ActivateField on a PicklistBusComp

Hello,

I'm currently working on an application where I can see 2 ways to search a record in a PicklistBusComp

Here is an example :

function setFieldFromPickListApplet()

{

    var bcRandom = this.GetPicklistBusComp("Some Field");

    bcRandom.ClearToQuery();

    bcRandom.ActivateField("The name of some field in the PicklistBusComp");

    bcRandom.SetSearchSpec("The name of some field in the PicklistBusComp", "a value of some field");

    bcRandom.ExecuteQuery(ForwardOnly);

    if(bcRandom.FirstRecord()){

        bcRandom.Pick();

    }

}

Do I need to use ActivateField before doing the SetSearchSpec with bcRandom.ActivateField("The name of some field in the PicklistBusComp") ?

What is the best practice ?

Thanks a lot for your time.

Regards,