Is it possible to display field value by combining two fields?

[Thrupthi]

I have two fields on my form

1. Provider

2. Associated Phone Number

I want the third field "Name" to display by combining the value of these two fields

Example:

Provider = Sim

Associated phone number = 12345

Name = Sim - 12345

Can we achieve this?

[Thrupthi]

The field name is just "name"

It displays me the value on save as expected

But i am facing issue when i go to Mobile phone form record, and if i try to select this name (As i have given reference of Sim table) to that it will show me the value but pops out when i select, i cant select it or retrieve this information. I feel its because the SIM name gets selected by combining the provider and phone number information? Not really sure could you please help

[Cody Smith _ Cl]

What do you mean "Pops out"?

[Thrupthi]

I mean to say the names which are saved with the help of this script cannot be selected; like in i get an option to click on it but it do not consider the values, it just emerges out 

[Prateek kumar]

Make Name field a calculated value.

Right click on the name field and configure dictionary. Check calculated check box and add this in the script.

(function executeRule(current, previous) {
var provider= current.provider_varible;  //replace variables correctly
var phone= current.assosciated_phone_variable //replace variables correctly
var result = provider +'-'+phone;
return result;

})(current, previous);

[Thrupthi]

No even this does the same, the value just emerges out upon selection and it will not allow to save the record