHOUTING ALL THE TIME BECAUSE HTML TAGS WERE ALL UPPERCASE and few bothered to ever use a
</p>or</li>).The entire HTML text must be structurally valid HTML (so you can still hang on to any Netscape-era HTML when everyone WAS SHOUTING ALL THE TIME BECAUSE HTML TAGS WERE ALL UPPERCASE and few bothered to ever use a </p>or</li>)。- ...but you can't do things like
<script><head></p>....但你不能做像<script><head></p>这样的事情。 - While HTML like
<span><div></div></span>is syntactically valid and well-formed, HTML itself doesn't allow<span>to parent a<div>and requires browsers to break-up the outer<span>into separate siblings and cousins and bring the single<div>to the top-level - and the documentation doesn't mention what happens if you attempt to copy (or paste) "HTML" like that - though I assume Windows doens't care and just treats it as a big string, but the possibility of having fun with other applications that consume pasted HTML (eg Word, Excel, etc) because this is how security vulnerabilities start.虽然像<span><div></div></span>这样的 HTML 在语法上有效且格式正确，但 HTML 本身不允许<span>成为<div>的父级，并要求浏览器分解外部<span>分成不同的兄弟姐妹和堂兄弟，并将单个<div>带到顶层 - 并且文档没有提到如果你尝试复制（或粘贴）“HTML”会发生什么 - 尽管我认为Windows 确实如此t 关心并且只是将其视为一个大字符串，但是可以与其他使用粘贴的HTML的应用程序（例如 Word、Excel 等）一起玩，因为这就是安全漏洞的开始方式。 - Also, it's also completeley undocumented how Windows and other applications handle HTML's Custom Elements feature.此外，Windows 和其他应用程序如何处理 HTML 的自定义元素功能也完全没有记录。
- ...but you can't do things like
Then you need to generate a header, with the right parameters, and the right formatting just for it to work .
然后，您需要生成一个 header，具有正确的参数和正确的格式，以使其正常工作。 Computers are awful.电脑太可怕了。As you're passing in a single large element (the
<table>, I assume?) then the<table>'souterHTMLcan be the bounds of the actual HTML fragment that will (or rather, should ) be copied by the receiving application.当您传入单个大元素（ <table>，我假设？）时，<table>的outerHTML可以是实际 HTML 片段的边界，该片段将（或者更确切地说，应该）由接收方复制应用。- This outer element, the fragment, is marked with HTML comments
<!--StartFragment-->and<!--EndFragment-->.这个外部元素，片段，用 HTML 注释<!--StartFragment-->和<!--EndFragment-->。
- This outer element, the fragment, is marked with HTML comments
Only now can you calculate the values of those header parameters (which also represent an intentionally redundant representation of the
<!--Start/EndFragment-->bounds)...只有现在您才能计算那些 header 参数的值（它们也代表<!--Start/EndFragment-->边界的有意冗余表示）...- ... the problem is the insertion of those
Start/EndFragmentcomments into the HTML makes the message longer would break any previously calculated absolute offsets....问题是将这些Start/EndFragment注释插入 HTML 会使消息更长会破坏任何先前计算的绝对偏移量。
- ... the problem is the insertion of those
So, (Doug DeMuro voice) this is the template for text data representing a HTML fragment being placed into the Windows Clipboard:因此， （Doug DeMuro 语音）这是文本数据的模板，该模板代表 HTML 片段被放入 Windows 剪贴板：
Version:1.0
StartHTML:AAAA
EndHTML:BBBB
StartFragment:CCCC
EndFragment:DDDD
[StartSelection:CCCC
EndSelection:CCCC]
<HTML goes here>
The headers are separated by simple line-breaks.
标题由简单的换行符分隔。 Curiously MS's documentation says that all 3 major line-break-styles were permissable ( \r,\r\n, and\n),奇怪的是 MS 的文档说所有 3 种主要的换行样式都是允许的（ \r、\r\n和\n），The last 2 headers/parameters (
StartSelectionandEndSelection) are optional ( but such that you must either supply neither or supply both - supplying only one of the twoStart/EndSelectionparameter will break things in unspecified ways.最后 2 个标头/参数（ StartSelection和EndSelection）是可选的（但是您必须既不提供也不能提供两者 - 仅提供两个Start/EndSelection参数之一会以未指定的方式破坏事情。- My personal favoute is nasal demons .我个人最喜欢的是鼻恶魔。
- My personal favoute is nasal demons .
Now do this:
现在这样做：- Copy that template into a new
Stringand stick your completed HTML directly at the end of the header, separated by a single line-break.将该模板复制到一个新String中，并将完成的 HTML 直接粘贴在 header 的末尾，用一个换行符分隔。 - Take a look at that header above.看看上面那个header。 See at the top where it says
Version:1.0?在顶部看到Version:1.0吗？ Yeah?是的？ Good.好的。 Ignore it.忽略它。 - Now see th
StartHTMLparameter below.现在请参阅下面的StartHTML参数。 We will calculate that last.我们将最后计算。 Ignore it for now暂时忽略它 - Next is
EndHTML, which is the absolute byte offset (from the start of the header, not the HTML) of the end of the HTML text itself - basically it's the message length .接下来是EndHTML，它是 HTML 文本本身结尾的绝对字节偏移量（从 header 的开头，而不是 HTML） - 基本上是消息长度。 -
StartFragmentis the absolute byte offset (from the start of the header) to the<in a well-formed HTML element representing the fragment itself.StartFragment是表示片段本身的格式良好的 HTML 元素中的绝对字节偏移量（从标头的开头）到<。
- The inserted
<!--Start/EndFragment-->comments must be considered outside the fragment (ie aStringrepresentation of your fragment's raw HTML would not have those comments in it anywhere)..插入的<!--Start/EndFragment-->注释必须被考虑在片段之外（即片段的原始 HTML 的String表示不会在任何地方包含这些注释）..
-
EndFragmentis the absolute byte offset (from the start of the header) to the end of the fragment.EndFragment是绝对字节偏移量（从标头的开头）到片段的结尾。 This is an exclusive upper-bound (so ifStartFragment=100andEndFragment=150then the fragment is 50 char in length, simple).这是一个排他的上限（所以如果StartFragment=100和EndFragment=150则片段长度为 50 个字符，简单）。- Important note: Remember the text run represented by
Start/EndFragmentmust be a valid kinda-"self-contained" element.重要提示：请记住，由Start/EndFragment表示的文本运行必须是有效的有点“自包含”的元素。 So you cannot have a fragment that abrubtly ends inside a tag or its attributes - nor start half-way through a container element's many text nodes...所以你不能有一个在标签或其属性内突然结束的片段 - 也不能从容器元素的许多文本节点中途开始...... - ... however the
Start/EndSelectionheaders, if present, can start and end at arbitrary points in the human-readable text (but conversely, the documentation does not say what happens ifStart/EndSelectionare inside an element's tags or attributes, for example)....但是，如果Start/EndSelection标头存在，则可以在人类可读文本中的任意点开始和结束（但相反，文档没有说明如果Start/EndSelection在元素的标签或属性内会发生什么，例如例子）。
- Important note: Remember the text run represented by
- Copy that template into a new
Then substitute those calculated numbers into those
BBBB/CCCC/etc placeholders below: but do not delete unused placeholders : instead replace them with a leading digit'0'character.然后将这些计算的数字替换为下面的那些BBBB/CCCC/etc 占位符：但不要删除未使用的占位符：而是用前导数字'0'字符替换它们。- Don't worry: in this case (at least) any leading zeroes are not interpreted as forcing octal (base-8) integer parsing, phew .别担心：在这种情况下（至少）任何前导零都不会被解释为强制八进制（base-8） integer 解析，唷。
- Don't worry: in this case (at least) any leading zeroes are not interpreted as forcing octal (base-8) integer parsing, phew .
- Oh, almost forgot : go back to the top to caclulate
StartHTML, which is the absaolute byte offset to the start of the HTML text (and of the opening'<'in<htm>I assume).哦，差点忘了： go 回到顶部以计算StartHTML，这是 HTML 文本开头的绝对字节偏移量（以及我假设<htm>中的开头'<'）。
So you'll end up with this:所以你最终会得到这个：
string htmlInTheClipboardLooksLikeThis =
@"Version:1.0
StartHTML:0081
EndHTML:0263
StartFragment:0016
EndFragment:0126
<html>
<body>
<!--StartFragment--><table>
<tr>
<th>Month</th>
<th>Savings</th>
</tr>
<tr>
<td>January</td>
<td>$100</td>
</tr>
</table><!--EndFragment-->
</body>
</html>";
and you just need to pass it into SetText ( not SetData ) with TextDataFormat.Html :你只需要将它传递给SetText （不是SetData ）与TextDataFormat.Html ：
Clipboard.SetText( htmlInTheClipboardLooksLikeThis, TextDataFormat.Html );
and just running that in Linqpad gives us something we can paste directly into Word... and it indeed imported it as a Word table:只需在 Linqpad 中运行它，我们就可以直接粘贴到 Word 中……它确实将其导入为 Word 表格：
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