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-- 发布时间：2015/9/5 10:34:00
-- 图表
你好
要从表A中获得数据生成图表，从DropDownBox下拉窗口目录树选择设备编号后能自动生成被选中设备最近12个月的耗时
x轴是最近12个月的月份(显示年月)
Y轴是对应月份的设备时间统计
请帮忙写下XY轴代码
-- 发布时间：2015/9/5 11:46:00
--
麻烦上个测试例子
-- 发布时间：2015/9/5 13:27:00
--
希望X轴是最近12个月的月份，文本为年月，如本月2015-09，上月2015-08
Y轴是对应月的耗时
Dim Chart As WinForm.Chart
Dim Series As WinForm.ChartSeries
Dim tjcz As WinForm.DropDownBox = e.Form.Controls("机器号")
Dim y As Integer = Date.Today.Year
Dim m As Integer = Date.Today.Month
Dim nym As new Date=Date.Today(y,m)
Dim tbl As DataTable = DataTables("停机处置")
Dim lst As List(Of String) = tbl.GetValues("机器号","机器号= \'" & tjcz.text & "\' And [耗时]> 0" )
Chart = e.Form.Controls("Chart1")
Chart.ChartType = ChartTypeEnum.Bar
Chart.SeriesList.Clear() \'
Series = Chart.SeriesList.Add()
Series.Length = 12
For i As Integer = m To m-11
Series.X(i) = i
Series.Y(i) = tbl.Compute("Avg(耗时)","[机器号] = \'" & lst(i) & "\' and 机器号= \'" & tjcz.text & "\' And [耗时]> 0")
Chart.AxisX.SetValueLabel(i, lst(i))
Next
-- 发布时间：2015/9/5 15:37:00
--
Dim Chart As WinForm.Chart
Dim Series As WinForm.ChartSeries
Dim tjcz As WinForm.DropDownBox = e.Form.Controls("机器号")
Dim y As Integer = Date.Today.Year
Dim m As Integer = Date.Today.Month
\'Dim nym As new Date=Date.Today(y,m)
\'--------------
Dim mms() As Integer ={1,2,3,4,5,6,7,8,9,10,11,12}
Dim mms2 As new List(Of String)
For i1 As Integer = m To mms.Length - 1
mms2.Add(CStr(y-1) & "-" & mms(i1))
Next
For i2 As Integer = 0 To m-1
mms2.Add( y & "-" & mms(i2))
Next
\'--------------
Dim tbl As DataTable = DataTables("停机处置")
Dim lst As List(Of String) = tbl.GetValues("机器号","机器号= \'" & tjcz.text & "\' And [耗时]> 0" )
Chart = e.Form.Controls("Chart1")
Chart.ChartType = ChartTypeEnum.Bar
Chart.SeriesList.Clear() \'
Series = Chart.SeriesList.Add()
Series.Length = 12
For i As Integer = 0 To mms2.Count- 1
Series.X(i) = i
Series.Y(i) = tbl.Compute("Avg(耗时)","[机器号] = \'" & lst(i) & "\' and 机器号= \'" & tjcz.text & "\' And [耗时]> 0")
Chart.AxisX.SetValueLabel(i, mms2(i))
Next
Chart.AxisX.AnnoWithLabels = True
-- 发布时间：2015/9/5 17:20:00
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你好！
这段代码报错：超索引范围
-- 发布时间：2015/9/5 17:41:00
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tbl.Compute("Avg(耗时)","[机器号] = \'" & lst(i) & "\' and 机器号= \'" & tjcz.text & "\' And [耗时]> 0")
这段根据你项目改动，我没有你那些表来测试
-- 发布时间：2015/9/5 18:14:00
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你看能有帮助不
详细错误信息：
索引超出范围。必须为非负值并小于集合大小。
参数名: index
-- 发布时间：2015/9/6 9:42:00
--
看不懂你的逻辑，请上传具体例子说明问题。
-- 发布时间：2015/9/6 9:48:00
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tbl.Compute("Avg(耗时)","[机器号] = \'" & tjcz.text & "\' And [耗时]> 0") 试试
-- 发布时间：2015/9/6 16:58:00
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你好！
案例，表和窗口都有
