遠程服務器返回錯誤：（401）在context.ExecuteQuery（）中未經授權：ASP.Net

Question

我正在使用以下代碼段連接Sharepoint Server API。 此片段在空白項目中運行良好，符合預期。 它返回列表公告，共享文檔，任務...等。

但是當我將它與現有應用程序集成時，它會拋出The remote server returned an error: (401) Unauthorized context.ExecuteQuery() The remote server returned an error: (401) Unauthorized錯誤消息。

我嘗試提供Context.Credentials = new NetworkCredential( username, password, domain ); 返回相同的錯誤。

碼：

using (ClientContext context = new ClientContext(ServerUrl))
{
    //get all the lists from sharepoint
    //all the files and folders resides inside some list.
    Web web = context.Web;
    context.Load(web.Lists, its => its.Include(it => it.Title, it => it.Id, it => it.RootFolder.ServerRelativeUrl));

    context.ExecuteQuery();
    foreach (var list in web.Lists)
    {
        //add all the lists to treeview
        //list id is assigned to node value and list's server relative url is assigned to tooltip
        tvItems.Nodes.Add(new Telerik.Web.UI.RadTreeNode
        {
            Value = list.Id.ToString(),
            Text = list.Title,
            ExpandMode = Telerik.Web.UI.TreeNodeExpandMode.ServerSide,
            ToolTip = list.RootFolder.ServerRelativeUrl
        });
    }
}

我嘗試更改context.Load(web.Lists, its => its.Include(...);代碼行到context.Load(web.Lists, its => ClientObjectQueryableExtension.Include(...)); make確保sharepoint參考不會與現有的一次混合。

任何幫助都將很好地解決這個問題。

Answer 1

如果您想要從提供商托管的應用程序中訪問上下文，您可以使用以下內容：

        var spContext = SharePointContextProvider.Current.GetSharePointContext(HttpContext);
        using (var clientContext = spContext.CreateUserClientContextForSPHost())
        { 
          .... 
        }