Adding Multiple Lookup field by code in Sharepoint

Hi all,
here is simple code to add Multiple lookup fields by code in SharePoint
SPFieldLookupValueCollection spConnectionMethod = new SPFieldLookupValueCollection();
foreach (ListItem li in rdbconnection.Items)
{
if (li.Selected)
{
spConnectionMethod.Add(new SPFieldLookupValue(Convert.ToInt32(li.Value.ToString().Split('@')[0].ToString()), li.Text));
}
}
litem["Connection"] = spConnectionMethod