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

namespace spknowledge.csomsamples.GetListAuthor
{

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using System;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.SharePoint;

namespace spknowledge.somexamples.GetListFolder
{
    class Program
    {

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function getcheckoutStatus(listtitle, itemid) {
            var clientContext = SP.ClientContext.get_current();
            if (clientContext != undefined && clientContext != null) {
                var webSite = clientContext.get_web();
                this.list = webSite.get_lists().getByTitle(listtitle);
                this.item = list.getItemById(itemid);
                this.file = this.item.get_file();
                clientContext.load(this.file);                          
                clientContext.executeQueryAsync(Function.createDelegate(this, this.OnLoadSuccess), Function.createDelegate(this, this.OnLoadFailed));
                }

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//CSOM Assembly version - 16.1.4727.1200
//using Microsoft.SharePoint.Client

//GetFirstStageRecyclebinItems(credentials, weburl);

  private static void GetFirstStageRecyclebinItems(SharePointOnlineCredentials credentials, string weburl)
  {
      RecycleBinItemCollection recyclebinItems = null;
      using (ClientContext ctx = new ClientContext(weburl))
      {

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//using Microsoft.SharePoint.Client;
//using Microsoft.Online.SharePoint.TenantAdministration;

//string weburl = "https://site-admin.sharepoint.com";
//GetSiteCollections(credentials, weburl);

//This method returns the count of Site Collections available in the tenant
//Also returns thr url of all site collections
private static void GetSiteCollections(SharePointOnlineCredentials credentials, string weburl)
{

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//using Microsoft.SharePoint.Client;
//using Microsoft.Online.SharePoint.TenantAdministration;

//string weburl = "https://site-admin.sharepoint.com";
//GetSite(credentials, weburl);

//This method returns the site collection object based on the url.
//shows the count of all subwebs available with in SharePoint online Site Collection
//Microsoft.Online.SharePoint.TenantAdministration.SiteProperties.WebsCount  property    
private static void GetSite(SharePointOnlineCredentials credentials, string weburl)

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//using Microsoft.SharePoint.Client;
//GetHiddenLists(credentials, weburl);

//This method returns the hidden lists from the web           
private static void GetHiddenLists(ICredentials credentials, string weburl)
{
    using (ClientContext ctx = new ClientContext(weburl))
    {
        ctx.Credentials = credentials;
        Web oweb = ctx.Web;

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//using Microsoft.SharePoint.Client;
//using System.Net
//GetNonhiddenLists(credentials, weburl);

//This method returns the lists from the web, which are visible to users
private static void GetNonhiddenLists(ICredentials credentials, string weburl)
{
    using (ClientContext ctx = new ClientContext(weburl))
    {
        ctx.Credentials = credentials;

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//using Microsoft.SharePoint.Client;
//using System.Net
//GetAllLists(credentials, weburl);

//This method returns all the lists and libraries from SharePoint website
private static void GetAllLists(ICredentials credentials, string weburl)
{
    using (ClientContext ctx = new ClientContext(weburl))
    {
        ctx.Credentials = credentials;

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//CSOM Assembly version - 16.1.4727.1200
//using Microsoft.SharePoint.Client;
//using System.Net
//GetItemChanges(credentials, weburl, listtitle, itemid);

//This method returns all the changes (add, update & delete) happened to the list item
private static void GetItemChanges(ICredentials credentials, string weburl, string listTitle, int itemid)
{
    using (ClientContext ctx = new ClientContext(weburl))
    {