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c# - How to get date from day of year

How can I get date from day of year in C#?

I have this code :

int a = 53;   // This is the day of year value, that I got previously
string b = Convert.ToDateTime(a).ToString();   // Trying to get the date

I need to get the value 22.2.2014. But this doesn't work, what should I do? Thanks in advance.

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int dayOfYear = 53;
int year = DateTime.Now.Year; //Or any year you want
DateTime theDate = new DateTime(year, 1, 1).AddDays(dayOfYear - 1);
string b = theDate.ToString("d.M.yyyy");   // The date in requested format

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