ASPxDashboard.CustomExport Event

Allows you to customize the exported document.

Namespace: DevExpress.DashboardWeb

Assembly: DevExpress.Dashboard.v20.2.Web.WebForms.dll

Declaration

public event CustomExportWebEventHandler CustomExport
Public Event CustomExport As CustomExportWebEventHandler

Event Data

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

Property Description
DashboardId Gets the identifier of the exported dashboard. Inherited from CustomExportBaseWebEventArgs.
ExportAction Gets the export action performed by an end-user. Inherited from CustomExportBaseWebEventArgs.
ExportMode Gets the document export mode. Inherited from CustomExportBaseWebEventArgs.
ImageExportOptions Gets export options related to exporting a dashboard/dashboard item to an image. Inherited from CustomExportBaseWebEventArgs.
ImageOptions Obsolete. Gets export options related to exporting a dashboard/dashboard item to an image. Inherited from CustomExportBaseWebEventArgs.
ItemComponentName Gets the component name of the exported dashboard item. Inherited from CustomExportBaseWebEventArgs.
PdfExportOptions Gets export options related to exporting a dashboard/dashboard item to PDF format. Inherited from CustomExportBaseWebEventArgs.
PdfOptions Obsolete. Gets export options related to exporting a dashboard/dashboard item to PDF format. Inherited from CustomExportBaseWebEventArgs.
PrintableComponents Obsolete. Provides access to a dictionary containing dashboard item names and related PrintableComponents. For internal use.
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.
GetDashboardItem(String) Returns a dashboard item that corresponds the specified component name.
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 Control raises the CustomExport event before saving the exported document to the PDF and Image formats. The event allows you to customize the exported document.

TIP

You can also use the CustomExportWebEventArgs.Report parameter to customize the underlying report.

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

Example

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

using DevExpress.DashboardCommon;
using DevExpress.DashboardWeb;
using DevExpress.XtraCharts;
using DevExpress.XtraReports.UI;
using System;
using System.Drawing;
using System.Linq;

protected void CustomizeExport(object sender, CustomExportWebEventArgs e) {
  foreach(var printControl in e.GetPrintableControls()) {
    if(printControl.Value is XRGaugeDashboardItem) {
      var gaugeItemName = printControl.Key;
      var gaugeDashboardItem = e.GetDashboardItem(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;
      var chartDashboardItem = e.GetDashboardItem(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;
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}
See Also