我需要通过文档库的内容进行递归,并使用MVC在网页上显示它们。但是,在尝试运行我的代码时出现以下错误:“集合尚未初始化。尚未请求或请求尚未执行。可能需要明确请求。”
任何帮助将不胜感激!
这是我的代码:
public class HomeController : Controller
{
public ActionResult Index()
{
DefaultModel model = new DefaultModel();
using (ClientContext context = new ClientContext("MySPSite"))
{
List list = context.Web.Lists.GetByTitle("DocumentLibrary");
Folder rootFolder = list.RootFolder;
IEnumerable<SharePointItemBaseModel> items = ProcessFolder(rootFolder);
model.items.AddRange(items);
}
return View(model);
}
public IEnumerable<SharePointItemBaseModel> ProcessFolder(Folder folder)
{
List<SharePointItemBaseModel> listItems = new List<SharePointItemBaseModel>();
foreach (Folder childFolder in folder.Folders)
{
FolderModel folderModel = new FolderModel();
IEnumerable<SharePointItemBaseModel> childFolders = ProcessFolder(childFolder,context);
folderModel.Items.AddRange(childFolders);
listItems.Add(folderModel);
}
foreach (Microsoft.SharePoint.Client.File file in folder.Files)
{
DocumentModel documentModel = new DocumentModel();
documentModel.Name = file.Title;
documentModel.modifiedBy = file.ModifiedBy.ToString();
listItems.Add(documentModel);
}
return listItems;
}
public ActionResult About()
{
return View();
}
}
}
答案 0 :(得分:2)
我自己设法解决了这个问题。
在我的递归方法中,我刚使用了
context.Load(folder.Folders);
和
context.Load(folder.Files);
这个初始化的集合允许我在我的foreach循环中使用它