| What is HTTP File Upload ActiveX Control? |
HTTP File Upload
ActiveX Control is the best solution for your web sites to upload
thousands of big files from a user machine to the web server
via HTTP protocol.
Support BreakPoint uploader, Don't
worry about unreliable or slow connections. If an upload fails
before completion, it is resumed from the point of failure so
time and bandwidth are never wasted.
HTTP File Upload ActiveX Control
with a user-friendly and easy-to-use uploading interface. even
for untrained users ,they can use it easy.
You
overcome the limitations of traditional form-based uploading.
With HTTP File Upload ActiveX Control, the mode to upload files
via HTML input fields will be history.
HTTP File Upload ActiveX control
support batch files, allow multiple file selection and recursive
directory selection. |
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| The Limitation of traditional form-based Upload |
In a pure-HTML solution, client
files can be uploaded to the server via a multipart/form-data
form with one or more <INPUT TYPE=FILE> items on it. However,
the form-based approach has the following limitation:
The
"Choose File" dialog shown by a browser does not
allow multiple selections.
To upload multiple files at once, the HTML form must contain
multiple <INPUT TYPE=FILE> boxes, and each file must
be selected individually.
An entire folder cannot be selected for uploading.
Didn't support big file upload, if an upload fails before
completion, it must must upload over again from original position,
it means couldn't BreakPoint upload
Default values for the file names cannot be pre-set (browsers
do not allow it for security reasons).
There is no way to set a default directory for the Choose
File dialog box.
There is no way to specify file filters to be displayed
in the Files of Type box of the "Choose File" dialog.
There is no way to put a limit on the type, size and number
of files being uploaded before an upload begins.
File date information cannot be preserved.
Using HTTP File Upload ActiveX Control instead of an HTML
form helps overcome these and many other limitations of traditional
form-based uploads.
While HTTP File Upload ActiveX Control is primarily intended
to be used on web pages viewed by Microsoft IE, it can also
be used in custom applications written in VB or any other
language supporting COM.
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Features summary of HTTP File Upload
ActiveX Control |
| Upload data use the standard HTTP format, support batch
file upload.
Support BreakPoint uploader, Automatic BreakPoint
uploader if an upload fails before completion,
it is resumed from the point of failure so time and bandwidth
are never wasted.
Control the pack size automatically accordding to
the condition of network, avoid the bindwidth throttling.
Ability to specify a limitation for the total upload
size, uploaded files count, single file size, and filters
for the file types before an upload begins.
Ability to attach additional forms to the uploading
data(input, select, and textarea fields).
A progress bar which indicates accurate information
about the upload process.
Fires events for client-side VBScript, JavaScript
and VB apps to handle.
Drag-and-drop support.Ability to add files by shortcut
key Ctl+C Ctl+V
With File uploader,file transfer sizes can reach 5
GB with minimal server resources
You can set the save path dynamic in server side.
Support network shares path. Ability to specify user, so can
increase the safety
Support various proxy(HTTP, Socket4, Socket5 and so
on)
Memory friendly even for huge number of uploaded files.
File Uploader is a smart component which developed
in ATL/WTL, it independent of MFC library. The size of CAB
only 123Kb, compress more small.
Ability to redirects a browser to another page upon
completion of an upload. |
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