Multiple datatables in vb.net 2010

If the For loop mandatory? There is the Copy method which you could use.

Dim dt1 As New DataTable()
Dim dt2 As New DataTable()

dt1.Columns.Add("col1", GetType(Integer))
dt1.Columns.Add("col2", GetType(String))

dt1.Rows.Add(1, "Red")
dt1.Rows.Add(2, "Blue")
dt1.Rows.Add(3, "Green")

dt2 = dt1.Copy()

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Yes for loop is mandatory because i want to change data in datatable1 in some specific rows.so tell me how can i do this?

its done thank you