CompareTo Method

DateTimeOffset.CompareTo Method

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Compares the current DateTimeOffset object to a specified DateTimeOffset object and indicates whether the current object is earlier than, the same as, or later than the second DateTimeOffset object.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

public int CompareTo(
	DateTimeOffset other
)

Parameters

other
Type: System.DateTimeOffset
An object to compare with the current DateTimeOffset object.

Return Value

Type: System.Int32
A signed integer that indicates the relationship between the current DateTimeOffset object and other, as the following table shows.

Return value

Description

Less than zero

The current DateTimeOffset object is earlier than other.

Zero

The current DateTimeOffset object is the same as other.

Greater than zero.

The current DateTimeOffset object is later than other.

Implements

IComparable<T>.CompareTo(T)

This method compares DateTimeOffset objects by comparing their UtcDateTime values; that is, it determines whether the two objects represent a single point in time, and indicates whether the current object is earlier than, later than, or the same as the other parameter.

The following example illustrates calls to the CompareTo method to compare DateTimeOffset objects.


using System;

public class Example
{
   private enum TimeComparison
   {
      Earlier = -1,
      Same = 0,
      Later = 1
   };

   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      DateTimeOffset firstTime = new DateTimeOffset(2007, 9, 1, 6, 45, 0,
                                 new TimeSpan(-7, 0, 0));

      DateTimeOffset secondTime = firstTime;
      outputBlock.Text += String.Format("Comparing {0} and {1}: {2}",
                        firstTime, secondTime,
                        (TimeComparison)firstTime.CompareTo(secondTime)) + "\n";

      secondTime = new DateTimeOffset(2007, 9, 1, 6, 45, 0,
                       new TimeSpan(-6, 0, 0));
      outputBlock.Text += String.Format("Comparing {0} and {1}: {2}",
                       firstTime, secondTime,
                       (TimeComparison)firstTime.CompareTo(secondTime)) + "\n";

      secondTime = new DateTimeOffset(2007, 9, 1, 8, 45, 0,
                       new TimeSpan(-5, 0, 0));
      outputBlock.Text += String.Format("Comparing {0} and {1}: {2}",
                       firstTime, secondTime,
                       (TimeComparison)firstTime.CompareTo(secondTime)) + "\n";
      // The example displays the following output:
      //       Comparing 9/1/2007 6:45:00 AM -07:00 and 9/1/2007 6:45:00 AM -07:00: Same
      //       Comparing 9/1/2007 6:45:00 AM -07:00 and 9/1/2007 6:45:00 AM -06:00: Later
      //       Comparing 9/1/2007 6:45:00 AM -07:00 and 9/1/2007 8:45:00 AM -05:00: Same         
   }
}


Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

Show:
© 2017 Microsoft