date convertion - doubt

public DateTime ConvToDate(string dateString)
    {

        DateTime result;

        string[] a = new string[] { "dd/MM/yyyy", "MM/dd/yyyy", "MM/dd/yy", "ddMMMyyyy", "dMMMyyyy","dd-MM-yyyy","MM-dd-yy","MMM dd" };
        result = DateTime.ParseExact(dateString, a, System.Globalization.CultureInfo.CurrentCulture, System.Globalization.DateTimeStyles.None);
        
        return result;
    }