Class NotT

Not<T> class

Applies logical NOT to the specified condition.

public class Not<T> : ICondition<T>
ParameterDescription
TThe type of object to apply method interface to.

Constructors

NameDescription
Not(ICondition<T>)Initializes a new instance of the Not class.

Methods

NameDescription
Check(T)Returns true if the specified object satisfy the condition.

Examples

Shows how to use <see cref=“Aspose.Tasks.Util.Not`1” /> condition.

public void WorkWithNot()
{
    var project = new Project(DataDir + "Project2.mpp");

    // gather all project tasks
    var coll = new ChildTasksCollector();
    TaskUtils.Apply(project.RootTask, coll, 0);

    // create a filter condition
    var filter = new NullCondition();

    // and reverse it by applying <see cref="Aspose.Tasks.Util.Not`1" /> condition
    var condition = new Not<Task>(filter);

    // apply the condition to the collected tasks
    List<Task> collection = Filter(coll.Tasks, condition);
    foreach (var task in collection)
    {
        Console.WriteLine("Name: " + task.Get(Tsk.Name));

        // work with other properties...
    }

    // ...
}

private static List<T> Filter<T>(IEnumerable<T> array, ICondition<T> cond)
{
    var result = new List<T>();

    foreach (var item in array)
    {
        if (cond.Check(item))
        {
            result.Add(item);
        }
    }

    return result;
}

private class NullCondition : ICondition<Task>
{
    public bool Check(Task el)
    {
        return el.Get(Tsk.IsNull).Value;
    }
}

See Also

Class ListUtils Class RemoveTask