vb点虐 做图表 vb 图表
用VS2010怎么样能画出图表或者说如何能用Excel表格的画图功能 VB点虐
Public Class Form3
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Protected Sub iniChart()
Dim dt As New DataTable
'表增加月份、收入、支出三列
dt.Columns.Add("月份")
dt.Columns.Add("收入")
dt.Columns.Add("支出")
Dim dr As DataRow
For i As Integer = 1 To 12
'新增行
dr = dt.NewRow()
'月份 1-12月
dr.Item(0) = i "月"
Randomize()
'收入
dr.Item(1) = 3000 + Int(5000 * Rnd(8))
Randomize()
'支出
dr.Item(2) = 600 + Int(2000 * Rnd(7))
dt.Rows.Add(dr)
Next
dr = Nothing
With Me.Chart1
.DataSource = dt 'dt作为chart1的数据源
.Series.Clear()
.Legends.Clear()
.ChartAreas.Clear()
.ChartAreas.Add("收入")
.ChartAreas.Add("支出")
.Legends.Add("收入")
.Legends.Add("支出")
.Series.Add("收入")
.Series.Add("支出")
.Series("支出").ChartArea = "支出" '指定Series所属ChartArea
.Series("支出").Legend = "支出" '指定Legend所属Series
.Series("收入").LegendToolTip = "收入图例"
.Series("收入").IsValueShownAsLabel = True '标签显示数据值
.Legends("收入").DockedToChartArea = "收入" '指定Legend所属ChartArea
.Legends("支出").DockedToChartArea = "支出"
.ChartAreas("支出").Area3DStyle.Enable3D = True '启用3D样式
End With
With (Chart1.Series(0))
'指定x、y轴数据列
.YValueMembers = "收入"
.XValueMember = "月份"
'图表类型
.ChartType = DataVisualization.Charting.SeriesChartType.Column
End With
With Chart1.Series(1)
.YValueMembers = "支出"
.XValueMember = "月份"
.ChartType = DataVisualization.Charting.SeriesChartType.Pie
End With
Me.Chart1.DataBind() '绑定数据源
With Me.Chart1.Series("收入")
Dim s1 As Integer
For i As Integer = 0 To .Points.Count - 1
s1 = s1 + Val(.Points(i).GetValueByName("y"))
.Points(i).ToolTip = .Points(i).AxisLabel .Points(i).GetValueByName("y")
Next
'图例显示总收入
Me.Chart1.Legends("收入").Title = "总收入"
.LegendText = s1.ToString
End With
With Me.Chart1.Series("支出")
.IsValueShownAsLabel = True
For i As Integer = 0 To .Points.Count - 1
.Points(i).ToolTip = .Points(i).AxisLabel .Points(i).GetValueByName("y")
.Points(i).LegendText = .Points(i).AxisLabel
.Points(i).Label = "#PERCENT" '饼状图显示百分比
.SmartLabelStyle.AllowOutsidePlotArea = True
Next
End With
Me.Chart1.AlignDataPointsByAxisLabel("支出")
With Me.Chart1.Legends("支出")
.LegendStyle = DataVisualization.Charting.LegendStyle.Column
.Title = "支出"
End With
End Sub
Private Sub Form3_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Call iniChart()
Call iniCombChart()
End Sub
Private Sub iniCombChart()
Dim tps As Array
'枚举所有SeriesChartType类型
tps = System.Enum.GetValues(GetType(Windows.Forms.DataVisualization.Charting.SeriesChartType))
For Each i As Windows.Forms.DataVisualization.Charting.SeriesChartType In tps
Me.ComboBox1.Items.Add(Val(i))
Next
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Call iniChart()
End Sub
Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
With Chart1.Series(0)
'改变图表样式
Dim tps As Array
tps = System.Enum.GetValues(GetType(System.Windows.Forms.DataVisualization.Charting.SeriesChartType))
For Each i As Windows.Forms.DataVisualization.Charting.SeriesChartType In tps
If Val(i) = Me.ComboBox1.Text Then
.ChartType = i
Exit For
End If
Next
End With
End Sub
End Class
VB点虐 2008 NET 3.5 SP1，Chart控件的图表类型修改
1、检查一下是不是序列的名称不对应，进行了修改，不是默认的"Series1"；
3、修改正确或是没有错误时可全部重新生成一次看看。
希望对你有帮助，还有疑问请追问或是Hi
vb点虐 如何由已知数据生成chart图表
这个说起来有点小复杂，建议你找专门的文章学习。
比如：
vb点虐 中有没有好用的图表控件？免费的，能画折线图的
TeeChart5
这个画图表很不错。。
百度一下一大堆下载的。
标题名称：vb点虐 做图表 vb 图表
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