Spread for ASP.NET 8.0 Product Documentation
Creating the Chart Control with Code
Spread for ASP.NET 8.0 Product Documentation > Developer's Guide > Working with the Chart Control > Creating Charts > Using the Chart Control in Spread > Creating the Chart Control with Code

You can create a chart with Spread methods or you can create a chart by using Chart classes and then adding the chart to Spread.

There is a Spread AddChart method and a SpreadChart constructor that can be used to create a Chart control. The AddChart method and the SpreadChart constructor have overloads that allow you to specify the cell range to get the data from, the type of series, height and width of the chart, location of the chart, the view type of the chart, and whether to show a legend.

You can control how empty cell data is displayed in the Chart control with the DataSetting property.

For more information on using Chart classes, see the Creating Plot Types topic.

Using Code

Add values to cells and then use the AddChart method to add a Chart control to Spread.

Example

The following example uses the AddChart method.

C#
Copy Code 
FpSpread1.Sheets[0].RowCount = 10;
FpSpread1.Sheets[0].ColumnCount = 10;
FpSpread1.Sheets[0].Cells[0, 1].Value = "c1";
FpSpread1.Sheets[0].Cells[0, 2].Value = "c2";
FpSpread1.Sheets[0].Cells[0, 3].Value = "c3";
FpSpread1.Sheets[0].Cells[1, 0].Value = "s1";
FpSpread1.Sheets[0].Cells[2, 0].Value = "s2";
FpSpread1.Sheets[0].Cells[3, 0].Value = "s3";
FpSpread1.Sheets[0].Cells[4, 0].Value = "s4";
FpSpread1.Sheets[0].Cells[1, 1].Value = 1;
FpSpread1.Sheets[0].Cells[2, 1].Value = 2;
FpSpread1.Sheets[0].Cells[3, 1].Value = 3;
FpSpread1.Sheets[0].Cells[4, 1].Value = 4;
FpSpread1.Sheets[0].Cells[1, 2].Value = 7;
FpSpread1.Sheets[0].Cells[2, 2].Value = 8;
FpSpread1.Sheets[0].Cells[3, 2].Value = 9;
FpSpread1.Sheets[0].Cells[4, 2].Value = 10;
FpSpread1.Sheets[0].Cells[1, 3].Value = 13;
FpSpread1.Sheets[0].Cells[2, 3].Value = 14;
FpSpread1.Sheets[0].Cells[3, 3].Value = 15;
FpSpread1.Sheets[0].Cells[4, 3].Value = 16;
FarPoint.Web.Spread.Model.CellRange range = new FarPoint.Web.Spread.Model.CellRange(0, 0, 4, 4);
FpSpread1.Sheets[0].AddChart(range, typeof(FarPoint.Web.Chart.ClusteredBarSeries), 200, 200, 0, 0, FarPoint.Web.Chart.ChartViewType.View3D, false);
VB
Copy Code 
FpSpread1.Sheets(0).RowCount = 10
FpSpread1.Sheets(0).ColumnCount = 10
FpSpread1.Sheets(0).Cells(1, 0).Value = "s1"
FpSpread1.Sheets(0).Cells(2, 0).Value = "s2"
FpSpread1.Sheets(0).Cells(3, 0).Value = "s3"
FpSpread1.Sheets(0).Cells(4, 0).Value = "s4"
FpSpread1.Sheets(0).Cells(0, 1).Value = "c1"
FpSpread1.Sheets(0).Cells(1, 1).Value = 1
FpSpread1.Sheets(0).Cells(2, 1).Value = 2
FpSpread1.Sheets(0).Cells(3, 1).Value = 3
FpSpread1.Sheets(0).Cells(4, 1).Value = 4
FpSpread1.Sheets(0).Cells(0, 2).Value = "c2"
FpSpread1.Sheets(0).Cells(1, 2).Value = 7
FpSpread1.Sheets(0).Cells(2, 2).Value = 8
FpSpread1.Sheets(0).Cells(3, 2).Value = 9
FpSpread1.Sheets(0).Cells(4, 2).Value = 10
FpSpread1.Sheets(0).Cells(0, 3).Value = "c3"
FpSpread1.Sheets(0).Cells(1, 3).Value = 13
FpSpread1.Sheets(0).Cells(2, 3).Value = 14
FpSpread1.Sheets(0).Cells(3, 3).Value = 15
FpSpread1.Sheets(0).Cells(4, 3).Value = 16
Dim range As New FarPoint.Web.Spread.Model.CellRange(0, 0, 4, 4)
FpSpread1.Sheets(0).AddChart(range, GetType(FarPoint.Web.Chart.ClusteredBarSeries), 200, 200, 0, 0, FarPoint.Web.Chart.ChartViewType.View3D, False)

Using Code

You can also use chart classes to create a chart and then add the chart to the Spread control.

Example

The following example demonstrates creating a Y Plot chart and adding unbound data to the control.

C#
Copy Code 
BarSeries series = new BarSeries();
series.SeriesName = "Series 0";
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);
LabelArea label = new LabelArea();
label.Text = "Bar Chart";
label.Location = new PointF(0.5f, 0.02f);
label.AlignmentX = 0.5f;
label.AlignmentY = 0.0f;
LegendArea legend = new LegendArea();
legend.Location = new PointF(0.98f, 0.5f);
legend.AlignmentX = 1.0f;
legend.AlignmentY = 0.5f;
ChartModel model = new ChartModel();
model.LabelAreas.Add(label);
model.LegendAreas.Add(legend);
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);
VB
Copy Code 
Dim series As New FarPoint.Web.Chart.BarSeries()
series.SeriesName = "Series 0"
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 PointF(0.2F, 0.2F)
plotArea.Size = New SizeF(0.6F, 0.6F)
plotArea.Series.Add(series)
Dim label As New FarPoint.Web.Chart.LabelArea()
label.Text = "Bar Chart"
label.Location = New PointF(0.5F, 0.02F)
label.AlignmentX = 0.5F
label.AlignmentY = 0.0F
Dim legend As New FarPoint.Web.Chart.LegendArea()
legend.Location = New PointF(0.98F, 0.5F)
legend.AlignmentX = 1.0F
legend.AlignmentY = 0.5F
Dim model As New FarPoint.Web.Chart.ChartModel()
model.LabelAreas.Add(label)
model.LegendAreas.Add(legend)
model.PlotAreas.Add(plotArea)
Dim chart As New FarPoint.Web.Spread.Chart.SpreadChart()
chart.Model = model
FpSpread1.Sheets(0).Charts.Add(chart)

 

 

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