DashboardViewer.CustomExport Event

Allows you to customize the exported document.

Namespace: DevExpress.DashboardWin

Assembly: DevExpress.Dashboard.v20.2.Win.dll

Declaration

public event CustomExportEventHandler CustomExport

Event Data

The CustomExport event's data class is CustomExportEventArgs. The following properties provide information specific to this event:

Property Description
ExportAction Gets the export action performed by an end-user. Inherited from CustomExportBaseEventArgs.
ExportMode Gets the document export mode. Inherited from CustomExportBaseEventArgs.
ImageExportOptions Gets export options related to exporting a dashboard/dashboard item to an image. Inherited from CustomExportBaseEventArgs.
ImageOptions Obsolete. Gets export options related to exporting a dashboard/dashboard item to an image. Inherited from CustomExportBaseEventArgs.
ItemComponentName Gets the component name of the exported dashboard item. Inherited from CustomExportBaseEventArgs.
PdfExportOptions Gets export options related to exporting a dashboard/dashboard item to PDF format. Inherited from CustomExportBaseEventArgs.
PdfOptions Obsolete. Gets export options related to exporting a dashboard/dashboard item to PDF format. Inherited from CustomExportBaseEventArgs.
PrintableComponents Obsolete. Provides access to a dictionary containing dashboard item names and related PrintableComponents. For internal use.
PrintPreviewOptions Gets options related to printing a dashboard/dashboard item using the Print Preview window. Inherited from CustomExportBaseEventArgs.
Report Gets the underlying report of the exported document.

The event data class exposes the following methods:

Method Description
GetChartContext(String) Returns chart context for the specified Chart dashboard item.
GetGaugeContext(String) Returns gauge export context for the specified Gauge dashboard item.
GetItemData(String) Returns multidimensional data for the specified dashboard item.
GetPrintableControl(String) Gets a printable control corresponding to the specified dashboard item.
GetPrintableControls() Gets printable controls corresponding to the exported dashboard items.

Remarks

The Dashboard Viewer raises the CustomExport event before saving the exported document to the PDF and Image formats. The event allows you to customize the exported document.

The following table illustrates dashboard items and their corresponding printable XRControls:

Dashboard Item XRControl
ChartDashboardItem XRChart
ScatterChartDashboardItem XRChart
PieDashboardItem XRChart
RangeFilterDashboardItem (When CustomExportBaseEventArgs.ExportMode is SingleItem) XRChart
GaugeDashboardItem XRGaugeDashboardItem

Examples

The following example shows how to customize dashboard items in the exported document when you handle the DashboardDesigner.CustomExport / DashboardViewer.CustomExport / DashboardControl.CustomExport events. You can use the CustomExportEventArgs.GetPrintableControls method to obtain the printable controls.

using DevExpress.DashboardCommon;
using DevExpress.DashboardExport;
using DevExpress.DashboardWin;
using DevExpress.XtraCharts;
using DevExpress.XtraGauges.Core.Drawing;
using DevExpress.XtraGauges.Win.Base;
using DevExpress.XtraGauges.Win.Gauges.Circular;
using DevExpress.XtraReports.UI;

private void DashboardControl_CustomExport(object sender, CustomExportEventArgs e) {
    foreach(var printControl in e.GetPrintableControls()) {
        if(printControl.Value is XRGaugeDashboardItem) {
            var gaugeItemName = printControl.Key;
            DashboardViewer viewer = (DashboardViewer)sender;
            var gaugeDashboardItem = viewer.Dashboard.Items[gaugeItemName] as GaugeDashboardItem;
            foreach(var dashGaugeElement in gaugeDashboardItem.Gauges) {
                foreach(var gaugePanel in e.GetGaugeContext(gaugeItemName).GetPrintableGauges(dashGaugeElement).Cast<XRDashboardGauge>()) {
                    if(gaugePanel != null) {
                        gaugePanel.MainSeriesLabel.ForeColor = Color.Red;
                    }
                }
            }
        }

        if(printControl.Value is XRChart) {
            var chartItemName = printControl.Key;
            DashboardViewer viewer = (DashboardViewer)sender;
            var chartDashboardItem = viewer.Dashboard.Items[chartItemName] 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.GetChartContext(chartItemName).GetControlSeries(dashSeries);
                            if(controlSeries != null) {
                                foreach(var ser in controlSeries) {
                                    LineSeriesView view = ser.View as LineSeriesView;
                                    if(view != null) {
                                        view.LineStyle.DashStyle = DashStyle.DashDot;
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}

Implements

See Also