Rowspan in repeater using asp.net C#

<%--

<%-- rowspan="<%# Eval("rowspan") %>"

private void bindNivoSlider()

{

string constr = ConfigurationManager.ConnectionStrings["connectionString"].ConnectionString;

using (SqlConnection con = new SqlConnection(constr))

{

using (SqlCommand cmd = new SqlCommand("select devicename, deviceid,cabinetid,cabinet,cabinet_height,deviceheight from tbl_cabinets where cabinet='" + lbl_cabinet.Text + "' and cabinetid='" + Variable.lbl_ID + "' GROUP BY devicename,devicename, deviceid,cabinetid,cabinet,cabinet_height,deviceheight order by cabinet_height desc", con))

{

using (SqlDataAdapter sda = new SqlDataAdapter(cmd))

{

DataTable table1 = new DataTable();

sda.Fill(table1);

Customers.DataSource = table1;

Customers.DataBind();

}

}

}

}