Question

I have dates in SQL stored as DateTime,
when showing them in a textbox I do this:

txtDateLogged.Text = v.DateLogged.ToString("dd-MM-yyyy");

But when I the update that textbox to write back to SQL Im getting and invalid DateTime error when using this:

if (DateLogged!= "")
{ 
     uInput.DateLogged = Convert.ToDateTime(DateLogged);
}

Im assuming Im missing something in the formatting – the date value is passed into the public void doing the update as a string, then converted in the line above.
Any suggestions?

thanks

T

Answer 1

You need to convert back in the same format that you converted to text, e.g.

uInput = DateTime.ParseExact(text, "dd-MM-yyyy", CultureInfo.InvariantCulture);

See the docs for DateTime.ParseExact for more details.

Of course, if you could avoid converting to a string representation – or keep the DateTime as well – that would be better.

If you’re parsing user input you should use DateTime.TryParseExact instead, to account for the possibility of invalid data without using exceptions for flow control.