Refresh perspective component on tag change

Ignition
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1

Is it possible to refresh a perspective view component on tag change?

Specifically, I am after updating a table which I have previously updated using self.refreshBinding("props.data") through a message handler for user triggered events. However I would like to also trigger a refresh for a gateway event that flags completion with a tag change.

2

The same message handler method is the answer here. You just have to reference the project in the call.

https://docs.inductiveautomation.com/display/DOC81/system.util.sendMessage

3

I'm getting an error trying to do that. The message handler needs to be initiated from the gateway but received by all browser sessions currently open.
I'm sending:

system.util.sendMessage("Enterprise", "refresh", {"target":"target_test"},"CG")

I've set up a label in a view with a message handler called "refresh" and ticked all the listen scopes (Session,Page,View):

def onMessageReceived(self, payload):
	target = payload["target"]
	if target == "target_test":
		self.props.text = "message received"

I've tried setting the scope to send the message with to different combinations of "C","G" and "S" but it either isn't received or when set to "G" I get a gateway error logged because there isn't any message handler defined in the gateway scope.

Any ideas what I'm doing wrong?

4

You need to add a message handler in session events that will the broadcast a component level message using system.perspective.sendMessage.