The following example returns all the Groups available in Site using SharePoint's 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
  1. using Microsoft.SharePoint.Client;
  2. using System;
  3. using System.Collections.Generic;
  4. using System.Linq;
  5. using System.Net;
  6. using System.Text;
  8. namespace GetSiteGroups
  9. {
  10. class Program
  11. {
  12. static void Main(string[] args)
  13. {
  14. //Get Site Url fro user
  15. Console.Write("Enter Site URL: ");
  16. string strURL = Console.ReadLine();
  18. //Get Username from user in the format of (Domain/Login ID)
  19. Console.Write("Enter UserName (domain/userid): ");
  20. string strUserName = Console.ReadLine();
  22. Console.Write("Enter your password: ");
  23. string pass = getPassword();
  24. Console.WriteLine();
  26. ClientContext ctx = new ClientContext(strURL);
  27. ctx.Credentials = new NetworkCredential(strUserName, pass);
  28. Web web = ctx.Web;
  29. //Parameters to receive response from the server
  30. //SiteGroups property should be passed in Load method to get the collection of groups
  31. ctx.Load(web, w => w.Title, w => w.SiteGroups);
  32. ctx.ExecuteQuery();
  34. GroupCollection groups = web.SiteGroups;
  36. Console.WriteLine("Groups associated to the site: " + web.Title);
  37. Console.WriteLine("Groups Count: " + groups.Count.ToString());
  38. foreach(Group grp in groups)
  39. {
  40. Console.WriteLine(grp.Title);
  41. }
  42. Console.Read();
  43. }
  45. private static string getPassword()
  46. {
  47. ConsoleKeyInfo key;
  48. string pass = "";
  49. do
  50. {
  51. key = Console.ReadKey(true);
  52. // Backspace Should Not Work
  53. if (key.Key != ConsoleKey.Backspace && key.Key != ConsoleKey.Enter)
  54. {
  55. pass += key.KeyChar;
  56. Console.Write("*");
  57. }
  58. else
  59. {
  60. if (key.Key == ConsoleKey.Backspace && pass.Length > 0)
  61. {
  62. pass = pass.Substring(0, (pass.Length - 1));
  63. Console.Write("\b \b");
  64. }
  65. }
  66. }
  67. // Stops Receving Keys Once Enter is Pressed
  68. while (key.Key != ConsoleKey.Enter);
  69. return pass;
  70. }
  71. }
  72. }