# Binding preview blue ⓘ prefix **URL:** \ **Category:** Ignition\ **Tags:** perspective, ignition81\ **Created:** [March 18, 2025, 10:06pm UTC](https://forum.inductiveautomation.com/t/binding-preview-blue-prefix/103850 "2025-03-18T22:06:18Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![hunterdg](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/hunterdg/32/67774_2.png) [@hunterdg](https://forum.inductiveautomation.com/u/hunterdg)\ **Post date:** [March 18, 2025, 10:06pm UTC](https://forum.inductiveautomation.com/t/binding-preview-blue-prefix/103850/1 "2025-03-18T22:06:18Z")
What does the blue **ⓘ** prefix indicate in otherwise-valid binding previews? ![CleanShot 2025-03-18 at 17.02.25](https://us1.discourse-cdn.com/inductiveautomation/original/3X/9/4/94f2fae8985a9e2db59e356eef9fba0c751a79df.gif) ---
**Author:** ![Transistor](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/transistor/32/3380_2.png) [@Transistor](https://forum.inductiveautomation.com/u/Transistor)\ **Post date:** [March 18, 2025, 10:29pm UTC](https://forum.inductiveautomation.com/t/binding-preview-blue-prefix/103850/2 "2025-03-18T22:29:03Z")
That's interesting. It seems to indicate that you have \> 12 characters in your string (inside the `' '`s). Delete any character and it goes away! Update: ![Expression tooltip](https://us1.discourse-cdn.com/inductiveautomation/original/3X/a/6/a6c8c3fdece41b93b2ed51084778eefd004ad78d.png) Hovering over the **ⓘ** gives a tooltip showing the whole result instead of the truncated version. ---
**Author:** ![hunterdg](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/hunterdg/32/67774_2.png) [@hunterdg](https://forum.inductiveautomation.com/u/hunterdg)\ **Post date:** [March 18, 2025, 11:22pm UTC](https://forum.inductiveautomation.com/t/binding-preview-blue-prefix/103850/3 "2025-03-18T23:22:16Z")
🤯🤯🤯 🤯🤯🤯 🤯🤯🤯 i’ve been wondering about this for literally years and never bothered to hover over the **ⓘ** instead of the string Update: no bueno. guessing you didn’t know about the hover-over-string trick? ![CleanShot 2025-03-18 at 18.23.56](https://us1.discourse-cdn.com/inductiveautomation/original/3X/1/c/1c7e2d80999ac364feb5f73aca8f3b08853e9c26.png) ![CleanShot 2025-03-18 at 18.29.57](https://us1.discourse-cdn.com/inductiveautomation/original/3X/b/8/b88a0689d86774c5ed12ac8670201391e233cd7b.png) ---
**Author:** ![hunterdg](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/hunterdg/32/67774_2.png) [@hunterdg](https://forum.inductiveautomation.com/u/hunterdg)\ **Post date:** [March 18, 2025, 11:37pm UTC](https://forum.inductiveautomation.com/t/binding-preview-blue-prefix/103850/4 "2025-03-18T23:37:49Z")
ah - you pushed me in the right direction - I think it’s a hint that the entire preview can’t be shown in-place, and perhaps an attempt to beckon a hover/surface the tooltip UX feature. Perhaps we’re saying the same thing? Though you’d think the … suffix would serve the same purpose. That was anticlimactic. I can’t believe I expected the tooltip to be unbounded for a moment there 😆 ---
**Author:** ![nminchin](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nminchin/32/6911_2.png) [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\ **Post date:** [March 19, 2025, 7:38am UTC](https://forum.inductiveautomation.com/t/binding-preview-blue-prefix/103850/5 "2025-03-19T07:38:21Z")
> [@Transistor](#): > > showing the whole result Well, we _wish_ it showed the whole result, but it's truncated still after a max length... I've got a feature request somewhere to give a better text field where the whole thing is visible to be able to copy as well ---
**Author:** ![andrew.budaiev](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/andrew.budaiev/32/72921_2.png) [@andrew.budaiev](https://forum.inductiveautomation.com/u/andrew.budaiev)\ **Post date:** [March 19, 2025, 8:06am UTC](https://forum.inductiveautomation.com/t/binding-preview-blue-prefix/103850/6 "2025-03-19T08:06:20Z")
> [@nminchin](#): > > I've got a feature request somewhere > **[Open long text in popup in binding preview | Ignition Features and Ideas |...](https://inductiveautomation.canny.io/ignition-features-and-ideas/p/open-long-text-in-popup-in-binding-preview)** > > Currently if a binding returns a long string, there’s no way to see the full contents: Can we please have a button to click to open the full contents in a ---
**Author:** ![hunterdg](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/hunterdg/32/67774_2.png) [@hunterdg](https://forum.inductiveautomation.com/u/hunterdg)\ **Post date:** [March 19, 2025, 11:38am UTC](https://forum.inductiveautomation.com/t/binding-preview-blue-prefix/103850/7 "2025-03-19T11:38:02Z")
I’ve seen those 👍 In case it’s not obvious: can just bind to a dummy prop and iterate with judiciously placed/commented `return value` or `{value}` lines, multiple chained transforms, and frequent use of the ‘apply’ button. Easy enough to right click \> copy on properties if necessary (and they format nicely as json/datasets with the table view) I usually have several chained transforms while developing/debugging, then put it all in one and right-click \> copy binding (on dummy prop), then right-click \> paste binding (on desired prop) when I’m done. and of course delete the dummy prop! for a fun time, copy a dataset property and paste it into a code editor/notepad!