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Methods for cross-session data sharing #1513
Description
Darren asked 2018-04-26 20:09:45 UTC
Hi,
Being new to web development, I'm getting caught out by all sorts of "webby" things :-)
I can't find any information on methods to share data between sessions. I understand that I could perhaps use the good ol' text file or database, but is there another way? Some kind of global variable storage in a known location for all sessions to access, for example?
A vb example would be most appreciated.
Thank you
Darren
Activity
itg-assistant commentedon Jun 13, 2026
Luca answered 2018-04-26 20:13:35 UTC
Anything static is shared. In VB.NET it's probably either static or shared:
https://docs.microsoft.com/en-us/dotnet/visual-basic/language-reference/modifiers/shared
https://docs.microsoft.com/en-us/dotnet/visual-basic/language-reference/modifiers/static
itg-assistant commentedon Jun 13, 2026
Tiago (ITG) answered 2018-04-26 20:44:45 UTC
Static variables in C# are Shared variables in VB :)
itg-assistant commentedon Jun 13, 2026
Darren answered 2018-04-26 21:23:55 UTC
Thank you both, however while attempting to test this I’ve run into another peculiarity.
I run the project and a session opens in IE and works as expected. The IE tab is labelled “WebDesktopApplication1”.
I then open another tab and paste in the same url (i.e. http://localhost:45035/) – but this page isn’t updating at all. Values are frozen from the time it loads and it appears to be just a static html page. This tab is labelled differently as just “Localhost”.
What on earth is happening here?
Thanks
itg-assistant commentedon Jun 13, 2026
Tiago (ITG) answered 2018-04-26 22:26:09 UTC
May I suggest you download the “Simple Chat” example from https://wisej.com/examples/ . Try it on two different browsers and you’ll see that when you type on one browser, the “other” browser doesn’t get updated until you click it.
itg-assistant commentedon Jun 13, 2026
edmond girardi answered 2018-04-29 22:55:11 UTC
Make sure you are running in WebSockets mode – if you are Visual Studio running on Windows 7 – no websocket support.
itg-assistant commentedon Jun 13, 2026
edmond girardi answered 2018-04-30 14:45:23 UTC
You could make a static class that contains a dictionary and store data to be shared with multiple sessions. Lookup the key value and grab the object – you key would have to be something commonly known – like a Department ID or Company ID – something like that.