DashboardItemControlEventArgs.ChartContext Property
Gets the chart context.
Namespace: DevExpress.DashboardWin
Assembly: DevExpress.Dashboard.v24.1.Win.dll
NuGet Package: DevExpress.Win.Dashboard
Declaration
Property Value
Type | Description |
---|---|
ChartContext | A context used to provide a connection between data item containers from the Values section and underlying control’s series. |
Remarks
A chart context provides the connection between dashboard data item containers from the Values section and the underlying control’s series. The GetControlSeries method returns a data item container that corresponds to the specified control’s series. The GetDashboardItemColumn method, in turn, gets a collection of the control’s series that corresponds to the specified data item containers from the Values section.
The following code shows how to change the standard line to a line consisting of a repeating pattern of dash-dot. The Chart contains two panes with Total Sum and Quantity data items. The series contains two values. The DashboardDesigner.DashboardItemControlUpdated event is used to update the Chart’s appearance.
using DevExpress.DashboardCommon;
using DevExpress.DashboardWin;
using DevExpress.XtraCharts;
// ...
private void DashboardDesigner1_DashboardItemControlUpdated(object sender, DashboardItemControlEventArgs e) {
if(e.ChartControl != null) {
DashboardDesigner designer = (DashboardDesigner)sender;
var chartDashboardItem = designer.Dashboard.Items[e.DashboardItemName] as ChartDashboardItem;
foreach(var pane in chartDashboardItem.Panes) {
if(pane.Series.Count > 0) {
foreach(var dashSeries in pane.Series) {
if(dashSeries != null) {
var controlSeries = e.ChartContext.GetChartSeries(dashSeries);
if(controlSeries != null) {
foreach(var ser in controlSeries) {
LineSeriesView view = ser.View as LineSeriesView;
if(view != null) {
view.LineStyle.DashStyle = DashStyle.DashDot;
}
}
}
}
}
}
}
}
}
Related GitHub Examples
The following code snippet (auto-collected from DevExpress Examples) contains a reference to the ChartContext property.
Note
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