DateTimeOffset.EqualsExact(DateTimeOffset) 方法

定義

命名空間:
System
組件:
mscorlib.dll, System.Runtime.dll
組件:
netstandard.dll, System.Runtime.dll
組件:
System.Runtime.dll
組件:
mscorlib.dll
組件:
netstandard.dll
來源:
DateTimeOffset.cs
來源:
DateTimeOffset.cs
來源:
DateTimeOffset.cs
來源:
DateTimeOffset.cs
來源:
DateTimeOffset.cs

判斷當前 DateTimeOffset 物件是否代表與指定 DateTimeOffset 物件相同的時間及偏移量。

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

參數

other
DateTimeOffset

要和當前 DateTimeOffset 物件比較的物件。

傳回

Boolean

true 若目前 DateTimeOffset 物件與 other 的日期、時間值相同且 Offset 值相同;否則， false。

範例

以下範例說明了使用此 EqualsExact 方法比較相似 DateTimeOffset 物件的做法。

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

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

let otherTime = instanceTime
printfn $"{instanceTime} = {otherTime}: {instanceTime.EqualsExact otherTime}"

let otherTime = DateTimeOffset(instanceTime.DateTime, TimeSpan.FromHours(instanceTime.Offset.Hours + 1 |> float))
printfn $"{instanceTime} = {otherTime}: {instanceTime.EqualsExact otherTime}"

let otherTime = DateTimeOffset(instanceTime.DateTime + TimeSpan.FromHours 1, TimeSpan.FromHours(instanceTime.Offset.Hours + 1 |> float))
printfn $"{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

備註

由於多個時區共用同一個偏移量，回傳值 並不 true 保證當前與 other 物件代表同一時區的時間。

與方法不同 EqualsExact ，該方法的 Equals 過載僅決定兩個 DateTimeOffset 值是否代表同一時間點。 它們並不表示兩個值的日期、時間或偏移量相同。

適用於

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