Display error message on checkbox if drop down selected

Question

I have a checkbox named 'NoLieu' and a dropdown list named 'AbsenceType'. Is it possible to display an error message and/or disable the user from being able to check the box if the user selects from one of the options in the Absence Type dropdown list? Even better, if an error message could also appear if the user checks the No Lieu box first and then selects an option from the Absence dropdown list too. I don't want them to be able to check the 'No Lieu' box at all if they select an Absence Type option.

Thanks!

ls_rbls · Accepted Answer

Hi,

In the custom calculation script of your dropdown field, you can use something like this:

var a = this.getField("No Lieu").value;
var b = this.getField("Absence Type").valueAsString;


if(a=="Off") event.value=b;
else if (a=="Yes") event.value="";
if ( (b!=="") && (a=="Yes") ) app.alert("PLEASE NOTE: Only one selection is allowed",0);

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