vb.net统计图,vbnet统计图

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vb.net2005怎么做曲线统计图啊。

画饼图的例子，

Me.LoadDriveInfo(DrivesOnPc.Items(DrivesOnPc.SelectedIndex)) 计算比例大小

Me.Invalidate() 触发窗体绘图

'窗体画图（饼图）

Private Sub form3_paint(ByVal sender As System.Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint

'设定RECTANGLE结构变量，确定画图的范围及大小

Dim rect As Rectangle = New Rectangle(280, 20, 200, 200)

Dim rect2 As Rectangle = New Rectangle(270, 10, 400, 320)

Dim freelegend As Rectangle = New Rectangle(280, 300, 20, 20)

Dim usedlegend As Rectangle = New Rectangle(280, 275, 20, 20)

e.Graphics.DrawRectangle(Pens.Black, rect2)

e.Graphics.DrawLine(Pens.Black, 270, 260, 670, 260)

If Me.isSpaceInfoVailable = True Then

'填充椭圆图像（角度）

e.Graphics.FillPie(Brushes.Magenta, rect, 0, Sweep)

e.Graphics.FillPie(Brushes.Blue, rect, Sweep, 360 - Sweep)

'填充方形

e.Graphics.FillRectangle(Brushes.Magenta, freelegend)

e.Graphics.FillRectangle(Brushes.Blue, usedlegend)

e.Graphics.DrawString(