Xtykutl

I'm very new to C# and I think I got something on my mind but can't quite figure it out.

So I got this school project that needs to ask the first name, last name and date of birth of the user but with certain limitations. I can figure the names out but the date problem persists.

The date of birth should be in DD.MM.YYYY. format and have certain limitations:

Date should be between 01-31

Month between 01-12

Year between 1900-2050

I can get it to ask but it won't specify the format and I don't know what variable to use.

To parse dates in custom format, DateTime.TryParse method is best fit.

You just need to find culture, which uses your date format, for example "fr-CH".

Then you use mentioned method to check if format of date was correct. It automatically checks if date is vaild, i.e. month is between 1 and 12, day of month is in correct range (1 through 28,29,30 or 31 depending on month and year).

You just need to additionally check the year.

Try this code (I used short-circuiting operator &&, so if parsing was successfull, then check the year):

DateTime dt;

CultureInfo culture = CultureInfo.CreateSpecificCulture("fr-CH");

DateTimeStyles styles = DateTimeStyles.None;

if(DateTime.TryParse("28.01.2018", culture, styles, out dt)

  && dt.Year >= 1900 && dt.Year <= 2050) // here you check additionally if year is in correct range

    Console.WriteLine("Date successfully parsed!");