DateTimeOffset.Inequality(DateTimeOffset, DateTimeOffset) Operator
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Determines whether two specified DateTimeOffset objects refer to different points in time.
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
The first object to compare.
- right
- DateTimeOffset
The second object to compare.
true
if left
and right
do not have the same UtcDateTime value; otherwise, false
.
The Inequality method defines the operation of the inequality operator for DateTimeOffset objects. It always returns the opposite result from Equality. 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
let date1 =
DateTimeOffset(2007, 6, 3, 14, 45, 0, TimeSpan(-7, 0, 0))
let date2 =
DateTimeOffset(2007, 6, 3, 15, 45, 0, TimeSpan(-6, 0, 0))
let date3 =
DateTimeOffset(date1.DateTime, TimeSpan(-6, 0, 0))
printfn $"{date1 <> date2}" // Displays False
printfn $"{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
Before evaluating the left
and right
operands for equality, the operator converts both values to Coordinated Universal Time (UTC). The operation is equivalent to the following:
return first.UtcDateTime == second.UtcDateTime;
first.UtcDateTime = second.UtcDateTime
Return first.UtcDateTime = second.UtcDateTime
In other words, the Inequality method determines whether the two DateTimeOffset objects represent different points in time. It directly compares neither dates and times nor offsets.
Languages that do not support custom operators can call the Compare method instead. 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
The equivalent method for this operator is DateTimeOffset.Compare(DateTimeOffset, DateTimeOffset)
Product | Versions |
---|---|
.NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
.NET Standard | 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 2.0, 2.1 |
UWP | 10.0 |
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