datetime-comparison

my C# unit test has the following statement: Assert.AreEqual(logoutTime, log.First().Timestamp); Why it is failed with following information: Assert.AreEqual failed. Expected:<4/28/2010 2:30:37 PM>. Actual:<4/28/2010 2:30:37 PM>. Are they not the same? Update: Use this if you only care to second: Assert.AreEqual(logoutTime.ToString(), log.First().Timestamp.ToString()); Dinah Have you verified that the number of ticks/milliseconds are equal? If you do DateTime.Now() twice back to back, they will appear to be the same number down to the minute and probably even down to the second , but they will

i want to check var check_val in between two time var open_time and var close_time var open_time = "23:30"; var close_time = "06:30"; var check_val ="02:30"; if(Date.parse ( check_val ) > Date.parse ( open_time ) && Date.parse ( check_val ) < Date.parse ( close_time )){ var flag=1; } else { var flag=2 } the result is always else part Date.parse() accepts dates in RFC2822 or ISO8601 formats. In your case, it always returns NaN . Date.parse("23:30"); // NaN Using the appropriate Date format works as expected: var open_time = Date.parse("2011-10-09T23:30"); var close_time = Date.parse("2011-10

I just noticed what seems like a ridiculous flaw with DateTime comparison. DateTime d = DateTime.Now; DateTime dUtc = d.ToUniversalTime(); d == dUtc; // false d.Equals(dUtc); //false DateTime.Compare(d, dUtc) == 0; // false It appears that all comparison operations on DateTimes fail to do any type of smart conversion if one is DateTimeKind.Local and one is DateTimeKind.UTC. Is the a better way to reliably compare DateTimes aside from always converting both involved in the comparison to utc time? Abel Edited, my original answer was partially incorrect: When you call .Equal or .Compare ,

Please help. I am trying to figure out how to use DATE or DATETIME for comparison in a linq query. Example: If I wanted all Employee names for those who started before today, I would do something like this in SQL: SELECT EmployeeNameColumn FROM EmployeeTable WHERE StartDateColumn.Date <= GETDATE() //Today But what about linq? DateTime startDT = //Today var EmployeeName = from e in db.employee where e.StartDateColumn <= startDT The above WHERE doesn't work: Exception Details: System.NotSupportedException: The specified type member 'Date' is not supported in LINQ to Entities. Only initializers,