主题：[求助]DataSource导致DataColChanged事件失效

Dim cmd As New SQLCommand

Dim dt As DataTable

cmd.C

cmd.CommandText = "Select * From {MA14_MRP_Detail} where ([SNo] Not IN(Select [MRPSNo] From {PU02_Order_Detail})) And ([BillNo] In(Select [BillNo] From {MA14_MRP} where [State] = 2)) And [Qty] > 0 And [PurchaseOrProduce] = '采购'"

dt = cmd.ExecuteReader

Tables("SQLTest_Table1").DataSource = dt

然后在 窗口表的DataColChanged事件中输入代码，这段代码就会失效，请问为什么，如何解决？