主题：[求助]怎樣取得交叉統計表的列名？

_cmd.CommandText = "Select * From {薪資匯總}"

dim sqltb2 as datatable = _cmd.ExecuteReader()
Dim bd2 As New CrossTableBuilder("统计表2",sqltb2)
Dim dt2 As fxDataSource
bd2.HGroups.AddDef("工號")

bd2.HGroups.AddDef("姓名")

bd2.HGroups.AddDef("部門編號")

bd2.HGroups.AddDef("部門名稱")

bd2.VGroups.AddDef("項目類別")
bd2.Totals.AddDef("金額") '对数量进行统计
tables("窗口1_Table1") = bd2.BuildDataSource()

怎樣取得項目類別生成的分組列名？