Cloning data or copy data

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C#

VB

Please help me guys, what i really want is to copy data(1 or all data) in datatable1 to datatable2. Im stuck of my code, dunno if it is correct

dt1 = ds1.Tables(0)
        Dim dt2 As DataTable = ds2.Tables(0)


        da1 = New MySqlDataAdapter("select s_inventoryTab_name, s_inventoryTab_stockonhand,s_inventoryTab_jan,s_inventoryTab_feb from s_medicinetab where s_inventoryTab_year = '" & 2016 & "'", con)
        da1.Fill(ds1)


        For i As Integer = 0 To dt2.Rows.Count - 1
            dt1.ImportRow(dt2.Rows(i))

        Next

I dont know if my code is correct.If there are some method, please guide me. Thanks guys

What I have tried:

It seems this code is correct but i dont understand

DataTable dtTarget = new DataTable();
    dtTarget = dtSource.Clone();
    DataRow[] rowsToCopy;
    rowsToCopy = dtSource.Select("key='" + matchString + "'");
    foreach (DataRow temp in rowsToCopy)
    {
        dtTarget.ImportRow(temp);
    }