C# · 12月 25, 2021

如何使用c#在Sharepoint库子文件夹中上传文件?

我需要在sharepoint库中使用c#console app上传文件.我设法只将它上传到父库.但要求是将其上传到其子文件夹.

所以这是文件夹结构:

根文件夹
– 子文件夹1
—子文件夹2
—-子文件夹3

我需要将它上传到子文件夹3.现在,我只能上传根文件夹.
当我尝试在GetByTitle方法中输入子文件夹3时会抛出错误,但是当它是根文件夹时,它会成功上载.

这是我的代码.

using (ClientContext clientContext = new ClientContext(siteURL)){ clientContext.Credentials = new System.Net.NetworkCredential(@”username”,”password”,”domain”); var web = clientContext.Web; // Create the new file var newFile = new FileCreationInformation(); newFile.Content = System.IO.File.ReadAllBytes(@”C:\filepath\test.xlsx”); newFile.Overwrite = true; newFile.Url = “Test Upload.xlsx”; List list = web.Lists.GetByTitle(“Service Oriented Architecture (SOA)”); clientContext.Load(list); clientContext.ExecuteQuery(); clientContext.Load(list.RootFolder); clientContext.Load(list.RootFolder.Folders); clientContext.ExecuteQuery(); foreach (Folder SubFolder in list.RootFolder.Folders) { if (SubFolder.Name.Equals(“07 – SOA Environment”)) { //What’s next? } }}解决方法 使用CSOM上传文件时,如何指定子文件夹有多种选择

关于下面提供的解决方案有两个假设:

>库名称(url)是Documents,具有以下文件夹结构:
文件夹/子文件夹/子子文件夹/子子文件夹/
>文件夹结构已存在

使用FileCreationInformation.Url属性

使用FileCreationInformation.Url property为上载的文件指定文件夹URL.

以下示例演示如何指定相对url(示例的略微修改版本,主要区别在于指定FileCreationInformation.Url)

var uploadFilePath = @”c:\tmp\SharePoint User Guide.docx”; var fileCreationInfo = new FileCreationInformation{ Content = System.IO.File.ReadAllBytes(uploadFilePath),Overwrite = true,Url = Path.Combine(“Documents/Folder/Sub Folder/Sub Sub Folder/Sub Sub Sub Folder/”,Path.GetFileName(uploadFilePath)) }; var list = context.Web.Lists.GetByTitle(“Root Folder”); var uploadFile = list.RootFolder.Files.Add(fileCreationInfo); context.Load(uploadFile); context.ExecuteQuery();

使用Web.GetFolderByServerRelativeUrl方法

使用Web.GetFolderByServerRelativeUrl method检索必须上载文件的文件夹:

public static void UploadFile(ClientContext context,string uploadFolderUrl,string uploadFilePath){ var fileCreationInfo = new FileCreationInformation { Content = System.IO.File.ReadAllBytes(uploadFilePath),Url = Path.GetFileName(uploadFilePath) }; var targetFolder = context.Web.GetFolderByServerRelativeUrl(uploadFolderUrl); var uploadFile = targetFolder.Files.Add(fileCreationInfo); context.Load(uploadFile); context.ExecuteQuery();}

用法

using (var ctx = new ClientContext(webUri)){ ctx.Credentials = credentials; UploadFile(ctx,”Documents/Folder/Sub Folder/Sub Sub Folder/Sub Sub Sub Folder”,filePath); }