改一下表C的代码
If e.DataCol.name="发货" AndAlso e.DataRow.GetParentRow("表A") IsNot Nothing Then
Dim rlist As List(of DataRow)=e.DataTable.Select("A='" & e.DataRow("A") & "' and 发货=true")
If rlist.count=e.DataTable.Select("A='" & e.DataRow("A") &"'").count Then
e.DataRow.GetParentRow("表A")("全发货")=True
Else
e.DataRow.GetParentRow("表A")("全发货")=False
End If
End If