Conditional read-only field based on another dropdown field

Question

I'd like a dropdown field's selection to trigger a read-only text field to appear below it. That text field may need to be multi-line content. Can anyone share how do I do this with JavaScript applied to that dropdown field?

try67 · Accepted Answer

Yes, but then you would need to either use a different field or to set the field's value, instead of its display.

For example:

if (this.getField("Dropdown1").valueAsString=="Option1") event.value = "text in English";

else if (this.getField("Dropdown1").valueAsString=="Option2") event.value = "texto en Español";

try67 · Answer

Let's say that fielda are called "Text1" and "Dropdown1" and you want to show the former if "Option1" is selected in the latter. Use this code as the custom calculation script of the text field:

event.target.display = (this.getField("Dropdown1").valueAsString=="Option1") ? display.visible : display.hidden;

Then just set the text field's default value to the desired text, and set the drop-down to commit the selected value immediately, and you're done!

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