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DashboardViewer.DashboardItemElementCustomColor Event

Allows you to color the required dashboard item elements using the specified colors.

Namespace: DevExpress.DashboardWin

Assembly: DevExpress.Dashboard.v24.1.Win.dll

NuGet Package: DevExpress.Win.Dashboard

Declaration

public event DashboardItemElementCustomColorEventHandler DashboardItemElementCustomColor

Event Data

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

Property Description
Color Gets or sets the color of the dashboard item element.
DashboardItemName Gets the component name of the dashboard item for which the event was raised.
Data Gets multidimensional data displayed in the dashboard item.
Measures Gets measures corresponding to the current dashboard item element.
TargetElement Gets the axis point tuple corresponding to the current dashboard item element.

Remarks

The DashboardItemElementCustomColor event allows you to color the required dashboard item elements (for instance, chart series points, pie segments or scatter chart points) using the specified colors. The DashboardItemElementCustomColorEventArgs class exposes the following settings that allow you to color the required element.

Note

By default, the Chart dashboard item colors lines (or fills areas) for the Line/Area series types using the color of the first series point. For these lines/areas, the DashboardItemElementCustomColorEventArgs.TargetElement property returns a tuple that does not contain the AxisPoint on the DashboardDataAxisNames.ChartArgumentAxis.

Important

Note that color modifications applied using the DashboardItemElementCustomColor event are not applied in the resulting exported document.

Example

The following code snippets show how to color dashboard item elements using the DashboardViewer.DashboardItemElementCustomColor event.

In this example, chart series points, whose values exceed specified thresholds, are colored in green. Chart series points, whose values fall below specified thresholds, are colored in red.

Pie segments, whose contributions in total fall below the specified threshold, are colored in orange.

using System.Drawing;
using DevExpress.XtraEditors;
using DevExpress.DashboardWin;
using DevExpress.DashboardCommon;
using DevExpress.DashboardCommon.ViewerData;

namespace Dashboard_ElementCustomColor {
    public partial class Form1 : XtraForm {
        public Form1() {
            InitializeComponent();
            dashboardViewer1.LoadDashboard(@"..\..\Data\Dashboard.xml");
        }

        private void dashboardViewer1_DashboardItemElementCustomColor(object sender,             
            DashboardItemElementCustomColorEventArgs e) {

            MultiDimensionalData data = e.Data;
            AxisPointTuple currentElement = e.TargetElement;

            if (e.DashboardItemName == "chartDashboardItem1") {
                string country = 
                    currentElement.GetAxisPoint(DashboardDataAxisNames.ChartSeriesAxis).Value.ToString();
                decimal value = (decimal)(data.GetSlice(currentElement)).GetValue(e.Measures[0]).Value;
                if (country == "UK" && value > 50000 || country == "USA" && value > 100000)
                    e.Color = Color.DarkGreen;
                else 
                    e.Color = Color.DarkRed;
            }
            if (e.DashboardItemName == "pieDashboardItem1") {
                decimal value = 
                    (decimal)(data.GetSlice(currentElement)).GetValue(data.GetMeasures()[0]).Value;
                if (value < 100000)
                    e.Color = Color.Orange;
            }
        }
    }
}
See Also