Duration.Subtract
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]Subtract(Duration)
Subtracts specified duration from this duration instance.
public Duration Subtract(Duration d)
| Parameter | Type | Description |
|---|---|---|
| d | Duration | the specified Duration instance to subtract from this instance. |
Return Value
New duration object that represents the value of this instance minus the specified duration value.
Examples
Shows how to change a duration of tasks.
var project = new Project(DataDir + "TaskDurations.mpp");
// get a task
var task1 = project.RootTask.Children.GetById(1);
// update the task duration
var duration1 = task1.Get(Tsk.Duration);
// subtract one day to the task 1
duration1 = duration1.Subtract(project.GetDuration(1, TimeUnitType.Day));
// set a new duration to the task
task1.Set(Tsk.Duration, duration1);
Console.WriteLine("The duration of task 1: " + task1.Get(Tsk.Duration));
// get another task
var task2 = project.RootTask.Children.GetById(2);
var duration2 = task2.Get(Tsk.Duration);
// change the duration by using actual time unit type
Console.WriteLine("The time unit of duration: " + duration2.TimeUnit);
duration2 = duration2.Subtract(1d /* the time unit type of duration2 will be used */);
// set a new duration to the task
task2.Set(Tsk.Duration, duration2);
Console.WriteLine("The duration of task 2: " + task2.Get(Tsk.Duration));
See Also
- struct Duration
- namespace Aspose.Tasks
- assembly Aspose.Tasks
Subtract(double)
Subtracts specified double value from this duration instance.
public Duration Subtract(double val)
| Parameter | Type | Description |
|---|---|---|
| val | Double | specified Double value to subtract from this instance. |
Return Value
New duration object that represents the value of this instance minus the specified duration value.
Examples
Shows how to change a duration of tasks.
var project = new Project(DataDir + "TaskDurations.mpp");
// get a task
var task1 = project.RootTask.Children.GetById(1);
// update the task duration
var duration1 = task1.Get(Tsk.Duration);
// subtract one day to the task 1
duration1 = duration1.Subtract(project.GetDuration(1, TimeUnitType.Day));
// set a new duration to the task
task1.Set(Tsk.Duration, duration1);
Console.WriteLine("The duration of task 1: " + task1.Get(Tsk.Duration));
// get another task
var task2 = project.RootTask.Children.GetById(2);
var duration2 = task2.Get(Tsk.Duration);
// change the duration by using actual time unit type
Console.WriteLine("The time unit of duration: " + duration2.TimeUnit);
duration2 = duration2.Subtract(1d /* the time unit type of duration2 will be used */);
// set a new duration to the task
task2.Set(Tsk.Duration, duration2);
Console.WriteLine("The duration of task 2: " + task2.Get(Tsk.Duration));
See Also
- struct Duration
- namespace Aspose.Tasks
- assembly Aspose.Tasks
