Question

how do I used date on searching using Linq. I think I’m missing something on the declaration

string searchName = Request.Form["PersonName"];
DateTime searchDateFrom = Request.Form["ReceivedDateFrom"];
DateTime searchDateTo = Request.Form["ReceivedDateTo"];

var Results = (from va in _db.myTable
       where ((va.PersonName.Contains(searchName)
               && (va.ApplicationReceivedDate > searchDateFrom 
                   && va.ApplicationReceivedDate < searchDateTo)
               select va).ToList();

Answer 1

HttpRequest.Form is a NameValueCollection, where you can get strings in it by int/string indexer. That is, Request.Form["ReceivedDateFrom"] returns a string, you can’t assign it to a variable whose type is DateTime without any convert. You can try DateTime.ParseExact method to convert the string to a DateTime. But if you can’t guarantee the string has a correct format, you can use a TryParse method.