You can bind the chart to the following data sources.
- Array
- Array List (IList)
- List Collection
- Table
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
Use the Values property of the series to add a data source.
Example
The following example demonstrates how to bind the control to a data source.
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// 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; |
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' 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 |
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Using Code
Use the Values property of the series to add a data source.
Example
The following example demonstrates how to bind the control to a data table.
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System.Data.DataTable dt = new System.Data.DataTable("Test"); System.Data.DataRow dr = default(System.Data.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.Web.Chart.BarSeries series = new FarPoint.Web.Chart.BarSeries(); series.Values.DataSource = dt; series.Values.DataField = dt.Columns[0].ColumnName; FarPoint.Web.Chart.YPlotArea plotArea = new FarPoint.Web.Chart.YPlotArea(); FarPoint.Web.Chart.ChartModel model = new FarPoint.Web.Chart.ChartModel(); plotArea.Location = new System.Drawing.PointF(0.2F, 0.2F); plotArea.Size = new System.Drawing.SizeF(0.6F, 0.6F); plotArea.Series.Add(series); 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); |
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Dim dt As New System.Data.DataTable("Test") Dim dr As System.Data.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.Web.Chart.BarSeries series.Values.DataSource = dt series.Values.DataField = dt.Columns(0).ColumnName Dim model As New FarPoint.Web.Chart.ChartModel() 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) 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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