Chart Selection and Explode

[Chris Thierry]

Hi, I have two question related to charts

1. In the demo first look when I click in a barline chart the item is select with a border, can I do the same with a single barline char? because it doesn't work, I'm using this:

SeriesMapping seriesMapping = new SeriesMapping();

 

seriesMapping.SeriesDefinition =

 

new BarSeriesDefinition();

 

seriesMapping.SeriesDefinition.InteractivitySettings.HoverScope =

 

 

 

InteractivityScope.Item;

 

seriesMapping.SeriesDefinition.InteractivitySettings.SelectionScope =

 

 

 

InteractivityScope.Item;

 

seriesMapping.SeriesDefinition.InteractivitySettings.SelectionMode =

 

 

 

ChartSelectionMode.Single;

 

seriesMapping.SeriesDefinition.ShowItemToolTips =

 

true;

 

seriesMapping.SeriesDefinition.ItemToolTipFormat =

 

 

 

"#VAL{#,###,###,##0$}"; //"#Y$";

 

 

 

seriesMapping.SeriesDefinition.Appearance.Fill =

 

new SolidColorBrush(Color.FromArgb(200, 248, 152, 29));

 

seriesMapping.SeriesDefinition.ItemLabelFormat =

 

 

 

"#VAL{#,###,###,##0$}"; //"#Y$";

 

ItemMapping

 

 

yMapping = new ItemMapping("quantity", DataPointMember.YValue);

 

 

 

 

 

ItemMapping catMapping = new ItemMapping("period", DataPointMember.XCategory);

 

seriesMapping.ItemMappings.Add(yMapping);

seriesMapping.ItemMappings.Add(catMapping);

chart_Months.DefaultView.ChartArea.ZoomScrollSettingsX.ScrollMode =

 

ScrollMode.ScrollAndZoom;

 

chart_Months.DefaultView.ChartArea.ZoomScrollSettingsX.MinZoomRange = _minZoomRange;

 

 

chart_Months.DefaultView.ChartArea.ZoomScrollSettingsX.PropertyChanged += ZoomScrollSettingsX_PropertyChanged;

chart_Months.SeriesMappings.Clear();

chart_Months.SeriesMappings.Add(seriesMapping);

chart_Months.ItemsSource = e.Result.ToList();

2. Can I make a pie chart with an item already exploded without doing click?

Thank you.

For my first question I realized when I'm using ZoomScrollSettingsX the selected item border is not working. Is there any way to identify the selectd item?

 

 

 

 

 

 

 

 

 

 

 

 

 

[Giuseppe]

Hi Chris,

Indeed we must admit that the selection interactivity did not work properly in the official Q2 2010 release and no selection border was visible. Our developers have addressed the erroneous behavior for the service pack that was released last week and we would suggest you to download the new version from your Client.Net account.

Note, however, that selection persistence is not supported over zoom / scroll actions at the moment i.e. if you select an item and then scroll the chart a bit, the selection will be lost.

As for your other question -- currently this is not supported but we are planning to extend the Interactivity API and possibly add some events for the next Q3 2010 release of the control.


Regards,
Freddie
the Telerik team