标题：SQLGroupTableBuilder

对后台数据进行分组统计时，统计的实工时间已分钟为单位，如何把分钟单位换算成小时单位。

b.Groups.AddDef("加工人") '根据产品分组
b.Totals.AddDef("实工") '对数量进行统计
b.Totals.AddExp("小时", "实工 / 60") 

提示：统计错误，错误原因：输出别名‘金额’重复。

麻烦贴出完整代码

For Each dt As DataTable In DataTables
    dt.Save()
Next
Dim Filter As String
Dim b As New SQLGroupTableBuilder("完成工时统计", "工艺内容")
b.C
Dim ymd1 As WinForm.DateTimePicker = e.Form.Controls("DateTimePicker03")
Dim ymd2 As WinForm.DateTimePicker = e.Form.Controls("DateTimePicker04")
If ymd1.Value IsNot Nothing AndAlso ymd2.Value IsNot Nothing Then
    Filter = "{工艺内容}.完成加工日期 >=  #" & ymd1.value & "# And {工艺内容}.完成加工日期 <= #" & ymd2.value & "#"
    If Filter > "" Then
        b.Filter = Filter
    End If
End If
b.Groups.AddDef("加工人") '根据产品分组
b.Totals.AddDef("实工") '对数量进行统计
b.Totals.AddExp("小时", "实工 / 60")
b.Build '生成统计表
Maintable = Tables("完成工时统计") '打开生成的统计表
If b.Filter <> Nothing Then
    b.Build()
    Dim Book As New XLS.Book(ProjectPath & "Attachments\完成工时统计.xls")
    Dim fl As String = ProjectPath & "Reports\完成工时统计\完成工时统计-" & "-" & Date.Today & ".xls"
    Dim Sheet As XLS.Sheet = Book.Sheets(0)
    Book.Build() '生成报表
    Book.Save(fl)
    Dim Proc As New Process
    Proc.File = fl
    Proc.Start()
End If

{工艺内容}是个查询表？

工艺内容是主表

 

此主题相关图片如下：1.png

1、关闭退出项目，删除项目所在的文件夹里的bin目录，然后重启项目试试。

数据库是access,按7楼方法改正后，还是一样。没有b.Totals.AddExp("小时", "实工 / 60")这句代码时候，可生成统计表，工时是已以分钟为单位。
此主题相关图片如下：11 (2).png

上示例

For Each dt As DataTable In DataTables
    dt.Save()
Next
Dim Filter As String
Dim b As New SQLGroupTableBuilder("完成工时统计", "工艺内容")
b.C
Dim ymd1 As WinForm.DateTimePicker = e.Form.Controls("DateTimePicker03")
Dim ymd2 As WinForm.DateTimePicker = e.Form.Controls("DateTimePicker04")
If ymd1.Value IsNot Nothing AndAlso ymd2.Value IsNot Nothing Then
   Filter = "完成加工日期 >=  #" & ymd1.value & "# And 完成加工日期 <= #" & ymd2.value & "#"
    If Filter > "" Then
        b.Filter = Filter
    End If
End If
b.Groups.AddDef("加工人") '根据产品分组
b.Totals.AddDef("实工") '对数量进行统计
b.Totals.AddExp("小时", "实工 / 60")
b.Build '生成统计表
Maintable = Tables("完成工时统计") '打开生成的统计表
If b.Filter <> Nothing Then
    b.Build()
    Dim Book As New XLS.Book(ProjectPath & "Attachments\完成工时统计.xls")
    Dim fl As String = ProjectPath & "Reports\完成工时统计\完成工时统计-" & "-" & Date.Today & ".xls"
    Dim Sheet As XLS.Sheet = Book.Sheets(0)
    Book.Build() '生成报表
    Book.Save(fl)
    Dim Proc As New Process
    Proc.File = fl
    Proc.Start()
End If

此主题相关图片如下：11 (1).png