private void FillSimpleItems(Model model)
        {
            var actionDesc = model.supportedActions.ActionDescription.First(ad => ad.Name == model.action.Configuration.Type);

            var simpleItemDescs = actionDesc.ParameterDescription.simpleItemDescription.ToDictionary(sid => sid.name);
            var defaultValues   = simpleItemDescs.Values.ToDictionary(sid => sid.name, sid => XmlExtensions.ConvertXSValue(sid.type, null));

            simpleItemsValue.InitValues(defaultValues);


            var newValues = model.action.Configuration.Parameters.simpleItem.ToDictionary(
                si => si.name,
                si => XmlExtensions.ConvertXSValue(simpleItemDescs[si.name].type, si.value)
                );

            simpleItemsValue.SetValues(newValues);

            model.action.Configuration.Parameters.simpleItem = simpleItemDescs.Values.Select(sid => new ItemList.SimpleItem()
            {
                name = sid.name
            }).ToArray();
        }