Unable to create date with current time from string

Question

I am taking selected date from telerik date picker and want to take that selected date and current system time by 24 hours format and want date like this:

For Ex: Current Date = dd/mm/yy HH:Minutes:Seconds

21/1/2016 14:48:21

This is my code:

DateTime dt = DateTime.ParseExact(Datepicker1.SelectedDate.Value.ToShortDateString(), "dd/MM/yyyy", CultureInfo.InvariantCulture);//Error:String was not recognized as a valid DateTime.

Datepicker1.SelectedDate.Value= {1/21/2016 12:00:00 AM} 
Datepicker1.SelectedDate.Value.ToShortDateString()=1/21/2016 

Error:String was not recognized as a valid DateTime on Datetime.ParseExact.

Answer 1

Change your format in the ParseExact from

"dd/MM/yyyy"

to

"M/d/yyyy" or "M/d/yyyy h:m:s tt" //the first one use .ToShortDateString(), the second one for 1/21/2016 12:00:00 AM

The first one only takes care for case like 21/12/1997

The second one takes care 12/21/1997, 2/21/1997, 12/2/1997, and 2/1/1997 in addition to take care of time info

Also, note that you may consider to have multiple formats (just in case): "d/M/yyyy H:m:s", "d/M/yyyy h:m:s tt" to take care of the case where day and month are swapped and when you have AM/PM.

MSDN link.

Answer 2

@yourDateTime.FormattedReviewDate.ToString("MMM dd,yyyy")

You might even just add a simple property to dateTime for the formatted display:

public string FormattedReviewDate
{
    get { return ReviewDate.ToString("MMM dd,yyyy"); } 
}

Note: Give your needed format

Answer 3

You don't need to parse anything.

Your Datepicker1.SelectedDate.Value is already DateTime, just assign this value to your dt variable.

DateTime dt = Datepicker1.SelectedDate.Value;

If you want to get it's string representation based on your format, just use ToString method with proper format.

string formattedDate = dt.ToString("dd/M/yyyy HH:mm:ss", CultureInfo.InvariantCulture);

which returns 21/1/2016 14:48:21 as a string.

Also if you want 1/21/2016 as a string, just change your format to M/dd/yyyy like;

string formattedDate = dt.ToString("M/dd/yyyy", CultureInfo.InvariantCulture);