getDisplayValue returning value from wrong field

[___miked___]

I have multiple fields on a form.   I'm trying to get the value of a choice-list field called 'patient_category'.   But, the following code always returns the value of another field on the form -- the patient_name field.   regardless of what field I specify as the getDisplayValue parameter, the system always returns the value of the patient_name field. I'm totally new to scripting in ServiceNow so am wondering what I am missing.    

function onChange(control, oldValue, newValue, isLoading) {

      if (isLoading || newValue == '') {

          return;

    }  

alert(g_form.getDisplayValue('patient_category'));

    }

Thanks in advance for your help.

[___miked___]

Thanks for the reply.   Unfortunately, the suggestions didn't solve the problem.

[sachin_namjoshi]

You can try this client script by changing <choicefield> to the name of your choice field.

This client script returns get all choice list values. Please modify accordingly.

1. var values = [];  
2. var sel = g_form.getElement('<choicefield>');  
3. for (var i=0, n=sel.options.length;i<n;i++) {  
4.   if (sel.options[i].value) values.push(sel.options[i].value);  
5. }  
6. alert(values.join(","));  

[shloke04]

As rightly mentioned by explorenow getDisplayValue() is a server side function and cannot be used in Client side. If you need to fetch the value of choice labels of a field better way would be to use a server side script and call the same on a client side.

For example : 1) In your scenario, write a Display   Business rule on your target table with a scratchpad variable as mentioned below:

g_scratchpad.val = current.patient_category.getDisplayValue();

2) After step 1, write an on Load/On Change Client script and call the above scratchpad variable as mentioned below:

function onLoad() {

//Type appropriate comment here, and begin script below

alert(g_scratchpad.val);

}

This should work for you.

Cheers,

Shloke

[___miked___]

Thank you for the reply.   Really appreciate the additional information.

[amlesh]

Try using this.

function onChange(control, oldValue, newValue, isLoading) {

      if (isLoading || newValue==="") {

          return;

    }

alert(g_form.getOption('u_patient_category', g_form.getValue('u_patient_category')).text);

    }