Is there an equivalent to system.db.refresh() for Ignition Edge installations? I want a function similar to a refresh button for a Power Table’s Data property. In the past I have used something like the following on a propertyChange script:
Ultimately, I think we can all agree that this refresh() function does not belong in
system.db.*. In the meantime, what can I do about this? Is there a way to get around this? Perhaps a different way to refresh?
Edit: This is a Vision Application
Hi @etknorr, where is your data being derived from?
@nminchin I deleted it because there was the mention of the ‘Power Table’ so I assumed we were talking Vision
But you’re right the OP doesn’t mention which is being used, so I guess that is the true question
To ass-u-me is to make an ass out of you and me
True, I passed right by that detail haha. I guess we’ll find out if it answers the question or not!
Edit : actually the more I read it now, the more I think you’re right, it is for Vision, since the db library doesn’t exist in Edge…
I think your only option is to do some dodgy way like incorporating another property into the binding to force it to reevaluate the binding. For example an if statement with a custom bool property as the condition and both results set to the dataset. Then just toggle the bool to refresh:
@nminchin it was an early start for me, and likely a late start for you? We both fell into the same trap
I was thinking along the same lines, which is why I was interested on where the data was coming from (and whether it even needed to be refreshed, for example if bound to a tag it should update automatically on a tag change)
Thanks for the tips @nminchin and @matthew.ayre ! Sorry for not being clear, this is a Vision application I’m working with.
Background, I am using a script to process several tags into a single dataset.
Instead of refreshing the binding, I just ran the script again on PropertyChange and set it to the data property like this:
if event.propertyName == 'refresh':
if event.newValue == True:
event.source.data = ProjectScripts.prodToDataset()
event.source.refresh = False
Thanks again for the tips!