Question

if i have the following to access an sql database for a date to compare it to a string that a user enters:

public IQueryable<Audit> FindAllAuditsByNameDate(String name, String date)
        {
            return from audit in db.Audits
                   where audit.EventTime.ToString().Contains(date) && audit.User.UserName.Contains(name)
                   orderby audit.User.UserName
                   select audit;
        }

it fails is the user enters the “/” character in a date. how do i work around this?

Answer 1

Try DateTime.Parse. It’s able to understand a lot of the common formats for entering DateTimes.

DateTime dateStart = DateTime.Parse(date);
DateTime dateEnd = dateStart.AddDays(1);

return from audit in db.Audits
       where audit.EventTime >= dateStart &&
             audit.EventTime < dateEnd &&
             audit.User.UserName.Contains(name)
       orderby audit.User.UserName
       select audit;

If DateTime.Parse doesn’t parse the format you want, you can always use DateTime.ParseExact and provide your own format strings.