private bool SetHtmlAttributesChecked(bool isSelectedByDefault, IMultiSelectLookupValueField lookupValueField, IEnumerable <IMultiSelectLookupValueField> dataStoreValues)
        {
            if (_checkboxListBuilderDataContainer.Mode == Mode.Create)
            {
                return(isSelectedByDefault || lookupValueField.IsSelected);
            }
            var dataStoreValue = dataStoreValues.FirstOrDefault(o => o.Value == lookupValueField.Value);

            return(dataStoreValue != null && dataStoreValue.IsSelected);
        }
 private static string SetSelectedItemInOptionElement(IMultiSelectLookupValueField item)
 {
     return(item.IsSelected ? "selected=\"selected\"" : string.Empty);
 }