public void ClearGantt()
{
ganttChartData.RowGroups.Clear();
ganttChartData.TimeLines.Clear();
GridLineTimeLine.Clear();
SelectedItems.Clear();
// This is to fix the resizing issue when the background timelines don't resize to fit the scrollviewer.
Dispatcher.Invoke(DispatcherPriority.Render, EmptyDelegate);
}
public void SetGridLinesTimeline(TimeLine timeline, BackgroundFormatter backgroundFormatter)
{
if (!ganttChartData.TimeLines.Contains(timeline))
{
throw new Exception("Invalid timeline");
}
foreach (var item in timeline.Items)
{
item.BackgroundColor = backgroundFormatter(item);
}
GridLineTimeLine.Clear();
GridLineTimeLine.Add(timeline);
}