目前我有代码在运行时在 Documents 目录中创建一个文件夹:

using (var context = new Microsoft.SharePoint.Client.ClientContext(sharePointSite))
{
    context.Credentials = new Microsoft.SharePoint.Client.SharePointOnlineCredentials(user, password);

    Web web = context.Web;

    Microsoft.SharePoint.Client.List docs = web.Lists.GetByTitle(<upper level folder>);
    docs.EnableFolderCreation = true;

    docs.RootFolder.Folders.Add(folderName);

    context.ExecuteQuery();

    return true;
}

我在使用此代码创建的文件夹中创建子文件夹时遇到问题。因此，如果我想在 Documents 下创建一个名为 Feb 的文件夹，就可以这样做。但是如果我想在新文件夹 Feb 下创建一个名为 Week 2 的文件夹。它不会那样做。我收到此错误:

{“列表‘Feb’在 URL 为‘https://my.sharepoint.com/sites/labels’的网站上不存在。”}

我意识到问题可能出在 docs.RootFolder.Folders.Add(folderName); 因为 Feb 不会是根文件夹，当它查找它时将抛出异常。

所以我希望有人能帮我写一些代码来将子文件夹添加到已经创建的文件夹中。我正在使用 Visual Stuidos 2010，无法升级到 2012，否则我会升级。我有 2013 Microsoft.Sharepoint.Client dll，可以在 VS 2010 中引用。

最佳答案

如何在 SharePoint 2010/2013 中通过 CSOM 创建文件夹(包括嵌套文件夹)

/// <summary>
/// Create Folder client object
/// </summary>
/// <param name="web"></param>
/// <param name="listTitle"></param>
/// <param name="fullFolderUrl"></param>
/// <returns></returns>
public static Folder CreateFolder(Web web, string listTitle, string fullFolderUrl)
{
    if (string.IsNullOrEmpty(fullFolderUrl))
        throw new ArgumentNullException("fullFolderUrl");
    var list = web.Lists.GetByTitle(listTitle);
    return CreateFolderInternal(web, list.RootFolder, fullFolderUrl);
}

private static Folder CreateFolderInternal(Web web, Folder parentFolder, string fullFolderUrl)
{
    var folderUrls = fullFolderUrl.Split(new char[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
    string folderUrl = folderUrls[0];
    var curFolder = parentFolder.Folders.Add(folderUrl);
    web.Context.Load(curFolder);
    web.Context.ExecuteQuery();

    if (folderUrls.Length > 1)
    {
        var subFolderUrl = string.Join("/", folderUrls, 1, folderUrls.Length - 1);
        return CreateFolderInternal(web, curFolder, subFolderUrl);
    }
    return curFolder;
}

用法

 using (var ctx = new ClientContext("https://contoso.onmicrosoft.com/"))
 {
       ctx.Credentials = new Microsoft.SharePoint.Client.SharePointOnlineCredentials("username", "password");
       var folder = CreateFolder(ctx.Web, "Shared Documents", "FolderA/SubFolderA/SubSubFolderA");
 }

如何获取文件夹客户端对象

public static Folder GetFolder(Web web, string fullFolderUrl)
{
    if (string.IsNullOrEmpty(fullFolderUrl))
        throw new ArgumentNullException("fullFolderUrl");

    if (!web.IsPropertyAvailable("ServerRelativeUrl"))
    {
        web.Context.Load(web,w => w.ServerRelativeUrl);
        web.Context.ExecuteQuery();
    }
    var folder = web.GetFolderByServerRelativeUrl(web.ServerRelativeUrl + fullFolderUrl);
    web.Context.Load(folder);
    web.Context.ExecuteQuery();
    return folder;
}

用法

var existingFolder = GetFolder(ctx.Web, "Shared Documents/FolderA/SubFolderA/SubSubFolderA");

关于c# - 在 SharePoint 2013 中以编程方式创建文件夹，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/22001237/