主题：[求助] Relations.Add 句出错

表必须显示出来才能用，如果是dt的话，你要显示到table上才行。

Dim q As new QueryBuilder
q.TableName = "表Z"
q.SelectString = "select * from {表A}"
q.Build
Dim dt1 As DataTable = DataTables("表Z")

Dim q1 As new OuterTableBuilder
q1.TableName = "表T"
q1.SelectString = "select * from {表B} "
q1.Build

Dim dt2 As DataTable = DataTables("表T")
Relations.Add("abc", dt1.DataCols("第一列"), dt2.DataCols("第二列"))