Updating Items in List in SharePoint 2010 using Client Object Model (C#)

Step 1: Create New Project. (Minimum .NET Framework 3.5)

Step 2: Add “Microsoft.SharePoint.Client” and “Microsoft.SharePoint.Client.Runtime” namespaces.

Step 3: Write the following code.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

//SharePoint namespace

using Microsoft.SharePoint.Client;

namespace UpdatingListItem

{

    class Program

    {

        static void Main(string[] args)

        {

            string siteUrl = "http://sharepointserver.com";

            ClientContext clientContext = new ClientContext(siteUrl);

            clientContext.Credentials = new System.Net.NetworkCredential("admin", "password", "sharepointserver.com");

            Web site = clientContext.Web;

            //Getting List

            List list = site.Lists.GetByTitle("Students");

            //Getting List item

            ListItem listItem = list.GetItemById(2);

            //Updating List item

            listItem["First Name"] = "Hrithik";

            listItem["Last Name"] = "Roshan";

            listItem["Age"] = 37;

            listItem.Update();

            clientContext.ExecuteQuery();

            Console.WriteLine("List Item Updated Successfully");

            Console.ReadLine();

        }

    }

}