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)
{
// siteURL is the string that contains the site URL
string siteUrl = "http://serverName:50000/sites/Testing";
// ClientContext object is used to get the context for the SharePoint objects
ClientContext clientContext = new ClientContext(siteUrl);
Web web = clientContext.Web;
User user = web.EnsureUser(@"domainName\userName");
Group testingOwnersGroup = web.SiteGroups.GetById(6);
UserCollection userCollection = testingOwnersGroup.Users;
userCollection.AddUser(user);
clientContext.Load(userCollection);
clientContext.ExecuteQuery();
}
}
}