CompareTo Method

DateTimeOffset.CompareTo Method

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         
   }
}


Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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