'用SQL语句生成临时表
Dim cmd As New SQLCommand
Dim dt As DataTable
cmd.C
cmd.CommandText = "S elect * From [KB_今日计划明细] where 工序编号= '2--04' And DateDiff(dd,工序计划结束期,getdate()) < 8 "
dt = cmd.ExecuteReader()
'对临时进行分组统计
Dim b As New CrossTableBuilder("周任务趋势图",dt)
b.HGroups.AddDef("工序计划结束期")
'b.VGroups.AddDef("日期","{0}月")
b.Totals.AddDef("数量")
b.HorizontalTotal = True
b.VerticalTotal = True
b.Subtotal = True '生成汇总模式
b.Build() '生成统计表
Dim Chart As WinForm.Chart '定义一个图表变量
Dim Series As WinForm.ChartSeries '定义一个图系变量
Dim t As Table =Tables("周任务趋势图")'定义一个变量t引用数据表
'Dim t As Table = Tables("周任务趋势图")'定义一个变量t引用数据表
'Chart= Forms("窗口1").Controls("Chart1")' 引用窗口中的图表
Chart=e.Form.Controls("Chart1")
Chart.ChartType = ChartTypeEnum.Bar '图表类型该为Bar(条形)
'Chart.DataSource ="周任务趋势图统计" '设置绑定表
Chart.SeriesList.Clear() '清除图表原来的图系
Chart.AxisY.Major = 5 '主刻度间隔值为5000
Series = Chart.SeriesList.Add() '增加一个图系
Series.X.DataField ="工序计划结束期" 'X轴绑定到产品列
Series.Y.DataField ="数量" 'Y轴绑定到数量列
Chart.VisualEffect = True '加上这一行,让你的图表更漂亮
Chart.LegendVisible = True '显示图列
Chart.LegendCompass= CompassEnum.South '图列显示在南方(底端)
或者 "S elect 工序计划结束期,sum(数量) From [KB_今日计划明细] where 工序编号= '2--04' And DateDiff(dd,工序计划结束期,getdate()) < 8 group by 工序计划结束期"