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---- [求助]临时列的问题 (http://www.foxtable.com/bbs/dispbbs.asp?boardid=2&id=47796)
-- 发布时间：2014/3/17 21:17:00
-- [求助]临时列的问题
大虾们，我用SQL查询得一个表，如下的代码
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
然后是
DataTables("SQLTest_Table1").DataCols.Add("备注",Gettype(String)) \'窗口名是 SQLTest
增加这个临时列，然后我再这个临时列输入数据，就会老是提示说该窗口表不存在此“备注”列！
请问为什么？很简单的一个问题，琢磨一晚上了，还是弄不懂？请大虾们指点下。
此主题相关图片如下：临时列.jpg
-- 发布时间：2014/3/17 21:18:00
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纠正下第三行是cmd.C
是正确的，可以查询到表的！
-- 发布时间：2014/3/17 21:22:00
--
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
dt.DataCols.Add("备注",Gettype(String)) \'窗口名是 SQLTest
Tables("SQLTest_Table1").DataSource = dt
然后是
-- 发布时间：2014/3/17 21:39:00
--
十分的谢谢了！终于弄明白了！