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Setting The Background

caution

RadChart has been replaced by RadHtmlChart, Telerik's client-side charting component. If you are considering RadChart for new development, examine the RadHtmlChart documentation and online demos first to see if it will fit your development needs. If you are already using RadChart in your projects, you can migrate to RadHtmlChart by following these articles: Migrating Series, Migrating Axes, Migrating Date Axes, Migrating Databinding, Features parity. Support for RadChart is discontinued as of Q3 2014, but the control will remain in the assembly so it can still be used. We encourage you to use RadHtmlChart for new development.

RadChart offers a variety of ways to define backgrounds. Here are the main scenarios:

1. Solid color

… -> FillStyle -> FillType -> Solid

… -> FillStyle -> MainColor ->

2. Simple 2-color gradient

… -> FillStyle -> FillType : Gradient

… -> FillStyle -> MainColor ->

… -> FillStyle -> SecondColor ->

… -> FillStyle -> FillSettings -> GradientMode ->

3. Complex Gradient

… -> FillStyle -> FillType -> ComplexGradient

… -> FillStyle -> FillSettings -> ComplexGradient -> Collection ->

… -> FillStyle -> FillSettings -> GradientAngle ->

4. Hatch (2-color pattern)

… -> FillStyle -> FillType -> Hatch

… -> FillStyle -> MainColor ->

… -> FillStyle -> SecondColor ->

… -> FillStyle -> FillSettings -> HatchStyle ->

5. Custom Image

… -> FillStyle -> FillType -> Image

… -> FillStyle -> FillSettings -> BackgroundImage ->

… -> FillStyle -> FillSettings -> ImageAlign ->

… -> FillStyle -> FillSettings -> ImageDrawMode ->

… -> FillStyle -> FillSettings -> ImageFlip ->

6. Opacity

You can achieve opacity by specifying an alpha transparency to the color, in addition to the red-green-blue values. The alpha value should come first, like this:

[transparency level0 - 255]; [red 0 - 255]; [green 0 - 255]; [blue 0 - 255]

The greater the opacity value, the less transparent the background is.