Print Next Date C

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The chapter covers the following topics:. How to create a DateTime. Understand DateTime properties. How to add and subtract date and time using DateTime.

Find days in a month and year. How to compare two dates, times or DateTime.

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How to format dates and timesCreating DateTimeThere are several ways to create a DateTime object. A DateTime object can have a Date, Time, Localization, culture, milliseconds, and kind.The code in Listing 1 uses various constructors of DateTime structure to create DateTime objects. // Add Years and Days. aDay.AddYears(2);.

aDay.AddDays(12);. // Add Hours, Minutes, Seconds, Milliseconds, and Ticks. aDay.AddHours(4.25);. aDay.AddMinutes(15);. aDay.AddSeconds(45);. aDay.AddMilliseconds(200);. aDay.AddTicks(5000);Listing 4The DateTime structure does not have similar Subtract methods.

Print Next Date C

Only Subtract method is used to subtract the DateTime components. For example, if we need to subtract 12 days from a DateTime, we can create another DateTime object or a TimeSpan object with 12 days and subtract it from the DateTime.

Alternatively, we can use a minus operator to subtract a DateTime or TimeSpan from a DateTime.The code snippet in Listing 5 creates a DateTime object and subtracts another DateTime and a TimeSpan object. Code also shows how to subtract just days or hours or other components from a DateTime. DateTime firstDate = new DateTime(2002, 10, 22);. DateTime secondDate = new DateTime(2009, 8, 11);. int result = DateTime.Compare(firstDate, secondDate);.

if (result. DateTime firstDate = new DateTime(2002, 10, 22);. DateTime secondDate = new DateTime(2009, 8, 11);. int compareResult = firstDate.CompareTo(secondDate);. if (compareResult. DateTime dob = new DateTime(2002, 10, 22);.

string  dateFormats = dob.GetDateTimeFormats;. foreach ( string format in dateFormats). Console.WriteLine(format)Listing 10The code snippet in Listing 10 generates output as in Figure 2.Figure 2The GetDateTimeFormats method also has an overload that takes a format specifier as a parameter and converts a DateTime to that format. It is very important to understand the DateTime format specifiers to get the desired formats.

Table 1 summarizes the formats and their codes.CodePatternFormatSample'd'Sort date'D'Long date'f'Full date time. F'Full date time. G'Generate date time. G'General date time.

M', 'm'Month/day.' O', 'o'Round-trip date/time.' R', 'r'RFC1123's'Sortable date time.'

T'Sort time.' T'Long time.' U'Universal sortable date time.' U'Universal full date time.'

Y', 'y'Year month.Table 1The code snippet in Listing 11 uses some of the DateTime format specifiers. string dt = '2010-10-04T20:12:45-5:00';. DateTime newDt = DateTime.Parse(dt);. Console.WriteLine(newDt.ToString);Listing 15 Converting DateTimeThe DateTime structure is full of self-explanatory conversion methods that convert a DateTime to a specified type. These methods are ToBinary, ToFileTime, ToLocalTime, ToLongDateString, ToLongTimeString, ToOADate, ToShortDateString, ToShortTimeString, ToString, and ToUniversalTime.The code snippet in Listing 16 uses some of these methods to convert a DateTime to specified types.

Purchase and download the full PDF and ePub versions of this Visual C# eBook for only $9.99It is a rare application that can be developed without in some way needing to work with dates and times. In recognition of this fact, the Microsoft engineers responsible for C# gave us the DateTime object.

In this chapter we will look in detail at using this object to work with dates and times in C# based applications. Topics covered include adding and subtracting time, getting the system date and time and formatting and extracting elements of dates and times in C#. Formatting Dates and Times in C#There are number of techniques available for extracting and displaying dates and times in particular formats.