IE control; Offline property

Posted on 2000-04-11
Last Modified: 2013-11-25
I'm developing a control that contains the Internet Explorer.  This controls updates the explorer from time to time with a file locally located on the disk.
So I put the OffLine property of the IE to True, but after reopening the project, the property hasn't been saved, so it's put to False again, and I'm having trouble again.  Putting it Offline at run time doesn't seem to help.

Can anyone help me please?
Question by:guntherds
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
  • 4
  • 3

Expert Comment

ID: 2703689
Hi guntherds,

Don't use the Offline property of the WebBrowser Control. It doesn't work. You can use WinInet API to do it. Download my CWinInetConnection class from This class allows you to detect the Internet connection and its properties, establish and hang up the connection, switch the system state known as Online/Offline mode.

Good luck and welcome to

Author Comment

ID: 2705768
but how can I use this with the IE control, my control is never going on the internet, it just updates an HTML file that some other component/application is updating.

Please help me further, you will get the points.

Author Comment

ID: 2705779
see above comment
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!


Expert Comment

ID: 2706713
If it is clear to me, you want to be able to set Offline/Online mode for the instance of the WebBrowser control. It is impossible by design, but you can change this mode for a whole system. My class allows you to do it. And it is not clear to me why you want to set Offline mode for your task.

To set Offline mode in your application put the following code to the Form_Load event procedure (you can choose another location for the code):

Private Sub Form_Load ()

Dim oConnection As CWinInetConnection

Set oConnection = New CWinInetConnection

'now your WebBrowser control works in Offline mode
Set oConnection = Nothing

End Sub

Author Comment

ID: 2706775
I'm willing to use the Offline/onLine property just because the system (it's even a POS system) is never going on the internet, it just has to show an HTML file (locally on the disk, or network).  So I thought to set the OffLine property on True
If I leave it on false, it given the error page .  
Or is it possible that I'm doing something wrong?  I'm passing the follwing string "D:\Temp\POSTransactionLine.HTM" to the Navigate method.


Accepted Solution

gelog earned 100 total points
ID: 2706806
I've disconnected and tested your case right now (using Navigate method with local path) and never got an error. The local page is available to the WebBrowser control in any mode. What kind of error you got?
LVL 28

Expert Comment

ID: 2718638
just posting a comment to see if i can figure out what hes trying to do as well

Author Comment

ID: 2758640
I've tested your solution, works well
But i've found a more simple one, put the url to about:blank at the start and everything works well

Thanks for helping me

Featured Post

Online Training Solution

Drastically shorten your training time with WalkMe's advanced online training solution that Guides your trainees to action. Forget about retraining and skyrocket knowledge retention rates.

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…
Since upgrading to Office 2013 or higher installing the Smart Indenter addin will fail. This article will explain how to install it so it will work regardless of the Office version installed.
Get people started with the process of using Access VBA to control Outlook using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Microsoft Outlook. Using automation, an Access applic…
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…

696 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