Spread Windows Forms 7.0 Product Documentation
Using a Bound Data Source
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Spread Windows Forms 7.0 Product Documentation > Developer's Guide > Working with the Chart Control > Creating Charts > Connecting to Data > Using a Bound Data Source

Glossary Item Box

You can bind the chart to the following data sources:

When the chart is bound to data, it dynamically plots the data when it paints. A single chart can support (and display) data from multiple data sources and multiple data fields within a data source. For more information about the DataSource property, refer to the specific chart type in the Assembly Reference (for example: SeriesNameDataSource in the RadarLineSeries class).

Using Code

Create a data source and then bind the control.

Example

The following example demonstrates how to bind the control to a data source.

C# Copy Code
// Create an array and bind the control
object[] values = new object[] { 2, 4.0, 3.0m, "5.0" };
BarSeries series = new BarSeries();
series.Values.DataSource = values;
VB Copy Code
' Create an array and bind the control
Dim values() As Object = {2, 4.0, 3.0D, "5.0"}
Dim series As New BarSeries()
series.Values.DataSource = values

Using Code

Create a data source and then bind the control.

Example

The following example demonstrates how to bind the control to a data table.

C# Copy Code
DataTable dt = new DataTable("Test");
DataRow dr = default(DataRow);
dt.Columns.Add("Series0");
dt.Columns.Add("Series1");
dr = dt.NewRow();
dr[0] = 2;
dr[1] = 1;
dt.Rows.Add(dr);
dr = dt.NewRow();
dr[0] = 4;
dr[1] = 2;
dt.Rows.Add(dr);
dr = dt.NewRow();
dr[0] = 3;
dr[1] = 4;
FarPoint.Win.Chart.BarSeries series = new FarPoint.Win.Chart.BarSeries();
series.Values.DataSource = dt;
series.Values.DataField = dt.Columns[0].ColumnName;
FarPoint.Win.Chart.YPlotArea plotArea = new FarPoint.Win.Chart.YPlotArea();
FarPoint.Win.Chart.ChartModel model = new FarPoint.Win.Chart.ChartModel();
plotArea.Location = new PointF(0.2F, 0.2F);
plotArea.Size = new SizeF(0.6F, 0.6F);
plotArea.Series.Add(series);
model.PlotAreas.Add(plotArea);
fpChart1.Model = model;
VB Copy Code
Dim dt As New DataTable("Test")
Dim dr As DataRow
dt.Columns.Add("Series0")
dt.Columns.Add("Series1")
dr = dt.NewRow()
dr(0) = 2
dr(1) = 1
dt.Rows.Add(dr)
dr = dt.NewRow()
dr(0) = 4
dr(1) = 2
dt.Rows.Add(dr)
dr = dt.NewRow()
dr(0) = 3
dr(1) = 4
dt.Rows.Add(dr)
Dim series As New FarPoint.Win.Chart.BarSeries
series.Values.DataSource = dt
series.Values.DataField = dt.Columns(0).ColumnName
Dim model As New FarPoint.Win.Chart.ChartModel()
Dim plotArea As New FarPoint.Win.Chart.YPlotArea()
plotArea.Location = New PointF(0.2F, 0.2F)
plotArea.Size = New SizeF(0.6F, 0.6F)
plotArea.Series.Add(series)
model.PlotAreas.Add(plotArea)
FpChart1.Model = model

See Also

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