# DateTimeOffset.Inequality(DateTimeOffset, DateTimeOffset) 演算子

## 定義

``````public:
static bool operator !=(DateTimeOffset left, DateTimeOffset right);``````
``public static bool operator != (DateTimeOffset left, DateTimeOffset right);``
``static member op_Inequality : DateTimeOffset * DateTimeOffset -> bool``
``Public Shared Operator != (left As DateTimeOffset, right As DateTimeOffset) As Boolean``

left
DateTimeOffset

right
DateTimeOffset

#### 戻り値

`left``right`UtcDateTime 値が異なる場合は `true`。それ以外の場合は `false``true` if `left` and `right` do not have the same UtcDateTime value; otherwise, `false`.

## 注釈

Inequality メソッドは、DateTimeOffset オブジェクトの非等値演算子の演算を定義します。The Inequality method defines the operation of the inequality operator for DateTimeOffset objects. Equalityからは、常に逆の結果が返されます。It always returns the opposite result from Equality. Inequality メソッドは、次のようなコードを有効にします。The Inequality method enables code such as the following:

``````DateTimeOffset date1 = new DateTimeOffset(2007, 6, 3, 14, 45, 0,
new TimeSpan(-7, 0, 0));
DateTimeOffset date2 = new DateTimeOffset(2007, 6, 3, 15, 45, 0,
new TimeSpan(-6, 0, 0));
DateTimeOffset date3 = new DateTimeOffset(date1.DateTime,
new TimeSpan(-6, 0, 0));
Console.WriteLine(date1 != date2);        // Displays False
Console.WriteLine(date1 != date3);        // Displays True
``````
``````Dim date1 As New DateTimeOffset(#6/3/2007 2:45PM#, _
New TimeSpan(-7, 0, 0))
Dim date2 As New DateTimeOffset(#6/3/2007 3:45PM#, _
New TimeSpan(-6, 0, 0))
Dim date3 As New DateTimeOffset(date1.DateTime, _
New TimeSpan(-6, 0, 0))
Console.WriteLine(date1 <> date2)        ' Displays False
Console.WriteLine(date1 <> date3)        ' Displays True
``````

`left``right` オペランドが等しいかどうかを評価する前に、演算子は両方の値を世界協定時刻 (UTC) に変換します。Before evaluating the `left` and `right` operands for equality, the operator converts both values to Coordinated Universal Time (UTC). 操作は、次の場合と同じです。The operation is equivalent to the following:

``````return first.UtcDateTime == second.UtcDateTime;
``````
``````Return first.UtcDateTime = second.UtcDateTime
``````

カスタム演算子をサポートしない言語では、代わりに Compare メソッドを呼び出すことができます。Languages that do not support custom operators can call the Compare method instead. また、次の例に示すように、一部の言語では、Inequality メソッドを直接呼び出すこともできます。In addition, some languages can also call the Inequality method directly, as the following example shows.

``````Dim date1 As New DateTimeOffset(#6/3/2007 2:45PM#, _
New TimeSpan(-7, 0, 0))
Dim date2 As New DateTimeOffset(#6/3/2007 3:45PM#, _
New TimeSpan(-7, 0, 0))
Dim date3 As New DateTimeOffset(date1.DateTime, _
New TimeSpan(-6, 0, 0))
Dim date4 As DateTimeOffset = date1
Console.WriteLine( _
DateTimeOffset.op_Inequality(date1, date2))   ' Displays True
Console.WriteLine( _
DateTimeOffset.op_Inequality(date1, date3))   ' Displays True
Console.WriteLine( _
DateTimeOffset.op_Inequality(date1, date4))   ' Displays False
``````

この演算子の同等のメソッドは DateTimeOffset.Compare(DateTimeOffset, DateTimeOffset)The equivalent method for this operator is DateTimeOffset.Compare(DateTimeOffset, DateTimeOffset)