DateTimeOffset.LessThan Operator
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Determines whether one specified DateTimeOffset object is less than a second specified DateTimeOffset object.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- left
- Type: System.DateTimeOffset
The first object to compare.
- right
- Type: System.DateTimeOffset
The second object to compare.
Return Value
Type: System.Booleantrue if the UtcDateTime value of left is earlier than the UtcDateTime value of right; otherwise, false.
The LessThan method defines the operation of the less than operator for DateTimeOffset objects. It 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(-8, 0, 0)); outputBlock.Text += (date1 < date2) + "\n"; // Displays False outputBlock.Text += (date1 < date3) + "\n"; // Displays True
Before evaluating the left and right operands, the operator converts both operands to Coordinated Universal Time (UTC). The operation is equivalent to the following:
Languages that do not support custom operators can call the Compare method instead. In addition, some languages can also call the LessThan method directly, as the following example shows.
Dim date1 As New DateTimeOffset(#6/3/2007 2:45:00 PM#, _ New TimeSpan(-7, 0, 0)) Dim date2 As New DateTimeOffset(#6/3/2007 3:45:00 PM#, _ New TimeSpan(-6, 0, 0)) Dim date3 As New DateTimeOffset(date1.DateTime, _ New TimeSpan(-8, 0, 0)) outputBlock.Text += DateTimeOffset.op_LessThan(date1, date2).ToString() & vbCrLf ' Displays False outputBlock.Text += DateTimeOffset.op_LessThan(date1, date3).ToString() & vbCrLf ' Displays True