[求助]查询表的筛选 - 专家坐堂 - Foxtable(狐表) - 新一代数据库软件，完美融合Access、Foxpro、Excel、vb.net之优势，人人都能掌握的快速软件开发工具!

想通过图中筛选的条件来筛选查询表然后生成图表，可是图表生成的时候有些条件可以满足，有些条件却不能满足，是代码有问题吗，麻烦大神帮忙看看~~

此主题相关图片如下：无标题.png

Dim Filter As String

With e.Form.Controls("ComboBox1")

If .Value IsNot Nothing Then

Filter = "销售平台= '" & .Value & "'"

End If

End With

With e.Form.Controls("ComboBox3")

If .Value IsNot Nothing Then

If Filter > "" Then

Filter = Filter & " And "

End If

Filter = Filter & "活动分类= '" & .Value & "'"

End If

End With

With e.Form.Controls("ComboBox2")

If .Value IsNot Nothing Then

Filter = "产品一类 = '" & .Value & "'"

End If

End With

With e.Form.Controls("ComboBox4")

If .Value IsNot Nothing Then

If Filter > "" Then

Filter = Filter & " And "

End If

Filter = Filter & "产品二类 = '" & .Value & "'"

End If

End With

With e.Form.Controls("ComboBox5")

If .Value IsNot Nothing Then

If Filter >"" Then

Filter = Filter & " And "

End If

Filter = Filter & "产品三类 = '" & .Value & "'"

End If

End With

With e.Form.Controls("DropBox1")

If .Value IsNot Nothing Then

If Filter >"" Then

Filter = Filter & " And "

End If

Filter = Filter & "产品名称= '" & .Value & "'"

End If

End With

With e.Form.Controls("DateTimePicker1")

If .Value IsNot Nothing Then

If Filter >"" Then

Filter = Filter & " And "

End If

Filter = Filter & "销售日期 >= #" & .Value & "#"

End If

End With

With e.Form.Controls("DateTimePicker2")

If .Value IsNot Nothing Then

If Filter >"" Then

Filter = Filter & " And "

End If

Filter = Filter & "销售日期 <= #" & .Value & "#"

End If

End With

If Filter > "" Then

Tables("销售分析表").Filter = Filter

End If

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("销售分析表") '定义一个变量t引用数据表

Dim sm As Integer = t.Compute("Sum(数量)") '计算总数量

Chart= Forms("线上销售情况分析").Controls("Chart1") ' 引用窗口中的图表

Chart.VisualEffect = True '加上这一行,让你的图表更漂亮

Chart.ChartType = ChartTypeEnum.Pie '图表1类型改为Bar(条形)

For Each r As Row In t.Rows

Series = Chart.SeriesList.Add() '增加一个图系

Series.Length = 1 '一个系列只能包括一个值

Series.Text = r("产品名称") & "(" & r("数量") & ")" '设置图系的标题

Series.Y(0) = r("数量") '指定值

Series.DataLabelText = Math.Round(r("数量")*100/sm,2) & "%" '计算百分比

Chart.LegendVisible = True '显示图列

Chart.LegendCompass= CompassEnum.East '图列显示在东方(右方)

什么意思，报什么错

检查你的Filter，放到sql查询窗口看数据是否正确。

呃。前面那个问题弄好了，新的问题来了~~

此主题相关图片如下：2.png

想在选择产品名称后通过查询表筛选出该产品的销量，并制出月销量图，但是出现以上错误，是什么问题啊？？

Dim g As New GroupTableBuilder("统计表1", DataTables("销售分析表"))

g.Groups.AddDef("销售日期", DateGroupEnum.day)

g.Totals.AddDef("数量", AggregateEnum.sum)

Dim d As Date = new Date(Date.Today.Year, Date.Today.Month, 1)

g.Filter = "销售日期 >= #" & d & "# and 销售日期 < #" & d.AddMonths(1) & "#"

g.Build()

MainTable = Tables("销售分析表")

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("销售分析表") '定义一个变量t引用数据表

Chart= Forms("线上销售情况分析").Controls("Chart2") ' 引用窗口中的图表

Chart.SeriesList.Clear() '清除图表原来的图系

chart.AxisX.ClearValueLabel

Chart.ChartType = ChartTypeEnum.Bar '图表类型该为Bar(条形)

Series = Chart.SeriesList.Add() '增加一个图系

Series.Length = Date.DaysInMonth(d.Year, d.Month) + 1 '设置图系的长度

For i As Integer = 1 To series.Length '指定每个数据点的位置

Dim idx As Integer = t.FindRow("销售日期 = " & i)

If Idx >= 0 Then

Series.X(i) = i '指定水平坐标

Series.Y(i) = t.Rows(idx)("数量") '指定垂直坐标

Chart.AxisX.SetValueLabel(i, t.Rows(idx)("销售日期")) '指定字符表示

Else

Series.X(i) = i '指定水平坐标

Series.Y(i) = 0

Chart.AxisX.SetValueLabel(i, i) '指定字符表示

End If

Chart.AxisX.AnnoWithLabels = True '启用字符标示

谢谢指导，自己摸好了~

大红袍大神，求助四楼的问题

Dim idx As Integer = t.FindRow("销售日期 = " & i)

改成

Dim idx As Integer = t.FindRow("销售日期 = #" & d.AddDays(i-1) & "#")

-----------------

再有问题，请上传具体例子

主题：[求助]查询表的筛选