Uploading to an FTP server - api

Question

I am working on a tiny tiny application that just uploads a file to the FTP server. I have reviewed my code, but I am quite unable to locate the problem. Here is the code,
#include "stdafx.h"
using namespace System;
#include "iostream"
#include <conio.h>
using namespace System;
void UploadFiles(String ^_FileName, String ^_UploadPath, String ^_FTPUser, String ^_FTPPass);
int main ()
{
// Upload file using FTP
UploadFiles("c:\\test.html", "ftp://playbabe.tk/public_html/test.html", "xxxxxx", "xxxxxx");
return 0;
}
void UploadFiles(System::String ^_FileName, System::String ^_UploadPath, System::String ^_FTPUser, System::String ^_FTPPass)
{
System::IO::FileInfo ^_FileInfo = gcnew System::IO::FileInfo(_FileName);
// Create FtpWebRequest object from the Uri provided
System::Net::FtpWebRequest ^_FtpWebRequest = safe_cast<System::Net::FtpWebRequest^>(System::Net::FtpWebRequest::Create(gcnew Uri(_UploadPath)));
// Provide the WebPermission Credintials
_FtpWebRequest->Credentials = gcnew System::Net::NetworkCredential(_FTPUser, _FTPPass);
// By default KeepAlive is true, where the control connection is not closed
// after a command is executed.
_FtpWebRequest->KeepAlive = false;
// set timeout for 20 seconds
_FtpWebRequest->Timeout = 20000;
// Specify the command to be executed.
_FtpWebRequest->Method =System::Net::WebRequestMethods::Ftp.UploadFile;
// Specify the data transfer type.
_FtpWebRequest->UseBinary = true;
// Notify the server about the size of the uploaded file
_FtpWebRequest->ContentLength = _FileInfo->Length;
// The buffer size is set to 2kb
int buffLength = 2048;
array<System::Byte> ^buff = gcnew array<System::Byte>(buffLength);
// Opens a file stream (System.IO.FileStream) to read the file to be uploaded
System::IO::FileStream ^_FileStream = _FileInfo->OpenRead();
try
{
// Stream to which the file to be upload is written
System::IO::Stream ^_Stream = _FtpWebRequest->GetRequestStream();
// Read from the file stream 2kb at a time
int contentLen = _FileStream->Read(buff, 0, buffLength);
// Till Stream content ends
while (contentLen != 0)
{
// Write Content from the file stream to the FTP Upload Stream
_Stream->Write(buff, 0, contentLen);
contentLen = _FileStream->Read(buff, 0, buffLength);
}
// Close the file stream and the Request Stream
_Stream->Close();
delete _Stream;
_FileStream->Close();
delete _FileStream;
}
catch (Exception ^ex)
{
//MessageBox::Show(ex->Message, "Upload Error", MessageBoxButtons::OK, MessageBoxIcon::Error);
std::cout<<"error";
}
getch();
}
It gives two errors in Visual C++ 2010 Express,
Error 1 error C2275: 'System::Net::WebRequestMethods::Ftp' : illegal use of this type as an expression C:\Users\Me\documents\visual studio 2010\Projects\test1\test1\test1.cpp 70
Error 2 error C2228: left of '.UploadFile' must have class/struct/union C:\Users\Me\documents\visual studio 2010\Projects\test1\test1\test1.cpp 70
I am not sure what is going wrong here.

Answer 1

I don't know C++/CLI, but the following statement is certainly wrong:
_FtpWebRequest->Method = System::Net::WebRequestMethods::Ftp.UploadFile;
System::Net::WebRequestMethods::Ftp is a type and, as the error message indicates (you could have given us the line number!) you're trying to use it as an expression.
Are you trying to obtain a pointer to a static member function?
Did you thus mean the following?
_FtpWebRequest->Method = System::Net::WebRequestMethods::Ftp::UploadFile;