Sharepoint 2013 如何使用CSOM在SharePoint 2013 ListItemCollection中查找损坏的文件

我有一个CSOM程序，可以将数百个PDF文件传输到SharePoint 2013库中。偶尔会有一个传输的文件被损坏，无法打开。源文件良好，同一文件在传输到其他库后可以打开，但在一个随机库中，它将被损坏。 我想在库中循环，找到损坏的文件并删除它们，但是如何使用CSOM判断文件是否损坏？我尝试循环使用File.OpenBinaryStream（），但在损坏的文件上成功了。下面是读取库并循环文件的代码。如有任何建议，将不胜感激

                    using (ClientContext destContext = new ClientContext(clientSite.Value))
                {
                    destContext.AuthenticationMode = ClientAuthenticationMode.FormsAuthentication;
                    destContext.FormsAuthenticationLoginInfo = new FormsAuthenticationLoginInfo(ClientSiteUsername, ClientSitePassword);

                    // get the new list
                    Web destWeb = destContext.Web;
                    ListCollection lists = destWeb.Lists;
                    List selectedList = lists.GetByTitle(clientLibraryName);
                    destContext.Load(lists);
                    destContext.Load(selectedList);
                    ListItemCollection clientCurrentItemsList = selectedList.GetItems(CamlQuery.CreateAllItemsQuery());

                    destContext.Load(clientCurrentItemsList,
                                       eachItem => eachItem.Include(
                                       item => item,
                                       item => item["ID"],
                                       item => item["FileLeafRef"]));

                    try
                    {
                        destContext.ExecuteQuery();
                    }
                    catch (Exception ex)
                    {
                        log.Warn(String.Format("Error in VerifyClientDocuments. Could not read client library: {0}", clientSite.Value), ex);
                        continue;
                    }

                    foreach (ListItem item in clientCurrentItemsList)
                    {
                        try
                        {
                            item.File.OpenBinaryStream();
                        }
                        catch (Exception ex)
                        {
                            var val = ex.Message;
                            //delete here
                        }

                    }
                }

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有效的方法是根据预期的文件大小检查新文件的大小。损坏的文件实际上报告为0字节大小，因此我删除了这些文件，然后在以后重新添加

                                for (var counter = clientCurrentItemsList.Count; counter > 0; counter--)
                                {

                                var clientFileSize = clientCurrentItemsList[counter - 1].FieldValues.
                                    Where(x => x.Key == "File_x0020_Size").FirstOrDefault().Value.ToString();
                                var fileName = clientCurrentItemsList[counter - 1].FieldValues.
                                    Where(x => x.Key == "FileLeafRef").FirstOrDefault().Value.ToString();
                                var serverFileSize = approvedDocumentList.Where(x => x.FieldValues["FileLeafRef"].ToString() == 
                                    fileName).FirstOrDefault().FieldValues["File_x0020_Size"].ToString();

                                if (clientFileSize != serverFileSize)
                                {
                                    clientCurrentItemsList[counter - 1].DeleteObject();
                                    destContext.ExecuteQuery();
                                    log.Info(String.Format("File [{0}] deleted from {1} File type {2} - Reason: Client file was corrupt",
                                        fileName, clientSiteURL, documentType.ToString()));
                                }
                            }

---

有效的方法是根据预期的文件大小检查新文件的大小。损坏的文件实际上报告为0字节大小，因此我删除了这些文件，然后在以后重新添加

                                for (var counter = clientCurrentItemsList.Count; counter > 0; counter--)
                                {

                                var clientFileSize = clientCurrentItemsList[counter - 1].FieldValues.
                                    Where(x => x.Key == "File_x0020_Size").FirstOrDefault().Value.ToString();
                                var fileName = clientCurrentItemsList[counter - 1].FieldValues.
                                    Where(x => x.Key == "FileLeafRef").FirstOrDefault().Value.ToString();
                                var serverFileSize = approvedDocumentList.Where(x => x.FieldValues["FileLeafRef"].ToString() == 
                                    fileName).FirstOrDefault().FieldValues["File_x0020_Size"].ToString();

                                if (clientFileSize != serverFileSize)
                                {
                                    clientCurrentItemsList[counter - 1].DeleteObject();
                                    destContext.ExecuteQuery();
                                    log.Info(String.Format("File [{0}] deleted from {1} File type {2} - Reason: Client file was corrupt",
                                        fileName, clientSiteURL, documentType.ToString()));
                                }
                            }