ULC & File downloads

vsolomonidou · Post by **vsolomonidou** » Thu Dec 10, 2020 10:48 am

Hi,

We have a system with a single server and a number of ULCs and desktop UIs.

We are using the built in Trend functions and panels, where we are able to save trends via the desktop UI to the local machine.
This is not possible with the ULC. My understanding is that all file operations are executed on the server, thus I'm looking for alternative ways of implementing this. Can I use netget function calls with FTP from the ULC to the server, so I can download the trends from a specific folder within the server? What is the best approach? Also, I know that system calls work on desktop UIs, but what about the ULC?

Thanks,

Vaso

gschijndel · Post by **gschijndel** » Fri Dec 11, 2020 1:35 pm

To run something on the ULC UX client browser you could use the WebView EWO with the property 'ulcClientSideWidget' set. Inside this widget you could provide a download link or a JavaScript trend with download option.

A JavaScript trend example can be found in the documentation under: Graphics editor (GEDI) -> Complex graphics objects -> EWO (External Widget Object) -> WebView EWO -> JavaScript Interface Examples -> Trend Example

vsolomonidou · Post by **vsolomonidou** » Tue Dec 15, 2020 11:59 am

Thanks for this.

I forgot to mention that we are using version 3.15. Is the client widget available in this version?

If not, are there any alternative ways of implementing this (via a netGet command or a system call)?

Thanks,
Vaso

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