Hi, In Perspective, is there a way in an Expression binding to have a dynamic path to a property of a component on the view ? Here's the structure that I have: [image] I want to apply a style to the numeric field "limit" depending on the value of the numeric field "entry". Here's my code for now…

Have you tried property() ? https://docs.inductiveautomation.com/display/DOC81/property

In case you ever need to do something in a script, this topic covers that, [image] Indirect property reference Ignition Is there a way to do an indirect property using a nested property within another property path in an expression? This would be for read-only use and is …

Thanks that should work, but I'm not able to write the right path, I tried property("../" + {parent.meta.name} + "_entry.props.value") and some other things but it doesn't work, can you give me a clue ?

Well I tried to add a script below the Expression binding, I was able to make it work but the problem that I had is for the update. The style was updated when I refreshed the page, and I want the style to be updated when I change the values.

Not really following, if you change the style, then the style should update. Try changing the style in the designer to see it working, just type it in for now. You'll need to show more of your work to really know what's going on.

Sure, I tried this: [image] Basically I want to change the style of a field depending of the values of this field and another field. When I tried with this script it worked, but the style was updated only when I refreshed my page, while I want the script to be updated when I enter a wrong value

Hover over the expression error and it will show you details on the error. From your screenshot, there is something wrong with the expression.

Yeah it's "normal" because the value of this field is dynamic, it depends of the page I open so the expression can't find a value in the designer, but it's actually working. The problem is for the update, the style change when I refresh the page By the way I had something similar in the past, I had…

The transform will only execute when the expression value changes, so keep that in mind.

Oh okay that makes sense! I understand now, thanks for that I guess I will try to solve my initial problem with just an expression, but can you help me for a last thing ? I'm not able to write properly the path of the property I want in the property() function. This is the initial path : {../Cond…

Expression binding, dynamic path to a property?

Ignition

Kevin.Herron August 17, 2023, 7:09pm 17

It's in both those places...