Client script to check if more than one fields change on a form

[antonymirza]

We can use onChange client script to check if any one of available fields on the form changes. I need to write an client script for two form fields, I mean script should run if any one of them changes.How can we achieve it?

[andrew_venables · Accepted solution]

As abhishekte suggests, you will need two client scripts on kb_knowledge, but you can use a third to put your key code in one place:

Name: FieldA Change

Active: Checked

Global: Checked

Type: onChange

Table: Knowledge [kb_knowledge]

Field name: FieldA

Script:

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

   if (isLoading || newValue == '') {

           return;

   }

   kbMyFunction();

}

Name: FieldB Change

Active: Checked

Global: Checked

Type: onChange

Table: Knowledge [kb_knowledge]

Field name: FieldB

Script:

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

   if (isLoading || newValue == '') {

           return;

   }

   kbMyFunction();

}

Then you need to define the shared function that both scripts will call, so create a third new Client Script:

Name: kbMyFunction

Active: Checked

Global: Checked

Type: onLoad

Table: Knowledge [kb_knowledge]

Script:

function onLoad() {

       // do nothing

}

function kbMyFunction() {



       var fielda = g_form.getvalue('u_fielda');

       var fieldb = g_form.getvalue('u_fieldb');



       if (fielda != '' && fieldb != '') {

               alert('Sending GlideAjax');

               var ga = new GlideAjax('HelloWorld');

               ga.addParam('sysparm_name','helloWorld');

               ga.addParam('sysparm_u_fielda',fielda);

               ga.addParam('sysparm_u_fieldb',fieldb);

               ga.getXML(HelloWorldParse);

       }

}

function HelloWorldParse(response) {

       var answer = response.responseXML.documentElement.getAttribute("answer");

       alert(answer);

}

See GlideAjax - ServiceNow Wiki for how to use GlideAjax.

[antonymirza]

Dear Andrew & Abhishek,

Thank you for sharing your input and expertise. I am done with my requirement and it works

Brgds, AM

[Lavlesh Garg1]

andrew.venables very very helpful, been looking for this for a few days. Thanks a ton !!!

Regards,

LG