从数据库绑定
1 Dim Chart1 As New Chart
2 Dim mySeries As New Series("Default")
3 Dim myChartArea As New ChartArea
4 Chart1.ChartAreas.Add(myChartArea)
5
6 mySeries.Type = SeriesChartType.Column
7
8 mySeries.Points.DataBindXY(ds.Tables("table").DefaultView, "name", ds.Tables("table").DefaultView, "sales")
9 Chart1.Series.Add(mySeries)
10
11 '显示Chart
12 Chart1.Page = Me
13 Chart1.RenderControl(New HtmlTextWriter(Page.Response.Output))
14 Chart1.Dispose()
2 Dim mySeries As New Series("Default")
3 Dim myChartArea As New ChartArea
4 Chart1.ChartAreas.Add(myChartArea)
5
6 mySeries.Type = SeriesChartType.Column
7
8 mySeries.Points.DataBindXY(ds.Tables("table").DefaultView, "name", ds.Tables("table").DefaultView, "sales")
9 Chart1.Series.Add(mySeries)
10
11 '显示Chart
12 Chart1.Page = Me
13 Chart1.RenderControl(New HtmlTextWriter(Page.Response.Output))
14 Chart1.Dispose()
DataBindXY方法如下
1 Public Sub DataBindXY(ByVal xValue As System.Collections.IEnumerable, ByVal xField As String, ByVal yValue As System.Collections.IEnumerable, ByVal yFields As String)
2 成员属于: Dundas.Charting.WebControl.DataPointCollection
3
4 摘要:
5 Data bind X and Y values of the data points to the data source. Data source can be the Array, Collection, Ole(SQL)DataReader, DataView, DataSet, DataTable or DataRow.
6
7 参数:
8 xValue: Enumerable object with X values.
9 xField: Name of the field for X values.
10 yValue: Enumerable objects with Y values.
11 yFields: Comma separated name(s) of the field(s) for Y value(s).
12
2 成员属于: Dundas.Charting.WebControl.DataPointCollection
3
4 摘要:
5 Data bind X and Y values of the data points to the data source. Data source can be the Array, Collection, Ole(SQL)DataReader, DataView, DataSet, DataTable or DataRow.
6
7 参数:
8 xValue: Enumerable object with X values.
9 xField: Name of the field for X values.
10 yValue: Enumerable objects with Y values.
11 yFields: Comma separated name(s) of the field(s) for Y value(s).
12
以下是wincontrol的简单代码
Dim myChart As Chart
Dim myChartArea As ChartArea
Dim mySeries As Series
myChart = New Chart
myChartArea = New ChartArea
myChart.ChartAreas.Add(myChartArea)
mySeries = New Series
mySeries.Type = SeriesChartType.Column
Dim conn As New OracleConnection("data source=orcl;user id=scott;password=tiger;persist security info=false;")
Dim cmd As New OracleCommand("Select ename,sal From emp ", conn)
cmd.CommandType = CommandType.Text
Dim adp As New OracleDataAdapter(cmd)
Dim ds As New DataSet
adp.Fill(ds, "d")
mySeries.Points.DataBindXY(ds.Tables("d").DefaultView, "ename", ds.Tables("d").DefaultView, "sal")
myChart.Series.Add(mySeries)
myChartArea.AxisX.Interval = 1
myChartArea.AxisY.Interval = 500
myChart.Width = Me.Width
myChart.Height = Me.Height - 300
mySeries.ShowInLegend = False
mySeries.ShowLabelAsValue = True
'myChart.BackHatchStyle = ChartHatchStyle.DashedHorizontal
myChart.BorderColor = Color.DarkCyan
'myChartArea.AxisX.MajorTickMark.Style = TickMarkStyle.None
'myChartArea.AxisY.MajorTickMark.Style = TickMarkStyle.None
' mySeries.Font = New Font("宋体", 10, FontStyle.Regular, GraphicsUnit.Display)
' myChartArea.AxisY.Arrows = ArrowsType.Triangle
myChartArea.AxisX.MajorGrid.Enabled = False
myChartArea.AxisX.Arrows = ArrowsType.Triangle
myChartArea.AxisY.MajorGrid.Enabled = False
myChartArea.AxisY.LabelStyle.Font = New Font("宋体", 1)
myChartArea.AxisY.Arrows = ArrowsType.Triangle
myChart.BorderSkin.SkinStyle = Dundas.Charting.WinControl.BorderSkinStyle.Emboss
'myChart.Show()
' myChart.Visible = True
Me.Controls.Add(myChart)
Dim myChartArea As ChartArea
Dim mySeries As Series
myChart = New Chart
myChartArea = New ChartArea
myChart.ChartAreas.Add(myChartArea)
mySeries = New Series
mySeries.Type = SeriesChartType.Column
Dim conn As New OracleConnection("data source=orcl;user id=scott;password=tiger;persist security info=false;")
Dim cmd As New OracleCommand("Select ename,sal From emp ", conn)
cmd.CommandType = CommandType.Text
Dim adp As New OracleDataAdapter(cmd)
Dim ds As New DataSet
adp.Fill(ds, "d")
mySeries.Points.DataBindXY(ds.Tables("d").DefaultView, "ename", ds.Tables("d").DefaultView, "sal")
myChart.Series.Add(mySeries)
myChartArea.AxisX.Interval = 1
myChartArea.AxisY.Interval = 500
myChart.Width = Me.Width
myChart.Height = Me.Height - 300
mySeries.ShowInLegend = False
mySeries.ShowLabelAsValue = True
'myChart.BackHatchStyle = ChartHatchStyle.DashedHorizontal
myChart.BorderColor = Color.DarkCyan
'myChartArea.AxisX.MajorTickMark.Style = TickMarkStyle.None
'myChartArea.AxisY.MajorTickMark.Style = TickMarkStyle.None
' mySeries.Font = New Font("宋体", 10, FontStyle.Regular, GraphicsUnit.Display)
' myChartArea.AxisY.Arrows = ArrowsType.Triangle
myChartArea.AxisX.MajorGrid.Enabled = False
myChartArea.AxisX.Arrows = ArrowsType.Triangle
myChartArea.AxisY.MajorGrid.Enabled = False
myChartArea.AxisY.LabelStyle.Font = New Font("宋体", 1)
myChartArea.AxisY.Arrows = ArrowsType.Triangle
myChart.BorderSkin.SkinStyle = Dundas.Charting.WinControl.BorderSkinStyle.Emboss
'myChart.Show()
' myChart.Visible = True
Me.Controls.Add(myChart)
添加警戒线(Cursor ,我自己的理解是警戒线)
Dim cursorY As Dundas.Charting.WinControl.Cursor
cursorY = myChartArea.CursorY
cursorY.LineColor = Color.RoyalBlue
cursorY.LineWidth = 2
cursorY.LineStyle = ChartDashStyle.Solid
cursorY.LineColor = Color.Red
cursorY.SelectionColor = Color.Yellow
cursorY.Position = 4500
cursorY = myChartArea.CursorY
cursorY.LineColor = Color.RoyalBlue
cursorY.LineWidth = 2
cursorY.LineStyle = ChartDashStyle.Solid
cursorY.LineColor = Color.Red
cursorY.SelectionColor = Color.Yellow
cursorY.Position = 4500
控制字体
myChartArea.AxisX.LabelsAutoFit = False
myChartArea.AxisY.LabelsAutoFit = False
myChartArea.AxisY.LabelStyle.Font = New Font("Arial", 10)
myChartArea.AxisX.LabelStyle.Font = New Font("Arial", 10)
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