Multi-select Option Set field - Set a maximum number of choices

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Posted on by dynamicallyndsey

Hello!

Anyone know if it is possible to enforce a maximum number of choices on multi-select option sets?

Ideally, we would like a multi-select option set field on a form but only allow a maximum of 2 choice selections.

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Community Member on at

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Hi Partner,

You need use js code to enforce a maximum number of choices on multi-select option sets in the form.

JS:

function maximumNumber(executionContext) {

var formContext = executionContext.getFormContext();

var multiSelect = formContext.getAttribute("new_intendedproductusers");// get multi-select option sets field

var selectedOptions = multiSelect.getSelectedOption();

if (selectedOptions != null) {

if (selectedOptions.length > 2) {

alert("only allow a maximum of 2 choice selections");

multiSelect.setValue(null);

}

}

}

Go Settings > Customizations > Customize the system > Web Resource to add new:

Go Settings > Customizations > Customize the system > Entities > One entity you need > Forms to open one main form you need.

Save and publish all customizations.

Test:

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dynamicallyndsey 10 on at

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Thank you so much Leah!

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Community Member on at

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Hi Partner,

Can you click Yes under "Did this answer your question?" to close this thread if my answer is helpful.

Thanks in advance!:)

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karthikt29 3 on at

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Hi, The answer on this post is very helpful, but I am also looking to limit it to only two options instead of setting the value to null. Is there a way to deselect the third option and show only two options onColumnChange

I already tried

multiSelect.setValue(selectedOptions.slice[0,2]);

but the above don't work sometimes, in fact many times.

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