blocks|key|795276|text|根据this+MSDN+page上的用户评论，您必须添加对WindowsBase+.Net库的引用。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|795277|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/system.io.packaging.aspx^0|2|E|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

According to a user comment on <a href="http://msdn.microsoft.com/en-us/library/system.io.packaging.aspx">this MSDN page</a>, you have to add a reference to the WindowsBase .Net library.

blocks|key|795344|text|System.IO.Packaging是一个命名空间，而不是引用。大多数(全部？)名称空间中的类，例如ZipPackage，都部署在WindowsBase.dll中。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|795345|确保您有对WindowsBase.dll的引用-如果有，您只需在.cs文件中添加:+using+System.IO.Packaging;，就可以了。|795346|请注意，您可以在documentation+for+any+class+on+MSDN中看到这一点。例如，在ZipPackage中，它列出：|795347|Namespace:++System.IO.Packaging
Assembly:++WindowsBase+(in+WindowsBase.dll)|code-block|syntax|javascript|795348|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/system.io.packaging.zippackage.aspx|1^0|0|J|1U|F|1F|A|0|0|5|F|1C|K|0|1I|A|8|Z|1|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@$9|Y|A|Z|B|C]|$9|10|A|11|B|C]]|D|@$9|12|A|13|1|14]]|E|$]]|$1|F|3|G|5|6|7|15|8|@$9|16|A|17|B|C]|$9|18|A|19|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|1A|8|@$9|1B|A|1C|B|C]]|D|@$9|1D|A|1E|1|1F]]|E|$]]|$1|J|3|K|5|L|7|1G|8|@]|D|@]|E|$M|N]]|$1|O|3|-4|5|6|7|1H|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]|W|$5|R|S|T|E|$U|V]]]]

<code>System.IO.Packaging</code> is a namespace, not a reference. Most (all?) of the classes within the namespace, such as <a href="http://msdn.microsoft.com/en-us/library/system.io.packaging.zippackage.aspx" rel="noreferrer">ZipPackage</a>, are deployed in <code>WindowsBase.dll</code>.

Make sure you have a reference to <code>WindowsBase.dll</code> - if you do, you can just add: using <code>System.IO.Packaging;</code> to your .cs files, and you'll be fine.

Note that you can see this in the <a href="http://msdn.microsoft.com/en-us/library/system.io.packaging.zippackage.aspx" rel="noreferrer">documentation for any class on MSDN</a>. For example, in <code>ZipPackage</code>, it lists:

<pre><code>Namespace: System.IO.Packaging
Assembly: WindowsBase (in WindowsBase.dll)
</code></pre>

blocks|key|579380|text|WindowsBase提供了System.IO.Packaging命名空间。添加引用时，请添加WindowsBase作为引用，而不是尝试查找System.IO.Packaging。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|579381|entityMap^0|0|B|E|J|1B|B|1Y|J|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|G|$]]

The <code>System.IO.Packaging</code> namespace is provided by <code>WindowsBase</code>. When you add a reference, add <code>WindowsBase</code> as the reference instead of trying to find <code>System.IO.Packaging</code>.

blocks|key|579447|text|您需要添加对WindowsBase.dll的引用。System.IO.Packaging位于那里。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|579448|有关更多详细信息，请参阅本文：|579449|http://msdn.microsoft.com/en-us/library/system.io.packaging.package.aspx|offset|length|579450|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|20|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Q|8|@]|9|@$F|R|G|S|1|T]]|A|$]]|$1|H|3|-4|5|6|7|U|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|E]]]]

You need to add a reference to the WindowsBase.dll. System.IO.Packaging is located in there.

See this article for more details:

<a href="http://msdn.microsoft.com/en-us/library/system.io.packaging.package.aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/system.io.packaging.package.aspx</a>

blocks|key|795489|text|WindowsBase.dll+v4.0.30319中包含System.IO.Packaging+v4.0.30319|type|unstyled|depth|inlineStyleRanges|entityRanges|data|795490|对于Windows10，您可以在此处找到|795491|C:\Windows\Microsoft.NET\assembly\GAC_MSIL\WindowsBase\v4.0_4.0.0.0__31bf3856ad364e35\|795492|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

System.IO.Packaging v4.0.30319 is in WindowsBase.dll v4.0.30319

For windows 10 maybe you could found here

C:\Windows\Microsoft.NET\assembly\GAC_MSIL\WindowsBase\v4.0_4.0.0.0__31bf3856ad364e35\

blocks|key|795561|text|在我的例子中，我使用了一个ashx处理程序。要使其正常工作，您需要将程序集添加到项目和处理程序：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|795562|<%25@+WebHandler+Language="C#"+Class="UploadExcelFile2"+%25>
<%25@+Assembly+Name="WindowsBase,+Version=1.0.0.0,+Culture=neutral,+PublicKeyToken=31bf3856ad364e35"+%25>|code-block|syntax|javascript|795563|这对我来说终于起作用了，我多次尝试添加WindowsBase作为引用(重新启动VS，也重新启动了机器)，但直到我在aspx页面中显式地添加了它，它仍然不起作用。我使用：<%25@+Assembly+Name="WindowsBase,+Version=4.0.0.0,+Culture=neutral,+PublicKeyToken=31bf3856ad364e35"+%25>作为我引用的dll是4.0版。|offset|length|style|CODE|795564|entityMap^0|0|0|2C|2T|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

In my case I was using a ashx handler. For it to work you need to add the assembly to the project and the handler:

<pre><code>&lt;%@ WebHandler Language="C#" Class="UploadExcelFile2" %&gt;
&lt;%@ Assembly Name="WindowsBase, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" %&gt;
</code></pre>

This finally worked for me, tried multiple times to add WindowsBase as reference(restarted VS, restarted machine too) but still it was not working till I added this explicitly in my aspx page. I used: <code>&lt;%@ Assembly Name="WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" %&gt;</code> as the dll i had referenced was version 4.0.

I have my project set to .NET Framework 4.0. When I add <code>System.IO.Packaging</code>, it says that it doesn't exist. It also doesn't show up when I try to add it as a reference to the project.

How can I add <code>System.IO.Packaging</code> to my C# project?

System.IO.Packaging

Windows

我将我的项目设置为.NET Framework4.0。当我添加System.IO.Packaging时，它告诉我它不存在。当我试图将它作为引用添加到项目中时，它也没有显示出来。如何在我的C#项目中添加System.IO.Packaging？

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