Sharepoint authentication Client object model for direct links

We have a Sharepoint 2010 site and another website [ASP.Net Web API 2] which uses Client object model to get data from Sharepoint, this is an intranet environment.
The Client object model part of it is working fine, if any user logs in, it works with that user credentials. But when a user tries to access a direct SP link, ex: a link to a document from a document library, it pops up a credentials window.
How to get rid of this pop up window, or how to set the authentication for the entire server when the user logs in to our web api.

Hi,
The prompt for credential can be seen as a behavior by designed for the sake of safe and there are no solutions to avoid it at this moment per my knowledge.
Here is a similar thread will provide more information:
http://social.msdn.microsoft.com/Forums/sharepoint/en-US/85b5d22a-88ed-4975-8de9-1d65df293aeb/avoiding-prompting-for-authentication-when-accessing-the-aspx-page-in-layouts-folder-from-my?forum=sharepointdevelopmentprevious
Thanks
Patrick Liang
Forum Support
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Patrick Liang
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Unable to get the SharePoint 2013 List names using Client object model for the input URL

Please can you help with this issue.
We are not able to get the SharePoint 2013 List names using Client object model for the input URL.
What we need is to use default credentials to authenticate user to get only those list which he has access to.
clientContext.Credentials = Net.CredentialCache.DefaultCredentials
But in this case we are getting error saying ‘The remote server returned an error: (401) Unauthorized.’
Instead of passing Default Credentials, if we pass the User credentials using:
clientContext.Credentials = New Net.NetworkCredential("Administrator", "password", "contoso")
It authenticates the user and works fine. Since we are developing a web part, it would not be possible to pass the user credentials. Also, the sample source code works perfectly fine on the SharePoint 2010 environment. We need to get the same functionality
working for SharePoint 2013.
We are also facing the same issue while authenticating PSI(Project Server Interface) Web services for Project Server 2013.
Can you please let us know how we can overcome the above issue? Please let us know if you need any further information from our end on the same.
Sample code is here: http://www.projectsolution.com/Data/Support/MS/SharePointTestApplication.zip
Regards, PJ Mistry (Email: [email protected] | Web: http://www.projectsolution.co.uk | Blog: EPMGuy.com)

Hi Mistry,
I sure that CSOM will authenticate without passing the
"clientContext.Credentials = Net.CredentialCache.DefaultCredentials" by default. It will take the current login user credentials by default. For more details about the CSOM operations refer the below link.
http://msdn.microsoft.com/en-us/library/office/fp179912.aspx
-- Vadivelu B Life with SharePoint

Create folder in Document Library using Sharepoint 2010 Client Object Model

I would like to check for the existence of a folder in s Sharepoint 2010 Document Library and if the folder is not found, create it. (I would then subsequently programmatically upload documents to that folder -- which I have figured out). Can someone
please help me figure out how to check for the extistence of and then create a folder using the Sharepoint 2010 Client Object Model?

You can use this:
public static void CreateFolder_ClientOM(string listName, string folderName)
ClientContext clientContext = new ClientContext("http://basesmc2008");
Web web = clientContext.Web;
List list = clientContext.Web.Lists.GetByTitle(listName);
clientContext.Load(clientContext.Site);
string targetFolderUrl = listName + "/" + folderName;
Folder folder = web.GetFolderByServerRelativeUrl(targetFolderUrl);
clientContext.Load(folder);
bool exists = false;
try
clientContext.ExecuteQuery();
exists = true;
catch (Exception ex)
if (!exists)
ContentTypeCollection listContentTypes = list.ContentTypes;
clientContext.Load(listContentTypes, types => types.Include
(type => type.Id, type => type.Name,
type => type.Parent));
var result = clientContext.LoadQuery(listContentTypes.Where
(c => c.Name == "Folder"));
clientContext.ExecuteQuery();
ContentType folderContentType = result.FirstOrDefault();
ListItemCreationInformation newItemInfo = new ListItemCreationInformation();
newItemInfo.UnderlyingObjectType = FileSystemObjectType.Folder;
newItemInfo.LeafName = folderName;
ListItem newListItem = list.AddItem(newItemInfo);
newListItem["ContentTypeId"] = folderContentType.Id.ToString();
newListItem["Title"] = folderName;
newListItem.Update();
clientContext.Load(list);
clientContext.ExecuteQuery();
Blog | SharePoint Field Notes Dev Tool |
ClassMaster

Sharepoint 2013 client object model FQL

Hi,
Im using Sharepoint 2013 client object model api and im trying to search on sharepoint by using FQL, but I dont get any results when Im using FQL, but when Im trying similar KQL syntax I get results.
I''ve heard that I need to enable the FQL but I can't find how, In 2010 api its a proeprty in KeywordQuery class.
code:
KeywordQuery keyword = new KeywordQuery(client);
// KQL
keyword.QueryText = "title:mon*";
// FQL
keyword.QueryText = "starts-with(title:string("mon"))";
Thank you

To enable FQL, you have to copy the default result source and modify the Query Transformation string {?{searchTerms} -ContentClass=urn:content-class:SPSPeople}, at one of these
levels -- Search Service Application (SSA), Site Collection, or Site -- and in one of the following ways:
Remove the KQL filter, -ContentClass:urn:content-class:SPSPeople, from the Query Transformation. The resulting Query Transformation string will be: {?{searchTerms}}
Replace the Query Transformation string with an FQL equivalent, such as {?andnot({searchTerms},filter(contentclass:"urn:content-class:SPSPeople*"))}.
Source :http://msdn.microsoft.com/en-us/library/office/jj163973.aspx
Bala

How to Enable Ratings on SharePoint List using Client Object Model for Office 365 SharePoint Site.

How to Enable Ratings on SharePoint List using Client Object Model code for Office 365 SharePoint Site.
Thanks in Advance
Rajendra K

Hi Rajendra,
here you are the code and the blog, let me know if this helps
using (ClientContext ctx = new ClientContext(https://yourSiteUrl))
Web w = ctx.Web;
List l = w.Lists.GetByTitle("yourListName");
ctx.Load(l, info => info.Id);
ctx.ExecuteQuery();
string ListID = l.Id.ToString();
Microsoft.Office.Server.ReputationModel.Reputation.SetRating(ctx, ListID, 1, 5);
ctx.ExecuteQuery();
http://blogs.technet.com/b/speschka/archive/2013/07/08/how-to-use-csom-with-ratings-in-sharepoint-2013.aspx
Kind Regards, John Naguib Technical Consultant/Architect MCITP, MCPD, MCTS, MCT, TOGAF 9 Foundation

SharePoint 2013 Client Object Model fetch image rendition info

Hi,
Below is the scenario I am trying with SharePoint 2013 managed client object model.
FrontEnd: ASP.Net web application
BackEnd: SharePoint 2013.
I have a publishing image with rendition applied and I am able to fetch the image URL like "/{site}/{lib}/{imagename}?RenditionId={id}".
I am able to download the file "/{site}/{lib}/{imagename}" using File.OpenBinaryDirect()
This is giving the original file without any renditions applied. If I use the same method with URL "/{site}/{lib}/{imagename}?RenditionId={id}", it gives me 400 Bad request error.
I have also tried using file.OpenBinaryStream() method with URL "/{site}/{lib}/{imagename}?RenditionId={id}" whichi still gives the original file without rendition
Please let me know how to fetch the below info using the rendition id?
RenditionVersion;
SourceImageWidth;
SourceImageHeight;
CropStartX;
CropStartY;
CropWidth;
CropHeight;
Alternatively, let me know if I could get the download file with rendition applied without requiring the above attributes.
Note: I am looking for solutions in client side programming (client object model/ web services (REST) . The server object model has classes "ImageRenditionCollection" and "ImageRendition" which can provide the above image info.
Thanks,
Srikanth

To enable FQL, you have to copy the default result source and modify the Query Transformation string {?{searchTerms} -ContentClass=urn:content-class:SPSPeople}, at one of these
levels -- Search Service Application (SSA), Site Collection, or Site -- and in one of the following ways:
Remove the KQL filter, -ContentClass:urn:content-class:SPSPeople, from the Query Transformation. The resulting Query Transformation string will be: {?{searchTerms}}
Replace the Query Transformation string with an FQL equivalent, such as {?andnot({searchTerms},filter(contentclass:"urn:content-class:SPSPeople*"))}.
Source :http://msdn.microsoft.com/en-us/library/office/jj163973.aspx
Bala

SharePoint 2010 client object model read survey list

Hello all,
please suggest me how to read
questions and answers in a survey list using
client object model
if possible some code is fine.
Like Cricket

Hi,
below is the code for reading the items from survey list in .Net managed client object modal share point 2010
using (ClientContext context = new ClientContext("siteUrl"))
context.Credentials = System.Net.CredentialCache.DefaultNetworkCredentials;
Web web = context.Web;
context.Load(web);
List survey = web.Lists.GetByTitle("SurveyListName");
FieldCollection fldColl = survey.Fields;
context.Load(fldColl);
ListItemCollection coll = survey.GetItems(CamlQuery.CreateAllItemsQuery());
context.Load(survey);
context.Load(coll);
context.ExecuteQuery();
//Load the questions and answers in the dictionary object
Dictionary<string, List<string>> questionAnswers = new Dictionary<string, List<string>>();
foreach (Field fld in fldColl)
if (fld.FieldTypeKind == FieldType.Choice && !fld.FromBaseType)
foreach (ListItem item in coll)
if (item.FieldValues.ContainsKey(fld.InternalName))
string value = item.FieldValues[fld.InternalName].ToString();
if (!string.IsNullOrEmpty(value))
if (!questionAnswers.ContainsKey(fld.Title))
List<string> values = new List<string>();
values.Add(value);
questionAnswers.Add(fld.Title, values);
else
List<string> oldValues = questionAnswers[fld.Title];
oldValues.Add(value);
questionAnswers[fld.Title] = oldValues;
Thanks,
Anil
Anil

Client Object Model Sharepoint 2010

We are using client object model in sharepoint 2010
When we excute the ExcuteQuery method of clinet obejct model we are getting following error
The security validation for this page is invalid. Click Back in your Web browser, refresh the page, and try your operation again
Girish

Hi ,
A FormDigest control has to be included to create a digest for security validations when performing some modifications to SharePoint data. It adds a security token inside your page based on user, site and time. Once the page is posted back the security token
is validated. Once the security token is generated it’s valid for a configurable amount of time.
for more info check the below links
http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.webcontrols.formdigest.aspx
http://ranaictiu-technicalblog.blogspot.com.au/2010/02/sharepoint-2010-client-object-model-for.html
if above link is not working, use below function before execute the query.
function CustomUpdateFormDigest()
if(window._spPageContextInfo != null)
var $v_2 = window._spPageContextInfo;
var $v_3 = $v_2.webServerRelativeUrl;
var $v_4 = window._spFormDigestRefreshInterval;
UpdateFormDigest($v_3, $v_4);
CustomUpdateFormDigest();
Please mark it as an answer/helpful if it is useful.
Thanks
Mahesh

Cannot create list in SharePoint 2010 using Client Object Model

I am trying to utilize SharePoint 2010 Client Object Model to create a List based on a custom template. Here's my code:
public void MakeList(string title, string listTemplateGUID, int localeIdentifier)
string message;
string listUrl;
List newList;
Guid template;
ListCreationInformation listInfo;
Microsoft.SharePoint.Client.ListCollection lists;
try
listUrl = title.Replace(spaceChar, string.Empty);
template = GetListTemplate((uint)localeIdentifier, listTemplateGUID);
listInfo = new ListCreationInformation();
listInfo.Url = listUrl;
listInfo.Title = title;
listInfo.Description = string.Empty;
listInfo.TemplateFeatureId = template;
listInfo.QuickLaunchOption = QuickLaunchOptions.On;
clientContext.Load(site);
clientContext.ExecuteQuery();
lists = site.Lists;
clientContext.Load(lists);
clientContext.ExecuteQuery();
newList = lists.Add(listInfo);
clientContext.ExecuteQuery();
catch (ServerException ex)
Now, this particular part, newList = lists.Add(listInfo); clientContext.ExecuteQuery();, the one that is supposed to create the actual list, throws an exception:
Message: Cannot complete this action. Please try again.
ServerErrorCode: 2130239231
ServerErrorTypeName: Microsoft.SharePoint.SPException
Could anyone please help me realize what am I doing wrong? Thanks.

I've made progress - well, at least to some extent. The previous message related to the "Invalid file name" is not appearing any more. I now realize that it is necessary to specify feature ID, list template kind, as well as custom schema in order
to order SharePoint 2010 to create the document library.
However, there's a new problem which isn't documented on the net almost at all (at least I was unable to find anything): The document library gets created, but I cannot access it. Further inspection showed that the doc lib views are not created. Basically,
the only accessible doc lib page is the document library settings page. Also, I get the server exception with the message:
Server Out Of Memory. There is no memory on the server to run your program. Please contact your administrator with this problem.
Any idea what is causing this issue? Thanks.
Hi Boris
Borenović,
I think I found the reason for this notorious "Server Out Of Memory" error.
(Man, it took 4 hrs of frustrating troubleshooting without any direct hints... very disappointing
MSFT developers :( ).
Anyway,
All the "Form" elements at the bottom need to have SetupPath="pages\form.aspx"
attribute (by default this attrib is missing when you copy the whole List element from inside the stp's manifest.xml file).
Also, just make sure that each "View" element has correct "WebPartZoneID", "SetupPath" and "Url" attribute values otherwise that list/library will
be created successfully but will fail to load when you try to access it (with the VERY helpful "Cannot complete this action, contact administrator" error). Even if you enable stack trace (or check ULS logs) you will find "An unexpected
error has been encountered in this Web Part. Error: A Web Part or Web Form Control on this Page cannot be displayed or imported. The type could not be found or it is not registered as safe." and you will never realize it's because of the
incorrect attributes ("WebPartZoneID", "SetupPath" or "Url" as mentioned above).
Come on Microsoft, you can do better than that?
If the API needs this attrib then why is it missing inside the manifest.xml file when
an STP file generated in the first place?

SP 2013 Client Object Model: What credentials to use for Office 365 and sites behind ADFS 3.0?

I'm using the SharePoint 2013 Client Object Model to access a site that is either in Office 365 or behind an ADFS 3.0 login screen, is it sufficient to use the new SharePointOnlineCredentials credentials
or do I need other types of credentials for the sites behind ADFS 3.0 ? Is so, what type of credentials would I use for the sites behind ADFS 3.0?
using (ClientContext ctx = new ClientContext(siteUrl))
ctx.Credentials = new SharePointOnlineCredentials("some user", "a secure string password");
while (ctx.HasPendingRequest)
ctx.ExecuteQuery();
// etc.

Hi,
According to your post, my understanding is that you want to know the ways to get credential either in Office 365 or sites behind ADFS 3.0.
For Office 365, you can use SharePointOnlineCredentials Object to get credential. For SharePoint sites behind ADFS 3.0, you can use NetworkCredential Object:
ctx.Credentials = new NetworkCredential(UserName, Password, Domain);
The link below will provide more information about using the ADFS FedAuth Token programmatically through the SharePoint Client Object Model:
http://samirvaidya.blogspot.com/2013/05/using-adfs-fedauth-token.html
Best regards
Patrick Liang
TechNet Community Support

Add attachments to List Item using JavaScript Client object model in SP2010

Hi All ,
I have created custom form for submitng data in list using javascript client object model/jquery .
Now I want to add option to uplaod multiple attachments to that list item also .
Is there option with client object model for uplaoding attachment.
Thanks
M
Manesh G

Can you try this and let me know
using (SPSite _site = new SPSite(SPContext.Current.Site.Url))
using (SPWeb _web = _site.OpenWeb())
//Let's suppose your Item Id is 1
int ItemId = 1;
SPList oList = _web.Lists["EmployeeList"];
SPListItem _item = oList.GetItemById(ItemId);
if (FileUpload1.HasFile)
_web.AllowUnsafeUpdates = true;
Stream fs = FileUpload1.PostedFile.InputStream;
byte[] _bytes = new byte[fs.Length];
fs.Position= 0;
fs.Read(_bytes, 0, (int)fs.Length);
fs.Close();
fs.Dispose();
_item.Attachments.Add(FileUpload1.PostedFile.FileName, _bytes);
_item.Update();
_web.AllowUnsafeUpdates = false;

Error in Application.Run(DisplayLoginForm) and Remote Authentication in SharePoint Online Using the Client Object Model

Hi guys
I Think that is a simple error, but I don’t have enough knowledge in .NET apps.
I make an console app that use Remote Authentication in SharePoint Online Using the Client Object Model, that a I downloaded from MSDN.
This App run ok.
But when I like to make a Windows From App. This component send me an error in Application.Run(DisplayLoginForm)
This err msg :
An unhandled exception of type 'System.InvalidOperationException' occurred in System.Windows.Forms.dll
Additional information: Starting a second message loop on a single thread is not a valid operation. Use Form.ShowDialog instead.
Is there any way to use a form inside a windows form?
Thank in advance
Ramiro
Ramiro B

Hi,
Based on the error message, please do as following:
1. Check your code logic below:
void btn_Click(object sender, System.EventArgs e)
Thread t = new Thread(StartMyForm);
t.TrySetApartmentState(ApartmentState.STA);
t.Start();
public static void StartMyForm()
Application.Run(new MyForm(..));
2.Try to add the following code line in your code.
Application.Restart();
If the issue still exists, please provide your requirement and code for a further research.
Best Regards
Dennis Guo
TechNet Community Support

Item.SystemUpdate for Client Object Model in sharepoint 2010

I have a javascript that modifies a column/field in the list item when opened. However, this changes the Last Modified By field of the item.
is there a SystemUpdate method for Client Object Model?
----------------------- Sharepoint Newbie

I got a work around for this problem..
Before updating the Modified, Modified By values, First we need to Disable the version settings for document library. Once the fields updated then again we need to enable the version settings.
find the updated code below..
                                    //Disable Version settings for DOC LIB
before update Metadata
                                        _List.EnableVersioning
= false;
                                        _List.Update();
                                        _cContext.ExecuteQuery();
                                       ListItem item = newFile.ListItemAllFields;
                                       _cContext.Load(item);
                                        //Updating Metadata Created,
CreatedBy, Modified, Modified By
                                         item["Created"]
= "8/10/2013 7:04 PM";
                   item["Author"] = CreatedUserValue;
                   item["Modified"] = "8/10/2013 7:04 PM";
                     item["Editor"] = ModifiedUserValue;
   item.Update();
                                        _cContext.ExecuteQuery();
                                        //Enable Version settings
for DOC LIB after update Metadata
                                           _List.EnableVersioning
= true;
                                      _List.Update();
                                        _cContext.ExecuteQuery();
Rajendra

SharePoint 2013 implement simple logout button which do not redirect to default sign out page using JavaScript client object model

I am using windows authentication in my web application.
My requirement is to implement a sign out button which will sign out the user without having him to close the browser and application should not ask him to login again.
I tried following two options:
1. Redirecting the user to default signout.aspx page " /_layouts/15/SignOut.aspx "
2. Using "Sign In as a different user" URL " /_layouts/15/closeConnection.aspx?loginasanotheruser=true "
In first case, user is redirected to default sign out page but he can press "Go Back to Site" link to revisit the site. Another major issue is that the user has to close the browser to sign out from the application completely, which is not desirable
in my project requirement.
In second case, the the current user is signed out of the application but if the user has saved the password in browser, he gets signed in automatically to the application.
I also came across the solution where we replace the default sign out page with a custom sign out page, but I am not sure whether it can be implemented using JavaScript Client Object Model of SharePoint.

Hi
I'm basically looking for the exact answer for the query.
Meanwhile you need to go through the link mentioned below in order to understand how to do it.
Debugging and Logging Capabilities in SharePoint 2010
Indul Hassan
Microsoft Community Contributor
http://www.indulhassan.com
You Snooze.. You Lose !!

SharePoint Online / Office 365 -- Client Object Model

Hello,
i try to get some Data from the SharePoint Online "Office365" Beta with the Client Object Model. I use an Sample from the MSDN but i always get the Error
"Server was unable to process request. ---> The server was unable to process the request due to an internal error. ...." in Visual Studio 2010.
Following the Code Snip:
ClientContext clientContext = new ClientContext("https://URI.sharepoint.com/");
clientContext.AuthenticationMode = ClientAuthenticationMode.FormsAuthentication;
clientContext.FormsAuthenticationLoginInfo = new FormsAuthenticationLoginInfo("USER", "PASS");
Web web = clientContext.Web;
ListCollection allLists = web.Lists;
clientContext.Load(web);
clientContext.Load(allLists);
clientContext.ExecuteQuery();
Console.WriteLine("{0} ({1})", web.Title, web.Description);
foreach (List list in allLists)
Console.WriteLine("{0} ({1})", list.Title, list.BaseType);

Hi M.Litschke. You should have received a welcome email when you signed up for the Beta that had the community forum link & login details in it. Did you not recieve one?Myles Jeffery | Thinkscape |
SharePoint Online Deployment |
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Sharepoint authentication Client object model for direct links

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