DateTimeOffset.EqualsExact(DateTimeOffset) DateTimeOffset.EqualsExact(DateTimeOffset) DateTimeOffset.EqualsExact(DateTimeOffset) DateTimeOffset.EqualsExact(DateTimeOffset) Method

Definition

Determines whether the current DateTimeOffset object represents the same time and has the same offset as a specified DateTimeOffset object.

public:
 bool EqualsExact(DateTimeOffset other);
public bool EqualsExact (DateTimeOffset other);
member this.EqualsExact : DateTimeOffset -> bool
Public Function EqualsExact (other As DateTimeOffset) As Boolean

Parameters

other
DateTimeOffset DateTimeOffset DateTimeOffset DateTimeOffset

The object to compare to the current DateTimeOffset object.

Returns

true if the current DateTimeOffset object and other have the same date and time value and the same Offset value; otherwise, false.

Examples

The following example illustrates the use of the EqualsExact method to compare similar DateTimeOffset objects.

DateTimeOffset instanceTime = new DateTimeOffset(2007, 10, 31, 0, 0, 0, 
                              DateTimeOffset.Now.Offset);

DateTimeOffset otherTime = instanceTime;
Console.WriteLine("{0} = {1}: {2}", 
                  instanceTime, otherTime, 
                  instanceTime.EqualsExact(otherTime));
                  
otherTime = new DateTimeOffset(instanceTime.DateTime, 
            TimeSpan.FromHours(instanceTime.Offset.Hours + 1));
Console.WriteLine("{0} = {1}: {2}", 
                  instanceTime, otherTime, 
                  instanceTime.EqualsExact(otherTime));
                  
otherTime = new DateTimeOffset(instanceTime.DateTime + TimeSpan.FromHours(1), 
                TimeSpan.FromHours(instanceTime.Offset.Hours + 1));
Console.WriteLine("{0} = {1}: {2}", 
                  instanceTime, otherTime,
                  instanceTime.EqualsExact(otherTime));
// The example produces the following output:
//       10/31/2007 12:00:00 AM -07:00 = 10/31/2007 12:00:00 AM -07:00: True
//       10/31/2007 12:00:00 AM -07:00 = 10/31/2007 12:00:00 AM -06:00: False
//       10/31/2007 12:00:00 AM -07:00 = 10/31/2007 1:00:00 AM -06:00: False       
Dim instanceTime As New DateTimeOffset(#10/31/2007 12:00AM#, _
                                       DateTimeOffset.Now.Offset)

Dim otherTime As DateTimeOffset = instanceTime
Console.WriteLine("{0} = {1}: {2}", _
                  instanceTime, otherTime, _
                  instanceTime.EqualsExact(otherTime))
                  
otherTime = New DateTimeOffset(instanceTime.DateTime, _
                               TimeSpan.FromHours(instanceTime.Offset.Hours + 1))
Console.WriteLine("{0} = {1}: {2}", _
                  instanceTime, otherTime, _
                  instanceTime.EqualsExact(otherTime))
                  
otherTime = New DateTimeOffset(instanceTime.DateTime + TimeSpan.FromHours(1), _
                                TimeSpan.FromHours(instanceTime.Offset.Hours + 1))
Console.WriteLine("{0} = {1}: {2}", _
                  instanceTime, otherTime, _
                  instanceTime.EqualsExact(otherTime))
' The example produces the following output:
'       10/31/2007 12:00:00 AM -07:00 = 10/31/2007 12:00:00 AM -07:00: True
'       10/31/2007 12:00:00 AM -07:00 = 10/31/2007 12:00:00 AM -06:00: False
'       10/31/2007 12:00:00 AM -07:00 = 10/31/2007 1:00:00 AM -06:00: False       

Remarks

Because multiple time zones share a single offset, a return value of true does not guarantee that the current and the other object represent times in the same time zone.

Unlike the EqualsExact method, the overloads of the Equals method determine only whether two DateTimeOffset values represent a single point in time. They do not indicate that two values have the same date and time as well as the same offset.

Applies to

See also