Sharepoint回收站文件还原,还原其他用户删除的文件

需求：有两个site collection admin权限的用户user1和user2,user2删除OtherUserDelete.txt文件，user1进行还原,其中user1的回收站里面有两个文件CurrentUserDelete.txt(user1删除)和OtherUserDelete.txt(user2删除)，这里只考虑first stage一级回收站的情况

dll引用：主要是调用Microsoft.SharepointOnline.CSOM中的Client api

问题：回收站分为两个，一个是End User的只有自己删除的文件，另外一个是site collection级别的回收站，但是Web.Recyclebin里面只能得到当前用户删除的文件，如下面代码

using (ClientContext clientContext = new ClientContext("https://youserver"))
                {
                    string pass = "yourpassword";
                    var securepassword = new SecureString();
                    foreach (char c in pass.ToCharArray())
                    {
                        securepassword.AppendChar(c);
                    }
                    clientContext.Credentials = new SharePointOnlineCredentials("[email protected]", securepassword);
                    var deletedItems = new List();
                    try
                    {
                        RecycleBinItem deletedItem = null;
                        Web web = clientContext.Site.RootWeb;
                        clientContext.Load(web);
                        clientContext.Load(web.RecycleBin, items => items.Include(
                            oItem => oItem.Title,
                            oItem => oItem.Id,
                            oItem => oItem.Author,
                            oItem => oItem.DeletedBy,
                            oItem => oItem.DirName,
                            oItem => oItem.DeletedDate
                            ));
                        clientContext.ExecuteQuery();                      
                        var recycleBinItems = web.RecycleBin;
                        for (int i = recycleBinItems.Count; i > 0; i--)
                        {
                            RecycleBinItem item = recycleBinItems[i - 1];
                            deletedItems.Add(item);
                        }
                    }
                    catch (Exception e)
                    {
                        Console.WriteLine(e.Message);
                    }

                }

1.通过Web.GetRecycleBinItemsByQueryInfo(RecycleBinQueryInformation query)拿到回收站所有的文件,其中属性 ShowOnlyMyItems要设置为false才能拿到其他用户删除的文件

RecycleBinQueryInformation queryInformation = new RecycleBinQueryInformation
                        {
                            ShowOnlyMyItems = false
                        };
                        var recycleBinItems = web.GetRecycleBinItemsByQueryInfo(queryInformation);
                        clientContext.Load(recycleBinItems, items => items.Include(
                            oItem => oItem.Title,
                            oItem => oItem.Id,
                            oItem => oItem.Author,
                            oItem => oItem.DeletedBy,
                            oItem => oItem.DirName,
                            oItem => oItem.DeletedDate,
                            oItem => oItem.DirNamePath
                            ));
                        clientContext.ExecuteQuery();
foreach (RecycleBinItem item in recycleBinItems)
                        {
                            string guid = item.Id.ToString();
                            //你想要还原的文件guid
                            if (item.Id.ToString().Equals("424d868f-f08a-4f56-809b-37466d8c2f79"))
                            {
                                deletedItem = item;
                                item.Restore();
                                clientContext.ExecuteQuery();
                                break;
                            }
                        }

2.上面方法成功拿到user2删除的文件，但是还原的时候出问题了，报错：Value does not fall within the expected range.

3.解决办法是通过RecycleBinItemCollection.GetById(Guid id)方法拿到想要还原的user2删除的文件RecycleBinItem，然后进行还原就成功还原了

RecycleBinItem deletedItem = null;
                        Web web = clientContext.Web;                       
                        RecycleBinQueryInformation queryInformation = new RecycleBinQueryInformation
                        {
                            ShowOnlyMyItems = false
                        };
                        var recycleBinItems = web.GetRecycleBinItemsByQueryInfo(queryInformation);
                        clientContext.Load(recycleBinItems, items => items.Include(
                            oItem => oItem.Title,
                            oItem => oItem.Id,
                            oItem => oItem.Author,
                            oItem => oItem.DeletedBy,
                            oItem => oItem.DirName,
                            oItem => oItem.DeletedDate,
                            oItem => oItem.DirNamePath
                            ));
                        clientContext.ExecuteQuery();                        
                        deletedItem =recycleBinItems.GetById(new Guid("yourfileid"));
                        clientContext.Load(deletedItem, w => w.DirName);                        
                        deletedItem.Restore();
                        clientContext.ExecuteQuery();