Control value and form event level for which auto declaration must be set true

[FormControlEventHandler(formControlStr(EcoResProductCreate, OKButton), FormControlEventType::Clicked)]

public static void OKButton_OnClicked(FormControl sender, FormControlEventArgs e)

{

       FormRun             element       = sender.formRun();

       //form control

       FormControl         modelGroupRef = element.design(0).controlName("ModelGroupId");

        Info(strfmt(“Model Group %1”, modelGroupRef.valueStr()));

       //form parameter

       ItemId              itemId        = element.parmItemId();

}