public JsonResult GroupDropList(string filterExpression)
{
GroupRepository rep = new GroupRepository();
if (HttpContext.Cache["GroupDropList"] == null)
{
DataTable list = rep.GetDropListSource();
HttpContext.Cache.Add("GroupDropList", list, null, DateTime.Now.AddMinutes(5), TimeSpan.Zero, CacheItemPriority.High, null);
}
DataTable source = (DataTable)HttpContext.Cache["GroupDropList"];
filterExpression = DFT.HandleExpress(filterExpression);
List <DropListSource> dropList = rep.DropList(source, filterExpression);
return(DropListJson(dropList));
}
