主题：[求助]这段代码会出错？发生无法处理的异常！

Dim bd1 As New sqlGroupTableBuilder("统计表1","装修明细")
Dim dt1 As fxDataSource
bd1.C
Dim Cols1() As String = {"项目编号","档案编号"}
Dim Cols2() As String = {"项目编号","档案编号"}
bd1.AddTable("装修明细",Cols1,"权利人名单",Cols2)
bd1.Groups.AddDef("权利人") '根据产品分组
bd1.Totals.AddDef("补偿金额","装修补偿") '对数量进行统计
dt1 = bd1.BuildDataSource()

Dim bd2 As New sqlGroupTableBuilder("统计表2","农房")
Dim dt2 As fxDataSource
bd2.C
Dim Cols11() As String = {"项目编号","档案编号"}
Dim Cols22() As String = {"项目编号","档案编号"}
bd2.AddTable("农房",Cols11,"权利人名单",Cols22)
bd2.Groups.AddDef("权利人") '根据产品分组
bd2.Totals.AddDef("评估价格","房屋补偿") '对数量进行统计
dt2 = bd2.BuildDataSource()

dt1.Combine(Cols1,dt2,Cols11)
Tables("统计查询_Table1").DataSource = dt1 '将统计结果绑定到Table

解决了，是我代码错了