DataField Property (DoubleCollection)

Gets or sets the field in the data source that supplies the double values.

Syntax

Visual Basic
C#

'Declaration
 
Public Property DataField As String

'Usage
 
Dim instance As DoubleCollection
Dim value As String
 
instance.DataField = value
 
value = instance.DataField

public string DataField {get; set;}

Exceptions

Exception	Description
System.ArgumentNullException	value is a null reference (Nothing in VB).

Example

This example sets the DataField property.

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;

Visual Basic

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

Requirements

Target Platforms: Windows 2000 Professional (SP4), Windows 2000 Server, Windows 2003 Server (SP1), Windows Server 2012 R2, Windows 2008, Windows XP (SP2), Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10

Reference

DoubleCollection Class
DoubleCollection Members