Visual Basic allows you to build a fully functionally FTP
program which may be just as good as the commercial FTP programs. The
engine behind it is the Microsoft Internet Transfer Control 6.0
in which you need to insert your form before you can create the FTP
program. The name of the Microsoft Internet Transfer Control 6.0.is
Inet and if you only put in one control, its name will be
Inet1.
Inet1
comprises three important properties namely Inet1.URL that is
used to identify the FTP hostname, inet1.UserName that is used to
accept the username and the Inet1.Password that is used to accept
the user’s passwords. The statements for the program to read the
hostname of the server, the username and the password entered into
Textbox1, Textbox2 and Textbox3 by the user are shown below:
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After the user entered the above information, the program
will attempt to connect to the server using the following command, where
Execute is the method and DIR is the FTP command that will read the list
of files from the specified directory of the remote computer and you
need to use the getChunk method to actually retrieve the
directory’s information.
Inet1.Execute,
"DIR"
After connecting to the server, you can choose the file
from the remote computer to download by using the statement below:
Inet1.Execute, , "get" & remotefile & localfile
where remotefile is the file of the remote site and
localfile is the file of the local system. However, very often you need
to provide the full path of the local file, which you can do that by
modifying the above syntax to the following syntax:
Inet1.Execute , , "get" & remotefile & localpath & remotefile
The above statements will ensure that the remote file
will be downloaded to the location specified by the localpath and the
file downloaded will assume the same name as the remote file. For
example, the remote file is readme.txt and the localpath is
C:\temp , so the downloaded file will be saved in
C:\temp\readme.txt.
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