?
Solved

ProgressBar for xmlHttpRequest

Posted on 2006-11-24
2
Medium Priority
?
409 Views
Last Modified: 2007-01-05
hello,

I have an activeX app which is used to upload and download files, the way is does this is by encoding and decoding the files into xml then using the xmlHttpRequest method in VB to and from asp pages on the server which encode/decode (depending on up or download) and save the faile back in its original state.

To get round the progressbar issue over http what I have done is calculate the file size , estimate the network speed then divide the file size by network speed, set a progressbar max value to the result and fire off a timer which runs until the progressbar reaches its max value.

This isnt too inaccurate but I can forsee future inaccuracies with larger / smaller files and varying internet speeds.

SO can anyone suggest a way or gettting the progress of a file transfer using the xmlHttpRequest object

e.g getBytesLoaded in action script?

many thanks.

 
0
Comment
Question by:wdhough
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 19

Accepted Solution

by:
BrianGEFF719 earned 750 total points
ID: 18151068
The only problem you will have is correctly determining remaining time.

Your system will work perfectly for displaying progress, however, if you want to display time remaining, I suggest you simply take an average.

 dim startTime as date
 dim bytesTransfered as long
 dim eSec as long
 dim rate as long
 dim totalBytes as long


 startTime = now



 eSec = datediff("s",now,startTime)
 rate = bytesTransfered / eSec 'bytes per sec


Does that make sense?
0
 

Author Comment

by:wdhough
ID: 18157380
yeah wicked thanks.
0

Featured Post

New benefit for Premium Members - Upgrade now!

Ready to get started with anonymous questions today? It's easy! Learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Article by: Martin
Here are a few simple, working, games that you can use as-is or as the basis for your own games. Tic-Tac-Toe This is one of the simplest of all games.   The game allows for a choice of who goes first and keeps track of the number of wins for…
Background What I'm presenting in this article is the result of 2 conditions in my work area: We have a SQL Server production environment but no development or test environment; andWe have an MS Access front end using tables in SQL Server but we a…
Get people started with the utilization of class modules. Class modules can be a powerful tool in Microsoft Access. They allow you to create self-contained objects that encapsulate functionality. They can easily hide the complexity of a process from…
This lesson covers basic error handling code in Microsoft Excel using VBA. This is the first lesson in a 3-part series that uses code to loop through an Excel spreadsheet in VBA and then fix errors, taking advantage of error handling code. This l…
Suggested Courses
Course of the Month13 days, 12 hours left to enroll

800 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question