不包含ListItemAllFields

Question

的定義，我有以下代碼：

public void ChangeFolderPermission() 
{ 
    SP.ClientContext ctx = new SP.ClientContext("https://sharepoint.oshirowanen.com/sites/oshirodev/"); 
    ctx.Credentials = new NetworkCredential("user", "pass", "domain"); 

    SP.Principal user = ctx.Web.EnsureUser("accountName"); 
    var folder = ctx.Web.GetFolderByServerRelativeUrl("folderUrl"); 
    var roleDefinition = ctx.Site.RootWeb.RoleDefinitions.GetByType(SP.RoleType.Reader); //get Reader role 
    var roleBindings = new SP.RoleDefinitionBindingCollection(ctx) { roleDefinition }; 
    folder.ListItemAllFields.BreakRoleInheritance(true, false); //set folder unique permissions 
    folder.ListItemAllFields.RoleAssignments.Add(user, roleBindings); 
    ctx.ExecuteQuery(); 
} 

但是下面幾行：

folder.ListItemAllFields.BreakRoleInheritance(true, false); //set folder unique permissions 
folder.ListItemAllFields.RoleAssignments.Add(user, roleBindings); 

給出了這樣的錯誤消息：

'Microsoft.SharePoint.Client.Folder' does not contain a definition for 'ListItemAllFields' and no extension method 'ListItemAllFields' accepting a first argument of type 'Microsoft.SharePoint.Client.Folder' could be found (are you missing a using directive or an assembly reference?) 

我有以下項目參考

Microsoft.SharePoint.Client 
microsoft.SharePoint.Client.Runtime 

我有以下使用指令

using SP = Microsoft.SharePoint.Client; 

任何想法，爲什麼我收到此錯誤？

該應用程序是一個從桌面環境運行的winform。

Answer 1

這是因爲SharePoint 2010的文件夾API沒有「ListItemAllFields」屬性 - 它是在2013年

的可能重複說：field or property \"ListItemAllFields\" does not exist exception