标题：[求助] 动态创建关联

帮助文件的示例如下：

在产品表和订单表之间，通过产品编号建立：

Relations.Add("关联1",DataTables("产品").DataCols("产品编号"),DataTables("订单").DataCols("产品编号"))

Dim n As String = Tables("综合统计").Cols(e.NewRange.ColSel).Name
Dim s as String()
Dim c As Integer

s = n.split("_")
Integer.TryParse(s(0).Replace("月",""),c)
If Vars("统计") = "会计科目" Then
 If n.IndexOf("月_借") <> -1 Then
  If Relations.Contains("zh_pz_d") Then
   Relations.delete("zh_pz_d")
  End If
  If Relations.Contains("zh_pz") Then
   Relations.delete("zh_pz")
  End If

  If Not Relations.Contains("zh_pz_j") Then
   Relations.add("zh_pz_j",DataTables("综合统计").DataCols(Vars("统计")),DataTables("凭证录入").DataCols("借方科目"))
  End If
  Tables("综合统计.凭证录入").Filter = "[年度] = " & Vars("年度") & " and [月份] = " & c
 End If

 If n.IndexOf("月_贷") <> -1 Then
  If Relations.Contains("zh_pz_j") Then
   Relations.delete("zh_pz_j")
  End If
                If Relations.Contains("zh_pz") Then
   Relations.delete("zh_pz")
  End If

  If Not Relations.Contains("zh_pz_d") Then
   Relations.add("zh_pz_d",DataTables("综合统计").DataCols(Vars("统计")),DataTables("凭证录入").DataCols("贷方科目"))
  End If
  Tables("综合统计.凭证录入").Filter = "[年度] = " & Vars("年度") & " and [月份] = " & c
 End If
Else
 If Relations.Contains("zh_pz_j") Then
  Relations.delete("zh_pz_j")
 End If
 If Relations.Contains("zh_pz_d") Then
  Relations.delete("zh_pz_d")
 End If
 If Not Relations.Contains("zh_pz") Then
  Relations.add("zh_pz",DataTables("综合统计").DataCols(Vars("统计")),DataTables("凭证录入").DataCols(Vars("统计")))
 End If
 Tables("综合统计.凭证录入").Filter = "[年度] = " & Vars("年度") & " and [月份] = " & c

End If