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NetTalk Web Server => Web Server - Ask For Help => Topic started by: rupertvz on April 21, 2025, 09:39:41 AM

Title: Refresh NWB Header
Post by: rupertvz on April 21, 2025, 09:39:41 AM

Hi All,

I have a value in the NWB header.
I would like to "refresh" this value, every time a new record is added via the NWF.

I tried enabling the option "Refresh Header on Save", but the NWF hangs when this option is selected.
Is there another way to refresh the value in the NWB header?

Title: Re: Refresh NWB Header
Post by: Niels Larsen on April 21, 2025, 09:43:38 PM

Hi

When I do this, I use a host value updated via websocket. Then all logged in users see the value immediately.

/Niels

Title: Re: Refresh NWB Header
Post by: rupertvz on April 22, 2025, 02:30:54 AM

Thank you Niels,

I have not yet updated hostvalues via WebSocket.
Are you able to give me a little direction?

Title: Re: Refresh NWB Header
Post by: Jane on April 22, 2025, 10:10:23 AM

Check the web34 "Calculator" example app.
The Performance procedure has stats updated with websockets.  (It's not on the menu so you need to enter the URL manually in your web browser.)
On the fields in the template, notice the "Live via WebSocket" checkbox ticked.

Check out this: https://www.capesoft.com/docs/NetTalk14/NetTalkWebBasic.htm#WebSockets
And search for "socket" on this page: https://www.capesoft.com/docs/NetTalk14/NetTalkWebFunctionality.htm#NetWebForm

If you have Bruce's book "Developing Web Applications with NetTalk - Fourth Edition" you can read the chapter on Web Sockets.

Title: Re: Refresh NWB Header
Post by: Bruce on April 23, 2025, 07:18:51 PM

define what you mean by "browse header" ?

Title: Re: Refresh NWB Header
Post by: rupertvz on April 25, 2025, 01:19:17 AM

Hi Bruce,

Kindly see attached for the HTML section for the NWB.

Regards
Rupert

Title: Re: Refresh NWB Header
Post by: Bruce on April 25, 2025, 10:46:32 PM

ahhh - so when you said "the browse header" you meant in a routine that you happened to name "header".
A small detail, that probably matters with regard to the answers.

The item you are updating in this header, is it specific to this user, or common across all users using the server? It seems like it's a value unique to this user?

Your best option is to make a small example app showing what it is you want to do, and I can look at that and suggest something from there...

Cheers
Bruce