主题：是代码的问题么？

 是代码的问题么？

此主题相关图片如下：qq截图.png

Tables("product").save
Tables("kucun").save

Dim Cols1() As String = {"tanumru","jiecun","chuanhuoc","tasallnum","shangpinming","cord"}
Dim Cols2() As String = {"in","jie","chuanhuo","xiaoshou","name","cord"}

For Each dr1 As DataRow In DataTables("product").Select("[newnum]<>0")
    Dim dr2 As DataRow = DataTables("kucun").AddNew()
   
    For i As Integer = 0 To Cols1.Length -1
        dr2(Cols2(i)) = dr1(Cols1(i))
       
    Next
Next

DataTables("kucun1").LoadFilter = ""
DataTables("kucun1").Load

       End If

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点击浏览该文件:hao.foxdb

前面先加些数据 销售，选商品名   然后输入 数量 和价格就行

有了数据之后

点 清点库存 那个菜单。

问题已经解决，顺便在问一下，这个代码，怎么判断是否被复制过，如果被复制过，点 清点库存的时候，就不再复制已经被复制过的内容

Dim Cols1() As String = {"tanumru","jiecun","chuanhuoc","tasallnum","shangpinming","cord"}
Dim Cols2() As String = {"in","jie","chuanhuo","xiaoshou","name","cord"}

For Each dr1 As DataRow In DataTables("product").Select("[newnum]<>0")
    Dim dr2 As DataRow = DataTables("kucun").AddNew()
    
    For i As Integer = 0 To Cols1.Length -1
        dr2(Cols2(i)) = dr1(Cols1(i))
        
    Next
Next