AreaSeriesViewBase.Transparency Property

Gets or sets the transparency (0-255) to use for displaying the filled color areas.

Namespace: DevExpress.XtraCharts

Assembly: DevExpress.XtraCharts.v18.2.dll

Declaration

C#

[XtraSerializableProperty]
[XtraChartsLocalizableCategory(XtraChartsCategory.Appearance)]
public byte Transparency { get; set; }

VB.NET

<XtraSerializableProperty>
<XtraChartsLocalizableCategory(XtraChartsCategory.Appearance)>
Public Property Transparency As Byte

Property Value

Type	Description
Byte	A Byte value from 0 (opaque) to 255 (transparent).

Example

The following example demonstrates how to create a ChartControl with two series of the AreaSeriesView type, and add this chart to a form at runtime. Before proceeding with this example, create a Windows Forms Application in Visual Studio, and add all required assemblies to the References list of your project.

Then, add the following code to the Form.Load event handler.

C#

using DevExpress.XtraCharts;
// ...

private void Form1_Load(object sender, EventArgs e) {
    // Create a new chart.
    ChartControl areaChart = new ChartControl();

    // Create two area series.
    Series series1 = new Series("Series 1", ViewType.Area);
    Series series2 = new Series("Series 2", ViewType.Area);

    // Add points to them.
    series1.Points.Add(new SeriesPoint(1, 15));
    series1.Points.Add(new SeriesPoint(2, 18));
    series1.Points.Add(new SeriesPoint(3, 25));
    series1.Points.Add(new SeriesPoint(4, 33));

    series2.Points.Add(new SeriesPoint(1, 10));
    series2.Points.Add(new SeriesPoint(2, 12));
    series2.Points.Add(new SeriesPoint(3, 14));
    series2.Points.Add(new SeriesPoint(4, 17));

    // Add both series to the chart.
    areaChart.Series.AddRange(new Series[] { series1, series2 });

    // Set the numerical argument scale types for the series,
    // as it is qualitative, by default.
    series1.ArgumentScaleType = ScaleType.Numerical;
    series2.ArgumentScaleType = ScaleType.Numerical;

    // Access the view-type-specific options of the series.
    ((AreaSeriesView)series1.View).Transparency = 80;

    // Access the type-specific options of the diagram.
    ((XYDiagram)areaChart.Diagram).EnableAxisXZooming = true;

    // Hide the legend (optional).
    areaChart.Legend.Visible = false;

    // Add the chart to the form.
    areaChart.Dock = DockStyle.Fill;
    this.Controls.Add(areaChart);
}

VB.NET

Imports DevExpress.XtraCharts
' ...

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles MyBase.Load
    ' Create a new chart.
    Dim areaChart As New ChartControl()

    ' Create two area series.
    Dim series1 As New Series("Series 1", ViewType.Area)
    Dim series2 As New Series("Series 2", ViewType.Area)

    ' Add points to them.
    series1.Points.Add(New SeriesPoint(1, 15))
    series1.Points.Add(New SeriesPoint(2, 18))
    series1.Points.Add(New SeriesPoint(3, 25))
    series1.Points.Add(New SeriesPoint(4, 33))

    series2.Points.Add(New SeriesPoint(1, 10))
    series2.Points.Add(New SeriesPoint(2, 12))
    series2.Points.Add(New SeriesPoint(3, 14))
    series2.Points.Add(New SeriesPoint(4, 17))

    ' Add both series to the chart.
    areaChart.Series.AddRange(New Series() { series1, series2 })

    ' Set the numerical argument scale types for the series,
    ' as it is qualitative, by default.
    series1.ArgumentScaleType = ScaleType.Numerical
    series2.ArgumentScaleType = ScaleType.Numerical

    ' Access the view-type-specific options of the series.
    CType(series1.View, AreaSeriesView).Transparency = 80

    ' Access the type-specific options of the diagram.
    CType(areaChart.Diagram, XYDiagram).EnableAxisXZooming = True

    ' Hide the legend (optional).
    areaChart.Legend.Visible = False

    ' Add the chart to the form.
    areaChart.Dock = DockStyle.Fill
    Me.Controls.Add(areaChart)
End Sub

Implements

Transparency