Combining TimelineContainerSelector

[Kourosh]

Hi Progress,

 

I was wondering if it is possible to combine BaseLine_WPF project and ProjectDeadline_WPF project inside your xaml-sdk-master samples/Examples?

If I have understood this correctly, TimelineContainerSelector in Xaml can only have one child. How can I give several behaviors to TimelineContainerSelector?

 

Thanx

Best Regards

kourosh

[Martin Ivanov]

Hello Kourosh,

You can have only a single timeline container selector, but you can return different container types based on a condition. For example:

public class TimeLineCustomContainerSelector : DefaultTimeLineContainerSelector
{
    protected static readonly ContainerTypeIdentifier BaselineContainerType = ContainerTypeIdentifier.FromType<BaselineContainer>();
    private static readonly ContainerTypeIdentifier DeadlineEventInfoContainerType = ContainerTypeIdentifier.FromType<TimeLineDeadlineContainer>();

    public override ContainerTypeIdentifier GetContainerType(object item)
    {
        if (item is BaselineEventInfo)
        {
            return BaselineContainerType;
        }
        else if (item is TimeLineDeadlineEventInfo)
        {
            return DeadlineEventInfoContainerType;
        }
        return base.GetContainerType(item);
    }
}

I hope that helps.

Regards,
Martin Ivanov
Progress Telerik

[Kourosh]

Hi Martin,

Thank you for your reply.

It seems to me that there are parts missing!

What about the behavior? How should TimeLineBaselineBehavior look like? I mean the behavior part is also different in projectdeadline and baseline samples:

<telerik:RadGanttView x:Name="GanttView"
                              TasksSource="{Binding Tasks}"
                              SelectedItem="{Binding SelectedTask, Mode=TwoWay}"
                              InitialExpandBehavior="Expanded"
                              Grid.Row="1"
                              VisibleRange="{Binding VisibleRange}"
                              TimeLineVisualizationBehavior="{Binding TimeLineBaselineBehavior}"
                              PixelLength="{Binding PixelLenght, Mode=TwoWay}"
                              >

Could you give me a whole working sample that shows how I can put ProjectDeadline sample  and BaseLine sample in your sample package together? It would help a lot.

Best Regards

Kourosh

[Kourosh]

Hi Martin,

I got it! In case someone else needs it.

I put 2 behaviors together in a new file called TimeLineCustomBehavior like this:

 

public class TimeLineCustomBehavior : DefaultGanttTimeLineVisualizationBehavior
    {
        private DateTime projectDeadline;

        public DateTime ProjectDeadline
        {
            get { return this.projectDeadline; }
            set
            {
                if (this.projectDeadline != value)
                {
                    this.projectDeadline = value;
                    this.OnPropertyChanged(string.Empty);
                }
            }
        }

        protected override IEnumerable GetBackgroundData(TimeLineVisualizationState state)
        {
            foreach (var background in base.GetBackgroundData(state))
            {
                yield return background;
            }

            var visibleRange = state.VisibleTimeRange;
            var deadline = state.Rounder.Round(new DateRange(this.projectDeadline, this.projectDeadline));
            var deadlineRange = new Range<long>(deadline.Start.Ticks, deadline.End.Ticks);

            if (visibleRange.IntersectsWith(deadlineRange))
            {
                yield return new TimeLineDeadlineEventInfo(deadlineRange);
            }
        }

        protected override IEnumerable<IEventInfo> GetEventInfos(TimeLineVisualizationState state, HierarchicalItem hierarchicalItem)
        {
            foreach (var eventInfo in base.GetEventInfos(state, hierarchicalItem))
            {
                yield return eventInfo;
            }

            var task = hierarchicalItem.SourceItem as CustomGanttTask;
            var baselineStartDate = task != null ? task.StartPlannedDate : DateTime.MinValue;

            if (baselineStartDate != null && baselineStartDate != DateTime.MinValue)
            {
                var roundedDeadline = state.Rounder.Round(new DateRange(baselineStartDate, task.EndPlannedDate));
                var baselineRange = new Range<long>(roundedDeadline.Start.Ticks, roundedDeadline.End.Ticks);

                if (baselineRange.IntersectsWith(state.VisibleTimeRange))
                {
                    yield return new BaselineEventInfo(baselineRange, hierarchicalItem.Index, hierarchicalItem.SourceItem as CustomGanttTask);
                }
            }
        }
    }

 

and then in ViewModel initiated it:

private ITimeLineVisualizationBehavior timeLineCustomBehavior;

public ITimeLineVisualizationBehavior TimeLineCustomBehavior
        {
            get
            {
                return timeLineCustomBehavior;
            }
            set
            {
                timeLineCustomBehavior = value;
                OnPropertyChanged(() => this.timeLineCustomBehavior);
            }
        }

inside the constructor:

this.timeLineCustomBehavior = new TimeLineCustomBehavior();

and in Example.xaml:

<telerik:RadGanttView x:Name="GanttView"
                              TasksSource="{Binding Tasks}"
                              SelectedItem="{Binding SelectedTask, Mode=TwoWay}"
                              InitialExpandBehavior="Expanded"
                              Grid.Row="1"
                              VisibleRange="{Binding VisibleRange}"
                              TimeLineVisualizationBehavior="{Binding TimeLineCustomBehavior}"
                              PixelLength="{Binding PixelLenght, Mode=TwoWay}"
        >

 

It works!

Please do comment Martin.

 

Best Regards

Kourosh

[Martin Ivanov]

Hello Kourosh,

I am glad that you found a solution. And thank you for sharing it here.

Regards,
Martin Ivanov
Progress Telerik