主题：行赋值可以吗?

For Each dr1 As DataRow In DataTables("表A").DataRows
    Dim dr2 As DataRow = DataTables("表B").AddNew()
    dr2=dr1
Next

我在表A和表B各输入了几个数,在命令窗口执行上面的指令后,表B是多了10行,但全部是空行,表A里的数值没有过来?

For Each dr1 As DataRow In DataTables("表A").DataRows
Dim dr2 As DataRow = DataTables("表B").AddNew()
dr2(列名) =dr1（列名）
Next

一列一列赋值我知道,我的意思是如果两个表一样的,也不能一行直接赋值给另一行呀

 For Each dr1 As DataRow In DataTables("表A").DataRows
    Dim dr3 As DataRow = DataTables("表B").AddNew()
    For Each dr2 As DataCol In DataTables("表A").DataCols
        dr3(dr2.Name) =dr1(dr2.Name)
    Next
Next