A fill effect is when the interior of an object is painted. Three types of fill effects are solid, gradient, and image. A solid fill effect uses a single color and a gradient fill uses two colors and a direction. An image fill effect uses an image instead of a color for the fill.

The following elements can have fill effects: label, legend, wall, stripe, and the chart itself.

The following fill effects are available in the Fill class:

• No Fill
• Solid Fill
• Image Fill
• Gradient Fill

You can fill elements using the Fill property in the following classes:

• ChartModel
• LabelArea
• LegendArea
• Stripe
• Wall

To set the fill effect for the entire plot area, you can set the Fill property of the wall for the plot area. For example, for a y-plot, you can set the fill of the wall set by the BackWall property in the YPlotArea class.

Using Code

1. Create a series.
2. Use fill properties to change the color of the bars in the chart.
3. Add the series to the plot area.

Example

The following example sets a fill effect for a bar.

BarSeries series = new BarSeries();
series.BarFill = new SolidFill(Color.Red);
series.Values.Add(2.0);
series.Values.Add(4.0);
series.Values.Add(3.0);
series.Values.Add(5.0);
YPlotArea plotArea = new YPlotArea();
plotArea.Location = new PointF(0.2f, 0.2f);
plotArea.Size = new SizeF(0.6f, 0.6f);
plotArea.Series.Add(series);
ChartModel model = new ChartModel();
model.PlotAreas.Add(plotArea);
FarPoint.Web.Spread.Chart.SpreadChart chart = new FarPoint.Web.Spread.Chart.SpreadChart();
chart.Model = model;
FpSpread1.Sheets[0].Charts.Add(chart);

Dim series As New FarPoint.Web.Chart.BarSeries()
series.BarFill = New FarPoint.Web.Chart.SolidFill(System.Drawing.Color.Red)
series.Values.Add(2.0)
series.Values.Add(4.0)
series.Values.Add(3.0)
series.Values.Add(5.0)
Dim plotArea As New FarPoint.Web.Chart.YPlotArea()
plotArea.Location = New System.Drawing.PointF(0.2F, 0.2F)
plotArea.Size = New System.Drawing.SizeF(0.6F, 0.6F)
plotArea.Series.Add(series)
Dim model As New FarPoint.Web.Chart.ChartModel()
model.PlotAreas.Add(plotArea)
Dim chart As New FarPoint.Web.Spread.Chart.SpreadChart()
chart.Model = model
FpSpread1.Sheets(0).Charts.Add(chart)

Using Code

You can set the fill effect before or after adding the data points if you set the fill effect for the entire series.

Example

The following example sets a fill effect for a bar.

BarSeries series = new BarSeries();
series.BarFill = new SolidFill(Color.Red);
series.Values.Add(2.0);
\\ OR
BarSeries series = new BarSeries();
series.Values.Add(2.0);
series.BarFill = new SolidFill(Color.Red);

Dim series As New FarPoint.Web.Chart.BarSeries()
series.BarFill = New SolidFill(Color.Red)
series.Values.Add(2.0)
' OR
Dim series As New FarPoint.Web.Chart.BarSeries()
series.Values.Add(2.0)
series.BarFill = New SolidFill(Color.Red)

Using Code

If you set the fill effect for a single data point, then you need to assign the fill effect after you add the data point, so there is a data point to store the fill effect in.

Example

The following example sets a fill effect for a bar.

BarSeries series = new BarSeries();
series.Values.Add(2.0);
series.Values.Add(4.0);
series.BarFills.Add(new SolidFill(Color.Green));

Dim series As New FarPoint.Web.Chart.BarSeries()
series.Values.Add(2.0)
series.Values.Add(4.0)
series.BarFills.Add(New SolidFill(Color.Green))

Using Code

You can assign fill effects for lines and markers as well.

Example

The following example sets a fill effect for a marker.

PointSeries series = new PointSeries();
series.PointFill = new SolidFill(Color.Lime);
series.PointBorder = new SolidLine(Color.Red);
series.PointMarker = new BuiltinMarker(MarkerShape.Triangle, 10.0f);
series.Values.Add(2.0);
series.Values.Add(4.0);
series.Values.Add(3.0);
series.Values.Add(5.0);

Dim series As New PointSeries()
series.PointFill = New SolidFill(Color.Lime)
series.PointBorder = New SolidLine(Color.Red)
series.PointMarker = New BuiltinMarker(MarkerShape.Triangle, 10F)
series.Values.Add(2.0)
series.Values.Add(4.0)
series.Values.Add(3.0)
series.Values.Add(5.0)

Using the Chart Designer

1. Create a chart with values.
2. Select the series.
3. Select the Fill option.
4. Set properties as needed.
5. Select Apply and OK to close the Chart Designer.

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