Get Group Users Using CSOM

In this blog, we will learn about how to get the users from the SharePoint Group using CSOM

The following example returns all the users from the given SharePoint Site Group using SharePoint Managed Client Side Object Model.

 

After creating a console application project in Visual Studio solution, add the following assembly references to the project.

Microsoft.SharePoint.Client

Microsoft.SharePoint.Client.Runtime

using Microsoft.SharePoint.Client;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Text;

namespace GetGroupUsers
{
    class Program
    {
        static void Main(string[] args)
        {
            //Get Site Url fro user
            Console.Write("Enter Site URL: ");
            string strURL = Console.ReadLine();

            //Get Username from user in the format of (Domain/Login ID)
            Console.Write("Enter UserName (domain/userid): ");
            string strUserName = Console.ReadLine();

            Console.Write("Enter your password: ");
            string pass = getPassword();
            Console.WriteLine();
            RETRY_GROUP:
            Console.Write("Enter Group Name: ");
            string groupName = Console.ReadLine();
            Console.WriteLine();

            try
            {
                ClientContext ctx = new ClientContext(strURL);
                ctx.Credentials = new NetworkCredential(strUserName, pass);
                Web web = ctx.Web;

                Group group = web.SiteGroups.GetByName(groupName);

                //Parameters to receive response from the server
                ctx.Load(web, w => w.Title);
                ctx.Load(group, grp => grp.Title, grp => grp.Users, grp => grp.Owner);
                ctx.ExecuteQuery();

                Console.WriteLine("Groups Name: " + group.Title);
                Console.WriteLine("Users Count: " + group.Users.Count);
                Console.WriteLine("Group Owner: " + group.Owner.Title);
                Console.WriteLine("Users:");
                foreach(User usr in group.Users)
                {
                    Console.WriteLine(usr.Title);
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine("Error: " + ex.Message);
                Console.Write("Do you want to continue (y / n):");
                ConsoleKeyInfo boolContinue = Console.ReadKey();
                Console.WriteLine();
                if (boolContinue.KeyChar == 'y')
                    goto RETRY_GROUP;
                else
                    Console.Write("Enter to Exit.");
            }

            Console.Read();
        }

        private static string getPassword()
        {
            ConsoleKeyInfo key;
            string pass = "";
            do
            {
                key = Console.ReadKey(true);
                // Backspace Should Not Work
                if (key.Key != ConsoleKey.Backspace && key.Key != ConsoleKey.Enter)
                {
                    pass += key.KeyChar;
                    Console.Write("*");
                }
                else
                {
                    if (key.Key == ConsoleKey.Backspace && pass.Length > 0)
                    {
                        pass = pass.Substring(0, (pass.Length - 1));
                        Console.Write("\b \b");
                    }
                }
            }
            // Stops Receving Keys Once Enter is Pressed
            while (key.Key != ConsoleKey.Enter);
            return pass;
        }
    }
}

Supported Versions: 

SharePoint 2013 + SharePoint Online