performFormLookup

public void performFormLookup(FormRun _form)
{
    FormDataSource      formDataSource;
    Query               formquery;
;
    formDataSource  = _form.objectSet();
    formquery       = formDataSource.query();


    formquery.dataSourceNo(1).addRange(fieldnum(ProjTable, ProjGroupId)).value(queryValue(ProjGroupIdFilter.text()));
    super(_form);

}