属性或字段"ServerRelativeUrl"尚未初始化.尚未请求或尚未执行请求.可能需要明确要求. [英] The property or field 'ServerRelativeUrl' has not been initialized. It has not been requested or the request has not been executed. It may need to be explicitly requested.

问题描述

我正在尝试将< g class ="gr_gr_109 gr-alert gr_tiny gr_spell gr_inline_cards gr_disable_anim_appear ContextualSpelling multiReplace"从Sharepoint在线复制到SharePoint Foundation 2013. data-gr-id ＝"109". id ＝"109" i/g. 在代码下方编写了代码，并出现错误

此代码有问题: 

Microsoft.SharePoint.Client.File.SaveBinaryDirect(Foundationctx_img，< g class ="gr_ gr_181 gr-alert gr_spell gr_inline_cards gr_run_anim ContextualSpelling ins-del multiReplace" data-gr-id ="181" id ="181"> onpremfile</g> .ServerRelativeUrl， fileInfo.Stream，true)；

  if(！FoundationItemColl.Any(x => x.FieldValues ["FileLeafRef"].ToString()== Onlineitem ["FileLeafRef"].ToString()))
                    {
                        FileCreationInformation objFileInfo_img =新的FileCreationInformation();

                       字符串newImgTitle = Onlineitem ["FileLeafRef"].ToString();
                       字符串FileRef = Onlineitem ["FileRef"].ToString();
                        objFileInfo_img.Url = newImgTitle;
                        //var fi = new FileInfo(newImgTitle);
                        //var fileUrl = String.Format("{0}/{1}"，list.RootFolder.ServerRelativeUrl，fi.Name);

                        //objFileInfo_img.Content = System.Text.Encoding.ASCII.GetBytes(newImgTitle);
                        //objFileInfo_img.Content = System.Text.Encoding.ASCII.GetBytes(FileRef);

                        Microsoft.SharePoint.Client.File onlinefile = Onlineitem.File;
                        onlineCtx.Load(onlinefile);
                        //onlineCtx.ExecuteQuery();

                        ListItem foundationImageItem = onlinefile.ListItemAllFields;
                        //Foundationctx_img.Load(foundationImageItem);                      

                        Microsoft.SharePoint.Client.File onpremfile = foundationImageItem.File;
                        onlineCtx.ExecuteQuery();
                        FileInformation fileInfo = Microsoft.SharePoint.Client.File.OpenBinaryDirect((ClientContext)Onlineitem.Context，onlinefile.ServerRelativeUrl);
                        onlineCtx.ExecuteQuery();
                        Foundationctx_img.ExecuteQuery();
                        
                        Microsoft.SharePoint.Client.File.SaveBinaryDirect(Foundationctx_img，onpremfile.ServerRelativeUrl，fileInfo.Stream，true)；

                        //Microsoft.SharePoint.Client.File文件= list.RootFolder.Files.Add(objFileInfo_img);
                        //UpdateFoundationImagesProperties(foundationImageItem_L，Onlineitem);
                        //foundationImageItem ["FileLeafRef"] = Onlineitem ["FileLeafRef"];
                        //foundationImageItem.Update();
                        //foundationImageItem.Context.ExecuteQuery();
                        

                    }

< g class =" gr_ gr_209 gr-alert gr_gramm gr_inline_cards gr_run_anim Style multiReplace" data-gr-id ＝"209". id ="209">注:</g>使用注释的代码< g class ="gr_ gr_231 gr-alert gr_tiny gr_spell gr_inline_cards gr_run_anim ContextualSpelling multiReplace"； data-gr-id ＝"231". id ＝"231" i/g.能够复制图像，但图像为空白.

感谢帮助-谢谢< g class =" gr_ gr_314 gr-alert gr_gramm gr_inline_cards gr_run_anim样式multiReplace" data-gr-id ＝"314". id ="314">您！/g  

解决方案

以下是代码段供您参考:

字符串siteCollectionUrl ="https://Tenantname.sharepoint.com/sites/sitename/";
            字符串userName ="[e-mail]";
            字符串密码="xxxxxx"；

            //命名空间:Microsoft.SharePoint.Client
            ClientContext ctxOnline =新的ClientContext(siteCollectionUrl);

            //命名空间:System.Security
            SecureString secureString = new SecureString();
            password.ToList().ForEach(secureString.AppendChar);

            //命名空间:Microsoft.SharePoint.Client
            ctxOnline.Credentials =新的SharePointOnlineCredentials(userName，secureString);

            //命名空间:Microsoft.SharePoint.Client
            网站site = ctxOnline.Site;

            ctxOnline.Load(site);
            ctxOnline.ExecuteQuery();

            列表列表= ctxOnline.Web.Lists.GetByTitle("Documents");
            ListItem项目= list.GetItemById(3);

            ctxOnline.Load(list);
            ctxOnline.Load(item，i => i.File);
            ctxOnline.ExecuteQuery();

            var fileRef = item.File.ServerRelativeUrl;
            FileInformation fileInfo = Microsoft.SharePoint.Client.File.OpenBinaryDirect(ctxOnline，fileRef);

            使用(ClientContext ctxpremise = new ClientContext("http://sp/sites/dev/"))
            {

                //假设该网站有一个名为"doc2"的库.
                var formLib = ctxpremise.Web.Lists.GetByTitle("doc2");
                ctxpremise.Load(formLib.RootFolder);
                ctxpremise.ExecuteQuery();
                Microsoft.SharePoint.Client.File.SaveBinaryDirect(ctxpremise，formLib.RootFolder.ServerRelativeUrl +"/test.png"，fileInfo.Stream，true)；
                ctxpremise.ExecuteQuery();

            } 

在File.SaveBinaryDirect方法中，如果要使用RootFolder.ServerRelativeUrl，请在本地ClientContext中加载库根文件夹对象.

这是从SharePoint Online Documents库下载Cpature.png到本地doc 2库的结果:

谢谢

最好的问候

I am trying to copy images from Sharepoint online to SharePoint Foundation 2013 for that <g class="gr_ gr_109 gr-alert gr_tiny gr_spell gr_inline_cards gr_disable_anim_appear ContextualSpelling multiReplace" data-gr-id="109" id="109">i</g> have written code below code and getting error 

This code having an issue : 

Microsoft.SharePoint.Client.File.SaveBinaryDirect(Foundationctx_img, <g class="gr_ gr_181 gr-alert gr_spell gr_inline_cards gr_run_anim ContextualSpelling ins-del multiReplace" data-gr-id="181" id="181">onpremfile</g>.ServerRelativeUrl, fileInfo.Stream, true);

 if (!FoundationItemColl.Any(x => x.FieldValues["FileLeafRef"].ToString() == Onlineitem["FileLeafRef"].ToString()))
                    {
                        FileCreationInformation objFileInfo_img = new FileCreationInformation();

                        string newImgTitle = Onlineitem["FileLeafRef"].ToString();
                        string FileRef = Onlineitem["FileRef"].ToString();
                        objFileInfo_img.Url = newImgTitle;
                        //var fi = new FileInfo(newImgTitle);
                        //var fileUrl = String.Format("{0}/{1}", list.RootFolder.ServerRelativeUrl, fi.Name);

                        // objFileInfo_img.Content = System.Text.Encoding.ASCII.GetBytes(newImgTitle);
                        //objFileInfo_img.Content = System.Text.Encoding.ASCII.GetBytes(FileRef);

                        Microsoft.SharePoint.Client.File onlinefile = Onlineitem.File;
                        onlineCtx.Load(onlinefile);
                        //onlineCtx.ExecuteQuery();

                        ListItem foundationImageItem = onlinefile.ListItemAllFields;
                        //Foundationctx_img.Load(foundationImageItem);                      

                        Microsoft.SharePoint.Client.File onpremfile = foundationImageItem.File;
                        onlineCtx.ExecuteQuery();
                        FileInformation fileInfo = Microsoft.SharePoint.Client.File.OpenBinaryDirect((ClientContext)Onlineitem.Context, onlinefile.ServerRelativeUrl);
                        onlineCtx.ExecuteQuery();
                        Foundationctx_img.ExecuteQuery();
                        
                        Microsoft.SharePoint.Client.File.SaveBinaryDirect(Foundationctx_img, onpremfile.ServerRelativeUrl, fileInfo.Stream, true);

                        //Microsoft.SharePoint.Client.File file = list.RootFolder.Files.Add(objFileInfo_img);
                        //UpdateFoundationImagesProperties(foundationImageItem_L, Onlineitem);
                        //foundationImageItem["FileLeafRef"] = Onlineitem["FileLeafRef"];
                        //foundationImageItem.Update();
                        //foundationImageItem.Context.ExecuteQuery();
                        

                    }

<g class="gr_ gr_209 gr-alert gr_gramm gr_inline_cards gr_run_anim Style multiReplace" data-gr-id="209" id="209">Note :</g> using commented code <g class="gr_ gr_231 gr-alert gr_tiny gr_spell gr_inline_cards gr_run_anim ContextualSpelling multiReplace" data-gr-id="231" id="231">i</g> was able to copy images but images were blank.

Help appreciated- Thank <g class="gr_ gr_314 gr-alert gr_gramm gr_inline_cards gr_run_anim Style multiReplace" data-gr-id="314" id="314">you !</g>  

解决方案

Hi,

Here is a code snippet for your reference:

            string siteCollectionUrl = "https://Tenantname.sharepoint.com/sites/sitename/";
            string userName = "[e-mail]";
            string password = "xxxxx";

            // Namespace: Microsoft.SharePoint.Client  
            ClientContext ctxOnline = new ClientContext(siteCollectionUrl);

            // Namespace: System.Security
            SecureString secureString = new SecureString();
            password.ToList().ForEach(secureString.AppendChar);

            // Namespace: Microsoft.SharePoint.Client  
            ctxOnline.Credentials = new SharePointOnlineCredentials(userName, secureString);

            // Namespace: Microsoft.SharePoint.Client  
            Site site = ctxOnline.Site;

            ctxOnline.Load(site);
            ctxOnline.ExecuteQuery();

            List list = ctxOnline.Web.Lists.GetByTitle("Documents");
            ListItem item = list.GetItemById(3);

            ctxOnline.Load(list);
            ctxOnline.Load(item, i => i.File);
            ctxOnline.ExecuteQuery();

            var fileRef = item.File.ServerRelativeUrl;
            FileInformation fileInfo = Microsoft.SharePoint.Client.File.OpenBinaryDirect(ctxOnline, fileRef);

            using (ClientContext ctxpremise = new ClientContext("http://sp/sites/dev/"))
            {

                // Assume that the web site has a library named "doc2".   
                var formLib = ctxpremise.Web.Lists.GetByTitle("doc2");
                ctxpremise.Load(formLib.RootFolder);
                ctxpremise.ExecuteQuery();             
                Microsoft.SharePoint.Client.File.SaveBinaryDirect(ctxpremise, formLib.RootFolder.ServerRelativeUrl+"/test.png", fileInfo.Stream, true);
                ctxpremise.ExecuteQuery();

            }

In File.SaveBinaryDirect method, if want to use RootFolder.ServerRelativeUrl, please load library rootfolder object in On-Premise ClientContext.

Here is the result download Cpature.png from SharePoint Online Documents library to On-Premise doc 2 library:

Thanks

Best Regards

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