Sync a GanttControl and a FlexyGantt Selection

[d.laumaille]

Hi,

I've got two controls on my form, a GanttControl, and a FlexyGantt.
The GanttControl has an entity collection as a DataSource, and the FlexyGantt has a datasource based on the GanttControl model, using ResourceToActivitiesListConverter class.
The display (width, timeline) are synchronized using a SyncGantt class, found in your sample.


I'd like that when I click on a task in the FlexyGantt, the corresponding task in the GanttControl should be bring into view. That maybe means that some nodes should be expanded in the GanttControl.

I already can detect the click on a task in the FlexyGantt, and retrieve ths entity object binded to it, but I can't figure how to show the same task in the GanttControl.

Could you help me, please ?

[Rajagopal]

d.laumaille,

You can listen for the "PreviewMouseDown" event of TaskItemTemplate in FlexyGantt, and update the ProjectGantt like this,

In XAML:

Code: [Select]

<fxgantt:FlexyGantt.TaskItemTemplate>
    <DataTemplate>
        <Grid MouseEnter="Task_MouseEnter" MouseLeave="Task_MouseLeave" ToolTipService.ToolTip="{Binding  ActivityName}"
                PreviewMouseDown="Grid_PreviewMouseDown">
            <Rectangle x:Name="taskBar" HorizontalAlignment="Stretch"
                Fill="{StaticResource TaskItemBarFill}" Stroke="Blue"
                    StrokeThickness="1" RadiusX="4" RadiusY="4"  />

            <!-- Include a thumb with name "dragThumb" to enable drag-moving the task functionality.-->
            <!-- ZIndex=2 ensures this is drawn above the Rectangle -->
            <Thumb x:Name="dragThumb" Canvas.ZIndex="2" />
            <!-- Include a thumb with name "resizeThumb" to enable resizing the task functionality -->
            <!-- ZIndex=3 ensures this is drawn above the dragThumb -->
            <Thumb x:Name="resizeThumb" Canvas.ZIndex="3" HorizontalAlignment="Right" Cursor="SizeWE"
            Width="3" />
        </Grid>
    </DataTemplate>
</fxgantt:FlexyGantt.TaskItemTemplate>

In C#:

Code: [Select]

private void Grid_PreviewMouseDown(object sender, MouseButtonEventArgs e)
{
    Grid grid = sender as Grid;
    IActivity selectedAct = grid.DataContext as IActivity;

    IActivity parentAct = selectedAct.Parent;
    List<IActivity> parentActs = new List<IActivity>();

    while (parentAct != null)
    {
        parentActs.Add(parentAct);
        parentAct = parentAct.Parent;
    }
           
    for (int i = parentActs.Count - 1; i >= 0; i--)
    {
        IActivityView view = this.ganttControl.ActivityViews[parentActs[i]];
        view.IsExpanded = true;
    }

    IActivityView selectedActView = this.ganttControl.ActivityViews[selectedAct];
    this.ganttControl.GanttTable.ScrollIntoView(selectedActView);
}


Regards,
-Raja.