Question

我基本上想要一个下载文件的按钮。我有以下代码：

protected void downloadButton_Click(object sender, ImageClickEventArgs e)
{
        Response.Clear();
        Response.ContentType = "application/octet-stream";
        Response.AppendHeader("Content-Disposition", "filename=" + "abcd.txt");
        Response.TransmitFile(Server.MapPath("~/Uploads/Group/") + "abcd.txt");
        Response.End();

}

但是当我点击它时没有任何反应，我在输出中得到以下文字：

A first chance exception of type 'System.Threading.ThreadAbortException' occurred in mscorlib.dll
An exception of type 'System.Threading.ThreadAbortException' occurred in mscorlib.dll but was not handled in user code
The thread '<No Name>' (0x19d0) has exited with code 0 (0x0).
The thread '<No Name>' (0x1efc) has exited with code 0 (0x0).

我有文件＆＃34; abcd.txt＆＃34; in＆＃34;上传/群组/＆＃34;我想下载它。我做错了什么？

Answer 1

当您致电Response.End()时，线程将中止。这是正常和预期的行为。

发送文本文件时，请使用内容类型“text / plain”。

如果要下载某些内容，请确保将其设置为附件下载。以下是ASP.Net Download file to client browser的一些示例代码：

 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();

下载按钮不起作用

1 个答案: