On change client script issue for reference variable

[RudhraKAM]

We have a table (cmdb_ci_appl)  where there is no Display value. 

we have a catalog item in which we have a reference field, on selecting the 1st field we need to populate the 3 other fields.

How to set the app ID ( which is highlighted) upon selecting? ( as of now it is defaulting to name , which is on the left side)

Below is the Onchange CS script ( for some reason when the ID is selected it is not setting the name in the name field (name is of string type on the table ) 

function onChange(control, oldValue, newValue, isLoading) {
    if (isLoading || newValue == '') {
        return;
    }

    var AppID = g_form.getReference('citrix_application_id', SetApplicationvariables);

    function SetApplicationvariables(AppID) {

        g_form.setValue('citrix_application_name', AppID.name);
        g_form.setValue('citrix_application_version', AppID.version);
        g_form.setValue('citrix_application_vendor_name', AppID.u_common_name);

    }

}

[John Dahl]

First... the Display Value piece. Even if a table does not have a field designated, ServiceNow uses the following sequence to determine a display value:

1. A field with display=true in the system dictionary on the lowest sub-table for extended tables.
2. A field with display=true in the system dictionary on the parent table.
3. A field named name or u_name.
4. The Created on field of the referenced record.

Secondly, you are getting a GlideRecord for the AppID and accessing GlideElement objects for the field assignments. Try explicitly converting the GlideElements to string before setting the value:

g_form.setValue('citrix_application_name', AppID.name + '');

[RudhraKAM]

For the display value piece, is there a way to solve this by adding any script? without changing or setting the display value?

I tried replacing the line with yours but still not working.

[Ankur Bawiskar]

Hi,

if you don't set any field as Display=True then ServiceNow shows/follows the sequence mentioned by John

script looks fine to me

Regards
Ankur

[RudhraKAM]

Can we set that via attributes? as of now I am using the below in the attribute section

ref_ac_columns_search=true,ref_auto_completer=AJAXTableCompleter,ref_ac_columns=u_number,ref_ac_display_value=false