In this blog, you will see how to get all the subsites from a site collection in SharePoint Online, using CSOM. Please refer to my previous article Connect To SharePoint 2013 Online Using CSOM With Console Application.
Code Snippet
  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Net;
  5. using System.Security;
  6. using System.Text;
  7. using System.Threading.Tasks;
  8. using Microsoft.SharePoint.Client;
  10. namespace GetAllSubsites
  11. {
  12. class Program
  13. {
  14. static void Main(string[] args)
  15. {
  16. string userName = "[email protected]";
  17. string siteURL = "https://c986.sharepoint.com/sites/Vijai";
  18. Console.WriteLine("Enter your password.");
  19. SecureString password = GetPassword();
  20. GetAllSubWebs(siteURL, userName, password);
  21. Console.ReadLine();
  23. }
  25. private static SecureString GetPassword()
  26. {
  27. ConsoleKeyInfo info;
  28. //Get the user's password as a SecureString
  29. SecureString securePassword = new SecureString();
  30. do
  31. {
  32. info = Console.ReadKey(true);
  33. if (info.Key != ConsoleKey.Enter)
  34. {
  35. securePassword.AppendChar(info.KeyChar);
  36. }
  37. }
  38. while (info.Key != ConsoleKey.Enter);
  39. return securePassword;
  40. }
  42. private static void GetAllSubWebs(string path, string userName, SecureString password)
  43. {
  44. // ClienContext - Get the context for the SharePoint Online Site
  45. using (var clientContext = new ClientContext(path))
  46. {
  47. // SharePoint Online Credentials
  48. clientContext.Credentials = new SharePointOnlineCredentials(userName, password);
  50. // Get the SharePoint web
  51. Web web = clientContext.Web;
  52. clientContext.Load(web, website => website.Webs, website => website.Title);
  54. // Execute the query to the server
  55. clientContext.ExecuteQuery();
  57. // Loop through all the webs
  58. foreach (Web subWeb in web.Webs)
  59. {
  60. // Check whether it is an app URL or not - If not then get into this block
  61. if (subWeb.Url.Contains(path))
  62. {
  63. string newpath = subWeb.Url;
  64. GetAllSubWebs(newpath, userName, password);
  65. Console.WriteLine(subWeb.Title + "-------" + subWeb.Url);
  66. }
  67. }
  68. }
  69. }
  70. }
  71. }