FtpWebRequest SIZE命令-设置二进制模式的能力 [英] FtpWebRequest SIZE Command - ability to set binary mode

问题描述

我正在构建从FTP下载和上传文件的应用程序，基本操作.
现在，我每次尝试从FTP位置获取文件大小时，都会收到550错误.

I'm building application that downloads and uploads files from FTP, basic operations.
Right now I'm trying to get file size from FTP location, every time I try to do that I get 550 error.

我发现了2007年以来的旧线程:https://social.msdn.microsoft.com/Forums/en-US/0c38814e-d8e3-49f3-8818-b5306cc100ce/ftpwebrequestusebinary-does-not-work?forum = netfxnetcom

I found old thread from 2007: https://social.msdn.microsoft.com/Forums/en-US/0c38814e-d8e3-49f3-8818-b5306cc100ce/ftpwebrequestusebinary-does-not-work?forum=netfxnetcom

因为它已被锁定，所以我无法回复.

because it is locked I can't reply to it.

@Mariya说:

感谢您的评论.我们很清楚FtpWebRequest的当前限制.我们已经收到了许多更改FtpWebRequest的设计的请求-主要抱怨是它不能灵活发送某些命令 独立:例如TYPE，PWD，CWD等...，这导致用户没有完全的控制权.该问题将在以后的版本中修复.

Thank you for your comments. We are well aware of the current limitations of the FtpWebRequest. We have had numerous requests for changing the design of FtpWebRequest - the main complaint being that it does not provide flexibility to send certain commands independently: like TYPE, PWD, CWD, etc.... which results in users not having complete control. This will be fixed in a future release.

Mariya

我正在使用.NET 4.6，但仍然出现相同的错误.
从那以后有什么改变吗?这终于解决了吗?除了使用商业库，是否有其他解决方法?

I'm using .NET 4.6 and I still get same error.
Has anything changed since then? Is this finally fixed? Are there any workarounds, except using commercial libraries?

很抱歉，我正在创建新线程，但正如我在锁定原始线程之前所写的那样.

Sorry that I'm creating new thread but as I wrote before original thread is locked.

推荐答案

您好，Tomasz Jag usz，

>>现在，我每次尝试从FTP位置获取文件大小时都会出现550错误.

>>Right now I'm trying to get file size from FTP location, every time I try to do that I get 550 error.

能否请您提供更多信息，例如相关代码和相关文件，我们将在您的立场上重现您的问题，并尝试找到解决方案.

Could you please provide a bit more information, such as related code and related file, we'll reproduce your issue on our side and try to find a solution to resolve it.

最诚挚的问候，

吴可乐

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