Ok, les gars, ça me rend fou. J'ai obtenu l'entité (odata) suivante qui représente une structure de page dans laquelle chaque page peut avoir des enfants et des parents. (Fondamentalement, un graphique dans lequel tous les nœuds pourraient être connectés). Dans la base de données, il est représenté par une relation plusieurs-à-plusieurs avec deux tables Page <-> PagePage <-> Page
.OData et insertion (AddLink) de relations plusieurs-à-plusieurs
Le problème est, je ne suis pas en mesure d'insérer une nouvelle entité, y compris une relation. La dernière chose que j'ai essayé était:
Page page = new Page()
{
Id = Guid.NewGuid(),
Title = "New Page",
Created = DateTime.Now,
LastChanged = DateTime.Now,
IsRedirected = false,
Position = 0,
Html = "Add your HTML here.",
Parent = { parent }
};
this.Context.AddToPages(page);
this.Context.AddLink(parent, "Children", page);
parent.Children.Add(page);
this.Context.SaveChanges();
Je ne peux penser à rien d'autre à essayer. Est-ce que quelqu'un a craqué celui-ci?
Edit 1: Voici une photo du schéma de base de données:
Edit 2: Détails de l'exception:
System.Data.Services.Client.DataServiceRequestException was unhandled
Message=An error occurred while processing this request.
Source=System.Data.Services.Client
StackTrace:
at System.Data.Services.Client.DataServiceContext.SaveResult.HandleBatchResponse()
at System.Data.Services.Client.DataServiceContext.SaveResult.EndRequest()
at System.Data.Services.Client.DataServiceContext.SaveChanges(SaveChangesOptions options)
at System.Data.Services.Client.DataServiceContext.SaveChanges()
at PortfolioManagementConsole.Models.PageViewModel.SaveChanges(Object parameter) in C:\Users\Daniel\documents\visual studio 2010\Projects\PortfolioManagementService\PortfolioManagementConsole\Models\PageViewModel.cs:line 59
at PortfolioManagementConsole.Common.RelayCommand.Execute(Object parameter) in C:\Users\Daniel\documents\visual studio 2010\Projects\PortfolioManagementService\PortfolioManagementConsole\Common\RelayCommand.cs:line 52
at MS.Internal.Commands.CommandHelpers.CriticalExecuteCommandSource(ICommandSource commandSource, Boolean userInitiated)
at System.Windows.Controls.Primitives.ButtonBase.OnClick()
at System.Windows.Controls.Button.OnClick()
at Telerik.Windows.Controls.RadButton.OnClick() in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Controls\Buttons\RadButton.cs:line 348
at System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp(MouseButtonEventArgs e)
at System.Windows.UIElement.OnMouseLeftButtonUpThunk(Object sender, MouseButtonEventArgs e)
at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
at System.Windows.UIElement.OnMouseUpThunk(Object sender, MouseButtonEventArgs e)
at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
at System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)
at System.Windows.Input.InputManager.ProcessStagingArea()
at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.Run()
at System.Windows.Application.RunDispatcher(Object ignore)
at System.Windows.Application.RunInternal(Window window)
at System.Windows.Application.Run(Window window)
at System.Windows.Application.Run()
at PortfolioManagementConsole.App.Main() in C:\Users\Daniel\documents\visual studio 2010\Projects\PortfolioManagementService\PortfolioManagementConsole\obj\x86\Debug\App.g.cs:line 0
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException: System.Data.Services.Client.DataServiceClientException
Message=<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<error xmlns="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata">
<code></code>
<message xml:lang="de-CH">An error occurred while processing this request.</message>
</error>
Source=System.Data.Services.Client
StatusCode=500
StackTrace:
at System.Data.Services.Client.DataServiceContext.SaveResult.<HandleBatchResponse>d__1e.MoveNext()
InnerException:
Quelle erreur obtenez-vous? Ou est-ce juste que l'entité ne semble pas être insérée? – svick
Il existe une exception DataServiceRequestException dans la méthode context.SaveChanges(). –
Et le message de l'exception? – svick