public ActionResult Lists(int?act, int?type, int?id, string value)
{
switch (act)
{
case 1:
if (type != null)
{
db_man.AddRefItem((int)type);
}
break;
case 2:
if (id != null)
{
db_man.DelRefItemById((int)id);
}
break;
case 3:
if (id != null && value != null)
{
db_man.UpdateRefItem((int)id, value);
}
break;
}
return(View(db_man.ReferenseBook));
}