private void BindViewModel()
{
DateTime now = DateTime.Parse(@"2020-10-20 00:00:00");
TimelineTask task1 = new TimelineTask();
task1.StartTime = now.AddHours(1);
task1.EndTime = now.AddHours(6);
TimelineTask task2 = new TimelineTask();
task2.StartTime = now.AddHours(5);
task2.EndTime = now.AddHours(9);
TimelineTask task3 = new TimelineTask();
task3.StartTime = now.AddHours(6);
task3.EndTime = now.AddHours(12);
TimelineViewModel model = new TimelineViewModel();
model.Now = now;
model.Start = now;
model.End = now.AddDays(1);
model.Zoom = 0.1;
model.ZoomPercent = 0.1;
model.Tasks.Add(task1);
model.Tasks.Add(task2);
model.Tasks.Add(task3);
this.DataContext = model;
}