blocks|key|3101922|text|编辑:最初错过了页面加载的部分。我不太确定从查询字符串中传入了什么，但是您试过使用Server.MapPath吗？所以而不是|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3101923|System.IO.FileInfo+file+=+new+System.IO.FileInfo(strRequest);|code-block|syntax|javascript|3101924|你有|3101925|System.IO.FileInfo+file+=+new+System.IO.FileInfo(Server.MapPath(strRequest));|3101926|如果这有帮助的话请告诉我。|3101927|entityMap^0|0|0|0|0|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]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

EDIT: Missed the part about the page loading fine initially. I'm not exactly sure what's being passed in from your querystring, but have you tried using Server.MapPath? So instead of

<pre><code>System.IO.FileInfo file = new System.IO.FileInfo(strRequest);
</code></pre>

you have

<pre><code>System.IO.FileInfo file = new System.IO.FileInfo(Server.MapPath(strRequest));
</code></pre>

Let me know if that helps.

blocks|key|3101936|text|创建一个.bat文件，放入以下命令并运行该文件。它将杀死所有现有的the服务器进程，并应修复此问题。我也遇到了同样的问题。非常感谢|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3101937|taskkill++/fi+"imagename+eq+webdev.webserver40.exe"+|code-block|syntax|javascript|3101938|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Create a .bat file, put the following command and run the file. It will kill all existing webserver processes and should fix the problem. I had the same problem and it worked out for me. Thanks much

<pre><code>taskkill /fi "imagename eq webdev.webserver40.exe" 
</code></pre>

blocks|key|3102053|text|我在下面的链接中找到了一个修复方法：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3102054|http://forums.asp.net/t/1387967.aspx?How%2Bto%2Bcreate%2Ba%2Bflipcart%2Blike%2Bpanel%2Bfor%2Bshowing%2Bproducts%2Bin%2Bgridview|offset|length|3102055|if+(file.Name+==+fileName)

{
+++++Response.ClearContent();
+++++Response.AddHeader("Content-Disposition",+"attachment;+filename="+%2B+file.Name);
+++++Response.AddHeader("Content-Length",+file.Length.ToString());
+++++Response.TransmitFile(file.FullName);
+++++//Response.End();+Will+raise+that+error.+this+works+well+locally+but+not+with+IIS
+++++Response.Flush();//Won't+get+error+with+Flush()+so+use+this+Instead+of+End()


}|code-block|syntax|javascript|3102056|entityMap|0|LINK|mutability|MUTABLE|url|http://forums.asp.net/t/1387967.aspx?How%2Bto%2Bcreate%2Ba%2Bflipcart%2Blike%2Bpanel%2Bfor%2Bshowing%2Bproducts%2Bin%2Bgridview^0|0|0|2X|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@$D|U|E|V|1|W]]|A|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|A|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

I found a fix from link below:

<a href="http://forums.asp.net/t/1387967.aspx?How+to+create+a+flipcart+like+panel+for+showing+products+in+gridview" rel="noreferrer">http://forums.asp.net/t/1387967.aspx?How+to+create+a+flipcart+like+panel+for+showing+products+in+gridview</a>

<pre><code>if (file.Name == fileName)

{
 Response.ClearContent();
 Response.AddHeader("Content-Disposition", "attachment; filename=" + file.Name);
 Response.AddHeader("Content-Length", file.Length.ToString());
 Response.TransmitFile(file.FullName);
 //Response.End(); Will raise that error. this works well locally but not with IIS
 Response.Flush();//Won't get error with Flush() so use this Instead of End()


}
</code></pre>

blocks|key|3102070|text|在我的例子中，我试图写和读到这个文件：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3102071|var+path+=+System.IO.Path.GetTempFileName();|code-block|syntax|javascript|3102072|我使用了下面的代码，它起作用了。我认为IIS用户缺少写入或读取临时文件的权限。|3102073|var+path+=+Server.MapPath(@"~\App_Data\Stats");
Directory.CreateDirectory(path);
path+=+Path.Combine(path,+String.Format("{0}.csv",+Guid.NewGuid()));

using+(var+streamWriter+=+new+StreamWriter(path))
using+(var+csvWriter+=+new+CsvHelper.CsvWriter(streamWriter))
{
++++csvWriter.Configuration.Delimiter+=+csvWriter.Configuration.CultureInfo.TextInfo.ListSeparator;

++++csvWriter.WriteRecords(rounds);
}

return+File(path,+"text/csv",+"Stats.csv");|3102074|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

In my case I was trying to write and read to this file:

<pre><code>var path = System.IO.Path.GetTempFileName();
</code></pre>

I used the code below and it worked. I think that IIS user was missing permission to write to or read from the temporary file.

<pre><code>var path = Server.MapPath(@"~\App_Data\Stats");
Directory.CreateDirectory(path);
path = Path.Combine(path, String.Format("{0}.csv", Guid.NewGuid()));

using (var streamWriter = new StreamWriter(path))
using (var csvWriter = new CsvHelper.CsvWriter(streamWriter))
{
 csvWriter.Configuration.Delimiter = csvWriter.Configuration.CultureInfo.TextInfo.ListSeparator;

 csvWriter.WriteRecords(rounds);
}

return File(path, "text/csv", "Stats.csv");
</code></pre>

blocks|key|1035248|text|我刚刚在我们的环境中解决了这个问题。我们启用了模拟，并将应用程序池作为ApplicationPoolIdentity运行。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1035249|造成问题的原因是应用程序池标识没有读取源文件的权限，即使被冒充的用户确实可以访问该文件。解决这个问题的困难之处在于，如果用户和应用程序池都没有访问权限，则会出现访问权限错误。|1035250|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|$]]

I just resolved this issue in our environment. We have impersonation turned on and have the application pool running as ApplicationPoolIdentity.

Problem was caused by the app pool identity not have having read access to the source file even though the impersonated user did have access to the file. What made this tricky to resolve is that if both user and app pool do not have access you get a access permission error.

blocks|key|1035266|text|在我的例子中，这种情况只发生在特定的用户登录上。其他用户都让它正常工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1035267|这个问题是用户的LoginEmail.中的一个额外的空白|offset|length|style|BOLD|1035268|这种情况发生在一个MVC应用程序中，它使用Asp.net标识，并模拟从驻留在宿主服务器上的目录下载excel文件。|1035269|奇怪的东西！|1035270|entityMap^0|0|0|J|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@$D|P|E|Q|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|R|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|S|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|M|$]]

In my case this happened for a specific user login only. Every other user had it working. 

The issue was an extra white space in the user's LoginEmail. 

This happened in an MVC application, which was using Asp.net Identity, and Impersonation to download an excel file from a directory that lives on the hosting server.

Weird stuff!

blocks|key|3102188|text|重启IIS解决了我的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3102189|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|$]]

Restarting IIS solved the issue for me.

blocks|key|1035274|text|如果网页中有任何Console.WriteLine或Console.Clear()，则在Visual中未运行时，即在将其部署到IIS时，可能会出现此错误。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1035275|如果您在IIS中遇到此问题，并且在VS中运行良好，则搜索控制台语句并删除它们。|1035276|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|$]]

If you have any Console.WriteLine or Console.Clear() in your web pages you might get that error when not running in Visual Studio , means when you deploy it to IIS . 
If you get this problem in IIS and in VS it works fine then search for Console statements and remove them .

I have a website in an IIS 7 shared hosting environment. It's running .NET 3.5. I have a download button to download a file from the server. 

When I locally deploy this application to IIS 6, it runs fine. On the IIS 7 shared hosting server, the exception occurs.

<blockquote>
 The handle is invalid. (Exception from HRESULT: 0x80070006 (E_HANDLE))
 Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 
 System.Runtime.InteropServices.COMException: The handle is invalid. (Exception from HRESULT: 0x80070006 (E_HANDLE)) 
 COMException (0x80070006): The handle is invalid. (Exception from HRESULT: 0x80070006 (E_HANDLE))] [HttpException (0x80004005): An error occurred while communicating with the remote host. The error code is 0x80070006.]
</blockquote>

How can this be solved?

<pre><code>string strRequest = Convert.ToString(Request.QueryString.Get("file"));
System.IO.FileInfo file = new System.IO.FileInfo(strRequest);
if (file.Exists)
{
 Response.Clear();
 Response.ContentType = ReturnExtension(System.IO.Path.GetExtension(file.Name));
 Response.AppendHeader("Content-Disposition", "attachment; filename=" + file.Name);
 Response.TransmitFile(strRequest);
 Response.End();
 HttpContext.Current.ApplicationInstance.CompleteRequest();
 //DownloadFile(file.FullName, file.Name);
}
</code></pre>

The handle is invalid. (Exception from HRESULT: 0x80070006 (E_HANDLE))

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我在IIS 7共享主机环境中有一个网站。它运行的是.NET 3.5。我有一个下载按钮从服务器下载一个文件。当我在本地将此应用程序部署到IIS 6时，它运行良好。在IIS 7共享宿主服务器上，会发生异常。句柄无效。(来自HRESULT: 0x80070006 (E_HANDLE)的异常)描述:在执行当前web请求期间发生...

问句柄无效。(HRESULT例外: 0x80070006 (E_HANDLE))
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问句柄无效。(HRESULT例外: 0x80070006 (E_HANDLE))EN