不要重复的删除和设置关联
'建立关联开始--------------------------------------------------
MessageBox.Show(11)
If Relations.Contains("业务报关") = False Then
Relations.Add("业务报关",DataTables("业务录入").DataCols("工作号"),DataTables("报关商品").DataCols("工作号"))
End If
MessageBox.Show(22)
If Relations.Contains("报关采购") = False Then
Dim DataCols1(1) As DataCol
Dim DataCols2(1) As DataCol
DataCols1(0) = DataTables("报关商品").DataCols("工作号")
DataCols1(1) = DataTables("报关商品").DataCols("报关单项号")
DataCols2(0) = DataTables("采购信息").DataCols("工作号")
DataCols2(1) = DataTables("采购信息").DataCols("报关单项号")
Relations.Add("报关采购", DataCols1, DataCols2)
End If
MessageBox.Show(33)