In the ChartControl, colors can be used in different ways to enhance the chart's appearance, distinguish different series, point out or draw attention to data information such as averages, and more.

Color Palettes

The ChartControl includes several pre-defined color palettes that can be used to automatically set the colors for data values in a series. The pre-defined palettes are as follows.

Default The default palette.
Cascade A cascade of eight cool colors ranging from deep teal down through pale orchid.
Springtime The colors of spring, in deep green, two vivid colors and five pastels.
Iceberg A range of the soft blues and greys found in an iceberg.
Confetti A sprinkling of bright and pastel colors.
Greens A palette of greens.
Berries The colors of berries.
Autumn A quiet palette of autumn colors.
Murphy A range of the soft blues and greens.

These enumerated values are accessed through the Series class with code like the following.

To write code in Visual Basic.NET

Visual Basic	Copy Code
Me.ChartControl1.Series(0).ColorPalette = Chart.ColorPalette.Iceberg

To write code in C#

C#	Copy Code
this.ChartControl1.Series[0].ColorPalette = GrapeCity.ActiveReports.Chart.ColorPalette.Iceberg;

Gradients

Gradients can be used in object backdrops to enhance the visual appearance of various chart items. Gradients can be used in the following chart sections:

Chart
Chart area
Wall
Title
Legend
Legend item (for custom legend items)
WallRange
Series
Data point
Marker
Marker Label
Annotation TextBar

You can set gradients for a backdrop at run time by creating a BackdropItem, setting its Style property to Gradient, setting the GradientType, and setting the two colors to use for the gradient as shown in the following example.

To write code in Visual Basic.NET

Visual Basic	Copy Code
Imports GrapeCity.ActiveReports.Chart.Graphics

Visual Basic	Copy Code
Dim bItem As New GrapeCity.ActiveReports.Chart.BackdropItem bItem.Style = Chart.Graphics.BackdropStyle.Gradient bItem.Gradient = Chart.Graphics.GradientType.Vertical bItem.Color = Color.Purple bItem.Color2 = Color.White Me.ChartControl1.Backdrop = bItem

To write code in C#