Validate Date format - comes with error

[Lyuba Boerma]

Hi everybody)
i have a question.
i need to validate , that date and time in a application is in correct format .

i have this code for this

Code: Select all

dateFormatString = "dd-MM-yyyy HH:mm";
            	
            	try
            	{
            		System.DateTime dt = System.DateTime.ParseExact(dateString, dateFormatString, System.Globalization.CultureInfo.InvariantCulture);
            		Report.Log(ReportLevel.Info, "Validated date is  correct   " + dateString + "\r\nValidated date format: " + dateFormatString);
            	}
            	catch
            	{
            		Report.Log(ReportLevel.Warn, "Validated date in incorrect format. \r\nValidated date: " + dateString + "\r\nValidated date format: " + dateFormatString);
            	}

i validate time in two places.
i one it passes validation, in second - it gives me an error... And i don't understand why..
Same string validated to same value gives me different results...
Maybe you can help me to understand why? i even check a number of "spaces"..
what can be an issue?

this comes correct
Validated date is correct 17-05-2019 10:19
Validated date format: dd-MM-yyyy HH:mm

this comes with error
Validated date in incorrect format.
Validated date: 17-05-2019 10:19
Validated date format: dd-MM-yyyy HH:mm

report.png (38.93 KiB) Viewed 80 times

[odklizec]

Hi,

There appears to be an empty space behind the date string?...

datetime.png (90.82 KiB) Viewed 78 times

[Lyuba Boerma]

Thanks! maybe it is an reason

Is it possible to parse this value without extra spaces???
or maybe to make a limit for date string to 16 symbols?)
Thanks ))

[odklizec]

Hi,
Trim() should do the trick...

Code: Select all

dateString = dateString.Trim();

[Lyuba Boerma]

Thank you
It really helps!