I have a team site in which I have created a custom list named “Test”. In the custom list I have created a Lookup field which allows multiple selections.

I have added a new item with multi lookup values as shown in Figure

multiloo.jpg

Code Snippet:

 
 
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using Microsoft.SharePoint;
 
namespace MultiLookup
{
    class Program
    {
        static void Main(string[] args)
        {            
            using (SPSite site = new SPSite("http://serverName/sites/Vijai"))
            {
                using (SPWeb web = site.OpenWeb())
                {
                    SPList list = web.Lists.TryGetList("Test");
                    SPListItem item = list.Items[0];
                    SPFieldLookupValueCollection values = new SPFieldLookupValueCollection(item["MultiLookup"].ToString());
                    foreach (SPFieldLookupValue value in values)
                    {
                        Console.WriteLine(value.LookupValue);
                    }
                    Console.ReadLine();
                }
            }
        }
    }
}

Output:

output.jpg