Sort Tasks by Column in Gantt Chart

Aspose.Tasks for Java provides the ability to sort tasks by any column in the Gantt chart view. This is accomplished with the help of the comparer method saveOptions.setTasksComparer before rendering in Gantt chart. The default comparer sorts tasks by task ID if no other option is specified.

Sort Tasks

Project project = new Project();
project.addTask("B Task 1");
project.addTask("A Task 2");
SaveOptions options = new PdfSaveOptions();
BarStyle barStyle = new BarStyle();
barStyle.setBarTextConverter(new BarStyle.TaskToBarTextConverter() {
    //@Override
    public String invoke(Task task) { return task.getName(); }
} );
barStyle.setBarColor(java.awt.Color.BLUE);
List<BarStyle> styles = new LinkedList<BarStyle>();
styles.add(barStyle);
options.setBarStyles(styles);
options.setTasksComparer(new TaskNameComparator());
project.save("output.pdf", options);

// ...

private static class TaskNameComparator implements Comparator<Task>
{
    //@Override
    public int compare(Task o1, Task o2) {
        return o1.getName().compareTo(o2.getName());
    }
}