主题：[求助]请问这个分组统计代码哪里有问题，谢谢

Dim g As New SQLGroupTableBuilder("分组统计表","入库表")

Dim y As Integer = 2013 '指定年份

Dim m As Integer = 5 '指定月份

Dim dt1 As New Date(y, m, 1)

Dim dt2 As New Date(y, m, Date.DaysInMonth(y,m)) '获取该月的最后一天

g.Groups.AddDef("入库日期")

g.Groups.AddDef("品名")

g.Groups.AddDef("规格")

g.Groups.AddDef("材质")

g.Groups.AddDef("零件号")

g.Groups.AddDef("国标")

g.Groups.AddDef("炉号")

g.Groups.AddDef("等级")

g.Groups.AddDef("品牌")

g.Groups.AddDef("储位")

g.Totals.AddDef("入库数量")

g.Filter = "入库日期 >= #" & dt1 & "# And 入库日期 <= #" & dt2 & "#"

g.Build()

筛选5月份并分组统计