c# - 在 SharePoint 2013 中以编程方式创建文件夹

Question

Documents目前我有代码在运行时在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。所以就像如果我想创建一个Feb在Documentsthis 下调用的文件夹就会这样做。Week 2但是如果我想在新文件夹下创建一个文件夹Feb。它不会那样做。我收到此错误：

{"List 'Feb' does not exist at site with URL 'https://my.sharepoint.com/sites/labels'."}

我意识到问题可能是docs.RootFolder.Folders.Add(folderName);因为Feb它不是根文件夹，当它查找它时会抛出异常。

所以我希望有人可以用一些代码来帮助我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，否则无法升级到 2012。我有Microsoft.Sharepoint.Client可以在 VS 2010 中引用的 2013 dll。

Answer 1

How to create Folder (including nested) via CSOM in SharePoint 2010/2013

/// <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;
}

Usage

 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");
 }

How to get Folder client object

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;
}

Usage

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

Answer 2

您可以像这样创建文件夹：

Microsoft.SharePoint.Client.List docs = web.Lists.TryGetList("upper level folder");
FolderCollection folderColl = docs.RootFolder.SubFolders;
Folder newFolder = folderColl.Add("upper level folder/Feb/Week 2");

Answer 3

要在 QuickLinks 列表中的已知特定节点之后添加文件夹，请尝试以下操作：

ClientContext context = new ClientContext("https://companySP.com/sites/RootSite");
NetworkCredential _myCredentials = new NetworkCredential(userName, password);

context.AuthenticationMode = ClientAuthenticationMode.Default;
context.Credentials = _myCredentials;
context.Load(context.Web, w => w.Title);
context.ExecuteQuery();
Console.WriteLine($"Connected to {context.Web.Title}");
/*  Connection made to Sharepoint Site  */

NavigationNodeCollection ql = context.Web.Navigation.QuickLaunch;
context.Load(ql);
context.ExecuteQuery();
Console.WriteLine("Current nodes:\n");
NavigationNode addAfterNode = null;
foreach (NavigationNode navNode in ql)
{
   Console.WriteLine(navNode.Title + " - " + navNode.Url);
   if (navNode.Title == "Existing List Name In Quicklinks")
   {
      addAfterNode = navNode;
      break;
   }
}
/*  Navigation Node Found to Add After in Quick Links  */

NavigationNodeCreationInformation nnci = new NavigationNodeCreationInformation();
nnci.Title = "New List Title";
nnci.Url = "URL of New List Title";

nnci.PreviousNode = addAfterNode;  // Sets the previous node to add after
ql.Add(nnci);
 
context.Load(ql);
context.ExecuteQuery();

context.Web.Update();