标题：QueryBuilder产生的table不能用count 返回行数?(已解决)

代码如下.... 
Dim q As new QueryBuilder
    q.TableName = "清单"
    q.SelectString = "select 住院ID,类别,sum(round(单价 * 用量,2)) as 金额 from [H_YIZ] where (开始日期 <= '" & d & "'and 停止日期 > '" & d & "' and 停止日期 is not null) or (开始日期 <= '" & d & "' and 停止日期 is null) and 住院ID in (" & sql & ") GROUP BY 住院ID,类别"
    q.C
    q.Build
    If tables("清单").rows.count > 0 Then

中间省略..........

  Else
        MsgBox("该日无数据!",64,"提示")
  End If
       

此主题相关图片如下：001.jpg

我测试不存在这个问题。
你的问题应该不是红色的部分造成的。

未更新前还好好的...
看全部代码...
Dim dt As DataTable
Dim cmd As New SQLCommand
cmd.C
Dim sql as string = e.Form.Controls("CheckListBox1").value
Dim d as string = e.Form.Controls("DateTimePicker1").value
If sql = "" Then
    MsgBox("请至少选择一名患者!",64,"提示")
Else If d = nothing Then
    MsgBox("请选择清单日期!",64,"提示")
Else
    Dim q As new QueryBuilder
    q.TableName = "一日清单"
    q.SelectString = "select 住院ID,类别,sum(round(单价 * 用量,2)) as 金额 from [H_YIZ] where (开始日期 <= '" & d & "'and 停止日期 > '" & d & "' and 停止日期 is not null) or (开始日期 <= '" & d & "' and 停止日期 is null) and 住院ID in (" & sql & ") GROUP BY 住院ID,类别"
    q.C
    q.Build
    If tables("一日清单").rows.count > 0 Then
       
        Dim doc As New PrintDoc
        Dim rt As Prt.RenderTable
        Dim tbl As Table = Tables("一日清单")
        Dim Rows As List(Of DataRow)
        Dim Regions As List(Of String) = tbl.DataTable.GetUniqueValues("","住院ID")
        doc.Pagesetting.LandScape = false
        For Each Region As String In Regions
            Dim rs As New prt.RenderTable
            Dim dr As DataRow = datatables("住院信息").find("[住院ID] = '" & region & "'")
            rs.Cells(0,0).Text =  tables("单位信息")(0)("单位名称") & "住院费用每日清单"
            rs.Cells(0,1).Text = " "
            rs.Cells(1,1).Text = "床位:   " & dr("床位") & "   姓名:  " & dr("姓名") & "   住院号 :  " & dr("住院号")
            rs.Cells(1,0).Text = "费用日期: " & d
            rs.Cells(0,0).SpanCols = 2
            rs.Style.FontSize = 10
            rs.Cells(0,0).Style.FontBold = True
            rs.Cells(0,0).Style.TextAlignHorz = prt.AlignHorzEnum.Center
            doc.Body.Children.Add(rs)
           
            rt = New prt.RenderTable
            rt.Style.TextAlignVert = prt.AlignVertEnum.Center
            rt.Style.GridLines.Top = New prt.LineDef(0.4,Color.Black)
            rt.Style.Spacing.Bottom = 5
            rt.CellStyle.Spacing.All = 1
            rt.Style.Font = tbl.Font
            Rows = tbl.Datatable.Select("[住院ID] = '" & Region & "'")
            rt.Cells(0,0).Text = "项目"
            rt.Cells(0,1).Text = "金额"
            rt.Cells(0,2).Text = "项目"
            rt.Cells(0,3).Text = "金额"
            rt.Cells(0,4).Text = "项目"
            rt.Cells(0,5).Text = "金额"
            For r As Integer = 0 To Rows.Count - 1
                Dim x As  Integer = (r Mod 6)+1
                Dim y As Integer = (r \ 6) * 2
                rt.Cells(x,y).Text = Rows(r)("类别")
                rt.Cells(x,y+1).Text = Rows(r)("金额") & "元"
            Next
            Dim i as double = 0
            For ii as integer = 0 To Rows.Count - 1
                i = i + Rows(ii)("金额")
            Next
            rt.Cells(6,4).Text = "合计 :"
            rt.Cells(6,5).Text = i & "元"
           
            rt.RowGroups(0,1).Header = prt.TableHeaderEnum.All
            rt.Style.Gridlines.Horz = New prt.Linedef(0.3,Color.LightGray)
            doc.Body.Children.Add(rt)
           
        Next
       
        doc.preview()
    Else
        MsgBox("该日无数据!",64,"提示")
    End If
End If

这个很好办。
按帮助中介绍的，先定为错误位置，然后分析原因。

搞不定的话，做个例子传上来。

我放了该按键全部代码上来...您看看问题出哪里.

传项目上来，说明代码在哪个窗口的哪个按钮。

老爹...找到问题所在...
select 住院ID,类别,sum(round(单价 * 用量,2)) as 金额 from [H_YIZ] where (开始日期 <= '" & d & "'and 停止日期 > '" & d & "' and 停止日期 is not null) or (开始日期 <= '" & d & "' and 停止日期 is null) and 住院ID in (" & sql & ") GROUP BY 住院ID,类别

把"="号去掉就不会出错!!!.....WHY?难道日期比较不能用<=?

也许问题不在这里。你留意一下生成的查询表，是不是确实筛选出了你要的内容。

 

可以肯定问题在这里啊...去掉=号虽然筛选的数据不合要求..但功能完全正常..连MsgBox弹出都正常.(这个相当于OutPut.show了.)

就算筛选不出数据也应该弹出MsgBox呀..

难道是中间的代码出错? 我再检查下..

真是见鬼了....2种方式的筛选数据完全正常...单纯一个按钮啊....同样的操作,同样的临时表....就是不知道问题在哪...

两种筛选方式出来的数据除了行数不同,其他是一样的啊...

此主题相关图片如下：001.jpg


此主题相关图片如下：002.jpg