ASP.Net 下载文件到客户端浏览器 [英] ASP.Net Download file to client browser
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问题描述
我正在编写一个简单的测试页面,用于在单击按钮时从浏览器下载文本文件.我遇到了一个我以前从未见过的非常奇怪的错误.有什么想法吗?
I'm writing a simple test page to download a text file from a browser on button click. I am getting a really strange error that I have never seen before. Any thoughts?
错误发生在 Response.End();
并且文件永远不会到达客户端浏览器
The error occurs on Response.End();
and the file never gets to the client browser
代码:
string filePath = "C:\test.txt";
FileInfo file = new FileInfo(filePath);
if (file.Exists)
{
Response.ClearContent();
Response.AddHeader("Content-Disposition", "attachment; filename=" + file.Name);
Response.AddHeader("Content-Length", file.Length.ToString());
Response.ContentType = "text/plain";
Response.TransmitFile(file.FullName);
Response.End();
}
错误:
无法计算表达式,因为代码已优化或本机框架位于调用堆栈顶部.
Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack.
推荐答案
尝试将其更改为.
Response.Clear();
Response.ClearHeaders();
Response.ClearContent();
Response.AddHeader("Content-Disposition", "attachment; filename=" + file.Name);
Response.AddHeader("Content-Length", file.Length.ToString());
Response.ContentType = "text/plain";
Response.Flush();
Response.TransmitFile(file.FullName);
Response.End();
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