Response.End（）抛出错误 [英] Response.End() throwing error

问题描述

您好，



我正在尝试从gridview获取excel表。以下是我的代码：

 string excelXml = GetExcelXml（dsInput，filename）; 
 response.Clear（）; 
 response.AppendHeader（Content-Type，application / vnd.ms-excel）; 
 response.AppendHeader（Content-disposition，attachment; 
 filename =+ filename）; 
 response.Write（excelXml）; 
 response.Flush（）; 
 response.End（）; 
 

我收到异常，因为[System.Threading.ThreadAbortException] = {Unable to评估表达式，因为代码已优化或本机框架位于调用堆栈之上。}



如果我删除response.End （）我没有看到异常。



response.End（）的目的是什么？它为什么会抛出错误，我应该把它保存在我的代码中？

解决方案

检查这些

PRB：如果您使用Response.End，Response.Redirect或Server.Transfer [ ^ ]

另外看看这些

使用Response.Redirect（）处理ThreadAbortException：最佳方法 [ ^ ]

不要将Response.End（）与OutputCache一起使用 [ ^ ]

< blockquote>这是备用解决方案，

 System.Text.StringBuilder sb =  new  System.Text.StringBuilder（）; 
 sb.Append（GetExcelXml（dsInput，filename））; 
 response.Clear（）; 
 System.Web.HttpContext.Current.Response.AddHeader（  Content-Disposition，   attachment; filename = + fileName）; 
 response.Write（sb.ToString（））; 
 Response.End（）; 

希望这可以帮到你...

< blockquote> http://forums.asp.net/t/984756.aspx/1 [ ^ ]

Hello,

I am trying to get excel sheet from gridview. Following is my code:

string excelXml = GetExcelXml(dsInput, filename);
response.Clear();
response.AppendHeader("Content-Type", "application/vnd.ms-excel");
response.AppendHeader("Content-disposition", "attachment;
filename=" + filename);
response.Write(excelXml);
response.Flush();
response.End();

I am getting exception as "[System.Threading.ThreadAbortException] = {Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack.}"

If i remove response.End() i don't see the exception.

What is purpose of response.End().. Why is it throwing error and should I keep it in my code?

解决方案

Check these
PRB: ThreadAbortException Occurs If You Use Response.End, Response.Redirect, or Server.Transfer[^]
Also take a look at these
Handling ThreadAbortException with Response.Redirect() : Best possible approaches[^]
Don’t use Response.End() with OutputCache[^]

Here is the alternate solution,

System.Text.StringBuilder sb = new System.Text.StringBuilder();
sb.Append(GetExcelXml(dsInput, filename));
response.Clear();
System.Web.HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment;filename=" + fileName);
response.Write(sb.ToString());
Response.End();

Hope this may help you...

http://forums.asp.net/t/984756.aspx/1[^]

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