为什么WebClient.UploadFileAsync无法处理大文件上传?

问题描述

我正在将文件从C#应用程序上载到ASP.Net网站，两者均由我编写，因此我可以访问代码.

I am uploading a file from a C# application to an ASP.Net website, both written by me so I have access to the code.

但是，它只能用于文本文件(1KB)，而不能用于MOV文件(77MB).

But, it is working for a text file (1KB) but not for a MOV file (77MB).

在两种情况下，我都使用UploadProgressChanged来获取进度.TXT文件达到100％，而MOV文件仅达到50％.完成后，我只能找到服务器上保存的TXT文件，而找不到MOV文件.

In both cases, I am using UploadProgressChanged to get the progress. The TXT file goes to 100% while the MOV file goes only till 50%. When done, I only find the TXT file saved on the server but not the MOV file.

为什么会这样?我如何使它工作?

Why is this happening? How can I get it to work?

Windows应用代码-C#

Client.UploadFileAsync(new Uri("http://localhost:xxxxxx/Default.aspx"),  "c:\\1.MOV");

Default.aspx代码-VB

Protected Sub Page_Load(...) Handles Me.Load
    If Request.Files IsNot Nothing Then
        If Request.Files.Count > 0 Then
            Request.Files(0).SaveAs(Server.MapPath("~/1.mov"))
            Response.Write("File saved at: " + Server.MapPath("~/1.mov"))
        Else
            Response.Write("At least one file should be sent")
        End If
    Else
        Response.Write("No file received")
    End If
End Sub

推荐答案

这是生产应用程序中的一个示例.设置为100mb:

Here's an example from a production app. This one is set for 100mb:

<configuration>
  <system.web>
  <httpRuntime maxRequestLength="100000" executionTimeout="600" />
  </system.web>
</configuration>

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