主题：关于图表的两个问题

ImageFormt其实在vb.net中并不是枚举，你改用Select Case语句来实现算了。

Dim Chart As WinForm.Chart = e.Form.Controls("Chart1")
Dim Series As WinForm.ChartSeries
Chart.SeriesList.Clear()
Series = Chart.SeriesList.Add()
Series.Length = 10
For j As integer = 0 to 9
    Series.X(j) = j
    Series.Y(j) = j + Rand.Next(5)
Next
Chart.HeaderText = "上标题"
Chart.FooterText = "下标题"

应该算是bug，不过这个bug不是我造成的，你只能想办法避开了

ok