I developed a WCF Data Service, which runs fine, I can do every operation I want through.

I developed a small c# client which tests all functions: adding, removing, modifying, retrieving data.

Everything works fine on my visual studio server, but once I'm on the IIS Server:

• I can add/retrieve data
• I cannot edit data

When I try to edit data I get this error:

System.Data.Services.Client.DataServiceRequestException was unhandled

Message=Une erreur s'est produite lors du traitement de cette requête.

Source=System.Data.Services.Client

StackTrace:

à System.Data.Services.Client.DataServiceContext.SaveResult.HandleBatchResponse()

à System.Data.Services.Client.DataServiceContext.SaveResult.EndRequest()

à System.Data.Services.Client.DataServiceContext.SaveChanges(SaveChangesOptions options)

à System.Data.Services.Client.DataServiceContext.SaveChanges()

à WSTester.Program.ModifySomeThings(Entities entities) dans D:\Workspace\10067.GfK

Telecontrol.TOM\Release\V3.1\WSTester\Program.cs:ligne 90

à WSTester.Program.Main(String[] args) dans D:\Workspace\10067.GfK Telecontrol.TOM\Release\V3.1\WSTester\Program.cs:ligne 23

à System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)

à System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)

à Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()

à System.Threading.ThreadHelper.ThreadStart_Context(Object state)

à System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)

à System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

à System.Threading.ThreadHelper.ThreadStart()

InnerException:

System.Data.Services.Client.DataServiceClientException

Message= Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

401 - Unauthorized: Access is denied due to invalid credentials.

.content-container{background:#FFF;width:96%;margin-top:8px;padding:10px;position:relative;} -->

Server Error

401 - Unauthorized: Access is denied due to invalid credentials.

You do not have permission to view this directo开发者_运维技巧ry or page using the credentials that you supplied.

Source=System.Data.Services.Client

StatusCode=401

StackTrace:

à System.Data.Services.Client.DataServiceContext.SaveResult.d__1e.MoveNext()

InnerException:

Which is strange, because I've all rights in my WCF Data service(and it works with visual studio), and I'm in anonymous mode in IIS, so I should have all rights to runs this query. IIS_USR has FULL CONTROL on the web folder, so I really don't see what can be the problem

I just fixed mine by giving "full control" to the "IUSR" account for the WCF folder. That's all I did and it worked.

Try using the impersonation features of the app pool to user that has permissions. I have had many problems in the past using the default AppPoolIdentity features of IIS 7 and generally assign it to either a user setup for this very purpose or set it to use networkservice.

It is most likely that the pool doesn't have the proper permissions to execute properly.

I made it run with a custom user and now it works, so if you have this problem, you can try the following on your IIS Server:

1. Create a windows user;
2. Give it read/write/modify/execute/... rights on your WCF data service folder;
3. Create a new app pool with .NET 4, integrated mode, and this user;
4. On the authentication of the website, enable only the anonymous mode, and set the user to "Application Pool identity".