how to move data between a pair of repeater using c#

Let you have two reapeter named rpt1 and rpt2. You want to transfer Item from rpt1to rpt2 on button click which are clicked. I think this is the best solution for you.....check it

protected void btnSend_Click(object sender, EventArgs e)
    {        
        DataTable dt = new DataTable();
        dt.Columns.Add("MenuName");
        dt.Columns.Add("MenuID");

        foreach (RepeaterItem grdRow in rpt1.Items) ////////////// Add new Data from repeater TO Datatable DT
        {
            if (((CheckBox)grdRow.FindControl("chkSelect")).Checked)
            {
                DataRow drow = dt.NewRow();

                Label lblMenuName = (Label)grdRow.FindControl("lblMenuName");

                HiddenField hdnID = (HiddenField)grdRow.FindControl("hdnID");

                drow["MenuName"] = lblMenuName.Text;
                drow["MenuID"] = hdnID.Value;

                dt.Rows.Add(drow);
            }
        }
        if (dt.Rows.Count > 0)
        {
            rpt2.DataSource = dt;
            rpt2.DataBind();
        }
    }

protected void rpt2_RowDataBound(object sender, RepeaterItemEventArgs e)
    {

        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
        {
            DataRowView dr = (DataRowView)e.Item.DataItem;

            //e.Row.Cells[0].Text = dr["MenuName"].ToString();
            Label lblMenuName = e.Item.FindControl("lblMenuName") as Label;
            lblMenuName.Text = dr["MenuName"].ToString();

            HiddenField hdnID = e.Item.FindControl("hdnID") as HiddenField;
            hdnID.Value = dr["MenuID"].ToString();
        }
    }