TimeSpan.UnaryNegation Operator
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Returns a TimeSpan whose value is the negated value of the specified instance.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- t
- Type: System.TimeSpan
The time interval to be negated.
Return Value
Type: System.TimeSpanAn object that has the same numeric value as this instance, but the opposite sign.
| Exception | Condition |
|---|---|
| OverflowException | The negated value of this instance cannot be represented by a TimeSpan; that is, the value of this instance is MinValue. |
The following code example applies the Unary Negation operator to several TimeSpan objects.
// Example of the TimeSpan.Duration( ) and TimeSpan.Negate( ) methods, // and the TimeSpan Unary Negation and Unary Plus operators. using System; class Example { const string dataFmt = "{0,22}{1,22}{2,22}"; static void ShowDurationNegate(System.Windows.Controls.TextBlock outputBlock, TimeSpan interval) { // Display the TimeSpan value and the results of the // Duration and Negate methods. outputBlock.Text += String.Format(dataFmt, interval, interval.Duration(), interval.Negate()) + "\n"; } public static void Demo(System.Windows.Controls.TextBlock outputBlock) { outputBlock.Text += String.Format( "This example of TimeSpan.Duration( ), " + "TimeSpan.Negate( ), \nand the TimeSpan Unary " + "Negation and Unary Plus operators \n" + "generates the following output.\n") + "\n"; outputBlock.Text += String.Format(dataFmt, "TimeSpan", "Duration( )", "Negate( )") + "\n"; outputBlock.Text += String.Format(dataFmt, "--------", "-----------", "---------") + "\n"; // Create TimeSpan objects and apply the Unary Negation // and Unary Plus operators to them. ShowDurationNegate(outputBlock, new TimeSpan(1)); ShowDurationNegate(outputBlock, new TimeSpan(-1234567)); ShowDurationNegate(outputBlock, new TimeSpan(0, 0, 10, -20, -30)); ShowDurationNegate(outputBlock, new TimeSpan(0, -10, 20, -30, 40)); ShowDurationNegate(outputBlock, new TimeSpan(1, 10, 20, 40, 160)); ShowDurationNegate(outputBlock, new TimeSpan(-10, -20, -30, -40, -50)); } } /* This example of TimeSpan.Duration( ), TimeSpan.Negate( ), and the TimeSpan Unary Negation and Unary Plus operators generates the following output. TimeSpan Duration( ) Negate( ) -------- ----------- --------- 00:00:00.0000001 00:00:00.0000001 -00:00:00.0000001 -00:00:00.1234567 00:00:00.1234567 00:00:00.1234567 00:09:39.9700000 00:09:39.9700000 -00:09:39.9700000 -09:40:29.9600000 09:40:29.9600000 09:40:29.9600000 -1.10:20:40.1600000 1.10:20:40.1600000 1.10:20:40.1600000 10.20:30:40.0500000 10.20:30:40.0500000 -10.20:30:40.0500000 */
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