protected Response ExecCmd()
{
Response resp;
List <Listing> ret = Listing.GetListingByCategory(category, sortBy, isAsc);
if (ret.Count == 0)
{
resp = new Response(false, outputErrCategoryNotFound);
return(resp);
}
string outputS = "";
foreach (Listing item in ret)
{
outputS += item.ToString() + "\n";
}
resp = new Response(true, outputS.Substring(0, outputS.Length - 1));
return(resp);
}
