using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.SharePoint.Client;
namespace COM
{
class Program
{
static void Main(string[] args)
{
string siteUrl = "http://serverName:46563/sites/MMS-CTH/";
ClientContext clientContext = new ClientContext(siteUrl);
Web web = clientContext.Web;
List list = web.Lists.GetByTitle("CustomList");
Field field = list.Fields.GetByTitle("Title");
field.ReadOnlyField = true;
field.Update();
clientContext.Load(field);
clientContext.ExecuteQuery();
Console.WriteLine(field.Title + " is updated successfully");
Console.ReadLine();
}
}
}