Catalog Client script not working in portal

[ServicenowDev19]

I have written catalog client script on variable set.Whenever i add record in multirow variable set i need to get record count in alert.This script is working when i exceute in TRY IT Scetion. But this script is not working in sp portal when i add row in multi row variable set.

I am geeting the error--Error There is a JavaScript error in your browser console 

Script:

function onSubmit() {

var mrvsStr = parent.g_form.getValue("additional_users");
var mrvsData = JSON.parse(mrvsStr).length + 1;
//var obj = JSON.parse(mrvsStr);
//var length1 = obj.length;
alert('Number of rows in MRV is - ' + mrvsData);
//parent.g_cart.setQuantity(mrvsData);
parent.g_form.setValue('price',mrvsData);

return true;

Please help me why this script is not working in portal.

}

[Teja11]

can you share the error as well

Navigate to inspect element - > console  and send a screenshot of that

[ServicenowDev19]

I am getting this error:

[manjusha_]

@ServicenowDev19 

Remove parent and use as below

var mrvsStr = g_form.getValue("additional_users");

Thanks,

Manjusha Bangale

[Anil Lande]

hi,

Please ty below API to access parent form variables including MRVS.

https://docs.servicenow.com/bundle/utah-api-reference/page/app-store/dev_portal/API_reference/g_serv...

also check below link:

https://rubenferrero.com/servicenow/multi-row-variable-set-form-communication/

[Anil Lande]

Hi,

Below part work in portal view:

add below line in onLoad client script of your cat Item (on Main form).

this.my_g_form = g_form;

Update your onSubmit client script like below. (only for portal)

function onSubmit() {
    var mrvsStr = this.my_g_form.getValue('additional_users') || '[]';
 
    var mrvsData = JSON.parse(mrvsStr).length + 1;
    //var obj = JSON.parse(mrvsStr);
    //var length1 = obj.length;
    alert('Number of rows in MRV is - ' + mrvsData);
    //parent.g_cart.setQuantity(mrvsData);   
    this.my_g_form.setValue('price', mrvsData);

    return true;
}

Note:  You may need to create dedicated scripts for portal and Native UI. or use logic in same script for both UI and use if condition to run script part based on UI.